Response of Physiological Characteristics and Productivity of Hybrid Rice Varieties under System of Rice Intensifcation (SRI) over the Traditional Cultivation

Abstract

Higher and stable yield of the rice is the main bottleneck in Bangladesh due to the use of suboptimal management strategies in rice feld. From this
perspective, the experiment was carried out to investigate the impact of the system of rice intensifcation (SRI) on physiological characteristics and productivity
of hybrid rice varieties over inbred rice cultivation under traditional system. Results demonstrated that, the SRI cultivation method was more suitable than
traditional cultivation method in respect of growth and yield of hybrid rice. Among eight rice varieties, BRRI hybrid Dhan 3 exhibited the best performance in
relation to its morpho-physiological characteristics and yield attributes. Consequently, the highest yield (9.77 t ha-1) was obtained from SRI × BRRI hybrid Dhan
3 followed by SRI × Tia (9.19 t ha-1) and SRI × Heera 3 (8.46 t ha-1). Under SRI method, all the studied hybrids showed the higher yield. BRRI hybrid Dhan
3 with SRI method produced highest total dry weight hill-1 (80 g) at maturity, signifcantly higher number of panicles hill-1 (19.67 ), highest flled spikelet’s
panicle-1 (204), 1000-grain weight (28.77 g) and harvest index (45.06 %) whereas under Traditional method, higher grain yield (7.85 t ha-1) was recorded
from the hybrid Dhan Tia. Among hybrid and inbred varieties, BRRI Dhan 45 showed the lowest performance under traditional method in term of all studied
parameters. So, SRI method was better for cultivation of the hybrid rice varieties compared to traditional method for improving the condition of farming
community as a whole.

Full text

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International Journal of Plant Biology & Research
Cite this article: Hosain T, Hossain E, Nizam R, Fazle Bari ASM, Chakraborty R (2018) Response of Physiological Characteristics and Productivity of Hybrid
Rice Varieties under System of Rice Intensication (SRI) over the Traditional Cultivation. Int J Plant Biol Res 6(2): 1085.
*Corresponding author
Rajesh Chakraborty, Department of Agronomy,
Sher-e-Bangla Agricultural University, Dhaka-1207,
Bangladesh, Tel: 880-174-1664-970; Email:
Submitted: 23 January 2018
Accepted: 17 February 2018
Published: 21 February 2018
ISSN: 2333-6668
Copyright
© 2018 Chakraborty et al.
OPEN ACCESS
Keywords
•Physiology
•Productivity
•Hybrid rice
•SRI
•Yield potential
Research Article
Response of Physiological
Characteristics and Productivity
of Hybrid Rice Varieties under
System of Rice Intensication
(SRI) over the Traditional
Cultivation
Tofail Hosain1, Elias Hossain1, Rezowana Nizam1, Fazle Bari
ASM2, and Rajesh Chakraborty3*
1Department of Agricultural Botany, Sher-e-Bangla Agricultural University, Bangladesh
2Department of Soil Science, Sher-e-Bangla Agricultural University, Bangladesh
3Department of Agronomy, Sher-e-Bangla Agricultural University, Bangladesh
Abstract
Higher and stable yield of the rice is the main bottleneck in Bangladesh due to the use of suboptimal management strategies in rice eld. From this
perspective, the experiment was carried out to investigate the impact of the system of rice intensication (SRI) on physiological characteristics and productivity
of hybrid rice varieties over inbred rice cultivation under traditional system. Results demonstrated that, the SRI cultivation method was more suitable than
traditional cultivation method in respect of growth and yield of hybrid rice. Among eight rice varieties, BRRI hybrid Dhan 3 exhibited the best performance in
relation to its morpho-physiological characteristics and yield attributes. Consequently, the highest yield (9.77 t ha-1) was obtained from SRI × BRRI hybrid Dhan
3 followed by SRI × Tia (9.19 t ha-1) and SRI × Heera 3 (8.46 t ha-1). Under SRI method, all the studied hybrids showed the higher yield. BRRI hybrid Dhan
3 with SRI method produced highest total dry weight hill-1 (80 g) at maturity, signicantly higher number of panicles hill-1 (19.67 ), highest lled spikelet’s
panicle-1 (204), 1000-grain weight (28.77 g) and harvest index (45.06 %) whereas under Traditional method, higher grain yield (7.85 t ha-1) was recorded
from the hybrid Dhan Tia. Among hybrid and inbred varieties, BRRI Dhan 45 showed the lowest performance under traditional method in term of all studied
parameters. So, SRI method was better for cultivation of the hybrid rice varieties compared to traditional method for improving the condition of farming
community as a whole.
ABBREVIATIONS
      
        

INTRODUCTION
           
       
      

     
         



            
          
     



      
          
         
    
          
  
       
       

         
        

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Int J Plant Biol Res 6(2): 1085 (2018) 2/10
         

   
  
         
  

       




      
 
        
        




        


         
    

        
  
     
  

      

METHODOLOGY
Experimental site and planting materials

viz


   i.e.,   



Soil analysis data from the treatment combination
Treatment combination Total N (%)
before planting
Total N (%)
after harvest
Variety Traditional X
  
  
  
  
  
  
  
  
Variety SRI system X
  
  
  
  
  
  
  
  
Treatments details
      i.e  
        

         
    i.e        =

  

     

 

Crop husbandry
Seed sprouting:      



Preparation of tray and seed bed for growing seedling:
        
          
              
   


Preparation of the experimental plot: 
 
            
  
   
         
          

Fertilizers and manure application:   


        
        
            

       


       
      

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Chakraborty et al. (2018)
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Int J Plant Biol Res 6(2): 1085 (2018) 3/10


Application of irrigation water and drainage: 
         
        

A. Controlled irrigation:
          

B. Regular irrigation:
     

    

Intercultural operations:   
       

        
      viz. 
          
 

Data collection
Plant sampling: 
        
          
         


Leaf area and dry matter accumulation:  
       
  
        



         
          
        
         


Shoot reserve remobilization to the grain: 




AMA−



Yield components:      
        

        
        
         
       

Grain yield: 
           
    
    


   


Source-sink ratios
Ratio of spikelet’s number to leaf area (at heading): 
    




Ratios of yield sink to leaf area (at heading):  




Ratio of grain dry matter from current photosynthate to
average leaf area (heading to maturity): 

       




Percentage of grain dry matter from current
photosynthate:       
     




Statistical analysis
      
       
         
       
       



Central
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Chakraborty et al. (2018)
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Int J Plant Biol Res 6(2): 1085 (2018) 4/10
RESULTS AND DISCUSSION
Number of tillers hill-1
       

-
 

        
         

          

       
          
         
         
         

         

         
        

×
    
  
 ×
×
         
            
     ×     
           ×

Shoot dry matter accumulation and its remobilization
to grain
     
       
system in Boro       
Table 1:  Boro 
Number of tillers hill-1
30 DAT 40 DAT 50 DAT 60 DAT 70 DAT 80 DAT At harvest
Cultivation methods
       
SRI system       
Varieties
       
       
       
       
       
       
       
       
Interaction
Traditional X
       
       
       
       
       
       
       
       
SRI system X
       
       
       
       
       
       
       
       
       


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Chakraborty et al. (2018)
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Int J Plant Biol Res 6(2): 1085 (2018) 5/10
   
      
        
    
   
    
         
        
          
        
        
       
       
 

 
         

         
 × 

 ×
     

Total dry matter hill-1
        
Boro



     

     
         
      
Table 2:       
 Boro 
Shoot dry matter
at pre-anthesis
(g hill-1 )
Shoot dry matter
at maturity
(g hill-1 )
Shoot reserve
translocation
(%)
Total dry matter
at pre-anthesis
(g hill-1 )
at maturity
(g hill-1 )
Cultivation methods
     
SRI system     
Variety
     
     
     
     
     
     
     
     
Interaction
Traditional X
     
     
     
     
     
     
     
     
SRI system X
     
     
     
     
     
     
     
     
     


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Int J Plant Biol Res 6(2): 1085 (2018) 6/10
          
          
          
   

 
       
    
         


      
 
        
  
        



Leaf area index
       
         Boro
          
         
   
  


          
   
         
        
         
   ×  
   
   ×

Source-sink relation

         

      
        
         
      
          
       Boro  
         
       

  
       
   
          
           
      
          



 
          
          
         






  
       
         
     
          
       
       
        
    



     
        

        


        



       
          
       
   

   
    

Yield components
Panicles hill-1:     
          
Boro          

  


   
         
    

        
       

Central
Bringing Excellence in Open Access
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Chakraborty et al. (2018)
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Int J Plant Biol Res 6(2): 1085 (2018) 7/10
Table 3:                  
 Boro 
Leaf area
index
Ratio of spikelet’s no.
to LA* (cm-2)
Ratio of yield sink to
LA*(mg cm-2)
Ratio of grain DM from
current Pn to LA**(mg
cm-2)
Grain DM from
Current Pn (%)
Cultivation methods
     
SRI system     
Variety
     
     
     
     
     
     
     
     
Interaction
Traditional X
     
     
     
     
     
     
     
     
SRI system X
     
     
     
     
     
     
     
     
     

Abbreviations: 
Table 4: Boro
Yield contributing and yield data
Cultivation methods Panicles
hill-1
Filled
spikelet’s
panicle-1

spikelet’s
panicle-1

percentage
1000-grain
weight (g)
Grain yield
(t ha-1)
Harvest index
(%)
       
SRI system       
Variety
       
       
       
       
       
       
       
       
Interaction

Central
Bringing Excellence in Open Access
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Chakraborty et al. (2018)
Email:
Int J Plant Biol Res 6(2): 1085 (2018) 8/10
Traditional X
       
       
       
       
       
       
       
       
SRI system X
       
       
       
       
       
       
       
       
       

       
         

 × 

-1
        
        

      
        
    


         

        
         


        

        
        
      
        
    ×    
×         
  ×   
  ×        
      ×    
×        
× 
    





1000-grain weight (g):    
      Boro   
       
         

        
           
         
        

       
         
   
         
          

           

      

Grain yield:      
Boro       
     
        

           

           


        
       
      

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Chakraborty et al. (2018)
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Int J Plant Biol Res 6(2): 1085 (2018) 9/10
    ×     
  ×        
×          
            


Harvest index:     


     
 


        
          

   

 

CONCLUSION

         
         
       
      
       

       

ACKNOWLEDGEMENTS



REFERENCES
 
        
         

     


      

        


          
      

           


 

 

 
        
  

         
       

          
       

  



         
        
     


        

         
 

      


         

           
       

      
        

       



 

         
          
       




    


        Oryza sativa 



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Chakraborty et al. (2018)
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Int J Plant Biol Res 6(2): 1085 (2018) 10/10
Hosain T, Hossain E, Nizam R, Fazle Bari ASM, Chakraborty R (2018) Response of Physiological Characteristics and Productivity of Hybrid Rice Varieties under
System of Rice Intensication (SRI) over the Traditional Cultivation. Int J Plant Biol Res 6(2): 1085.
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


          
         

          

         
         

         
           

     
  Oryza sativa   

  


        
          
Oryza sativa 
    
     




