M. Paramathma’s research while affiliated with National Dairy Development Board and other places

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Publications (34)


Genetic interactions in Eucalyptus species
  • Article

December 2020

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4 Reads

Journal of Innovative Agriculture

Paramathma M




Germination behavior of Pongamia pinnata Roxb. seeds in fly ash incorporated medium

December 2014

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10 Reads

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3 Citations

Indian Journal of Forestry

Fly ash is one of the pollutants of thermal power generation. Germination of Pongamia pinnata (Pungam) have been studied in fly ash incorporated nursery mixtures. The sand and fly ash mixed with nursery medium have increased germination and seedling vigour. Whereas fly ash alone have found to be inhibitory to seed germination and seedling vigour.


Dardizing cutting size for clonal multiplication of Jatropha curcas

January 2014

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14 Reads

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2 Citations

Agricultural Science Digest - A Research Journal

An attempt was made to standardize the cutting size for clonal multiplication of Jatropha. Four different sizes of stem cuttings viz., 5 mm-10 mm, 10 mm-15 mm, 15 mm-20 mm and 20 mm-25 mm were taken based on mid diameter of the cuttings and raised in mistless polytunnel system. The growth parameters viz., survival percentage, average root length, number of roots and sprouts per plant were taken. Among the sizes, the cutting size of 20 mm-25 mm expressed maximum survival percentage (94.34 %) and was followed by 15 mm-20 mm (87.18 %). All the clonal cuttings were planted in the field adopting Randomized Block Design in four replications at an espacement of 2m x 2m. These clonal plants evaluated at three months interval up to one year. The cuttings expressed significant variability in terms of growth. Among different cutting sizes, the cutting size of 20 mm-25 mm expressed early superiority in terms of plant height (184.58 cm), diameter (80.63 cm), and number of branches (6.33) under field conditions.



Influence of pre-emergence herbicides on germination, seedling growth, dry matter of pungam and weed control efficiency
EFFECT OF PRE-EMERGENCE HERBICIDES ON WEED CONTROL IN PUNGAM (PONGAMIA PINNATA L.) NURSERY 3 4
  • Article
  • Full-text available

July 2013

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148 Reads

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2 Citations

Field experiments were carried out to evaluate two different pre-emergence herbicides on weed control efficiency, germination and seedling growth of pungam (Pongamia pinnata) nursery. Three days after sowing, pre-emergence herbicides viz. atrazine (50% WP) and fluchloralin (45% EC) were applied at different concentrations on the nursery bags using rose cane. Thirty days after application of herbicides, observations were made on germination percentage and 50 days after application of herbicides, number of predominant weeds (broad leaved, grasses and sedges), weed dry weight(g), weed control efficiency and root length (cm), shoot length (cm) and dry matter production (g-5 seedling) of pungam seedling in each treatment were recorded. The results revealed that the compatibility of application of pre-emergence herbicide of atrazine at 0.10%-0.20% can be used effectively to control broad leaved weeds, without impairing the germination and seedling growth of Pongamia pinnata. Cleft grafting approach for enhancing seed production in Pongamia pinnata ROXB Authors R Jude Sudhagar Masilamani P, M Paramathma Publication date 2013 Journal Journal of Non-timber Forest Products Volume 20 Pages 239-242

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Cleft grafting approach for enhancing seed production in Pongamia pinnata ROXB

July 2013

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31 Reads

Journal of Non Timber Forest Products

Experiments were conducted to develop a high seed yielding Pongamia pinnata clone through cleft grafting and to estimate the grafting compatibility, survival and growth attributes of grafted plant over a period of seven weeks besides assessing the survival percentage, plant height (cm), number of leaves in the grafted clones in comparison with check under field conditions. The results in the nursery stage exhibited good graft compatibility, higher survival percentage (93.0%) and more number of sprouts (26.6) in grafted plants. Biometric observations recorded in the field at 4 MAP (Months After Planting) revealed that the initial height growth and the number of leaves in the grafted plants (61.9cm; 285.6) was more than the check (42.9cm; 121.4) while at 12 MAP, survival percentage was more in the check. Considering the good graft compatibility in cleft grafting, it could be used as an efficient tool for mass multiplication of Pungam clones with high seed productivity.


Seed Source Variation and Biochemical Characterizations of Pongamia pinnata Genetic Resources

January 2013

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26 Reads

Madras Agricultural Journal

Studies on Seed source variation and biochemical characterizations of ten selected Pongamia pinnata genetic sources were carried out at Forest College and Research Institute, Mettupalayam in the Year 2009-10. The studies revealed that among the selected seed sources, Karamadai seed source shows superiority over others in terms of seed length (24.45cm), seed breadth (15.46cm), seed length to breadth ratio (1.90 cm), hundred seed weight (144.30g) and oil content in (24.56%).The values for saponification and Iodine number of most sources fell within the acceptable limits of Indian and international biodiesel standards. Only the free fatty acid percentage and acid value exceeded the permissible limits. But this does not subdue the utility of these seed sources which exhibited superiority in terms of growth, physico-chemical attributes and yield promoting their deployment for large scale biofuel plantation establishment.


Citations (18)


... They stated that fallen fruits tend to show low viability. These findings duly supported by the observation of Srimathi et al. (2013) in Pongamia pinnata, Gurunathan et al. (2009), Kathiravan (2004, Silva et al. (2017) in Jatropha curcas, Srimathi et al. (2001) in Jamun. Ferreira et al. (2017), Hay and Whitehouse (2017), Tetteh et al. (2018) also found a swift and significant reduction of germination percentage in the seeds obtained from immature fruits (Yellow and Green). ...

Reference:

Effect of Methods of Seed Collection on Quality and Storability of Prinsepia utilis Royle (Bhekal) Seed
Influence of Size Polymorphism on Seed and Seedling Quality of Jatropha curcas
  • Citing Article
  • May 2009

Madras Agricultural Journal

... The above findings support the results of Srivastava (1995) in different seed sources of Bauhinia variegata, Mohapatra (1996) in Acacia catechu, Manga and Sen (1998) in Prosopis cineraria, Chauhan and Verma (1993) in Acacia catechu, Thakur et al. (2000) in Alnus nitid, Anand (2003) in Bauhinia variegata half-sib progeny and Antony Jospeh Raj et. al. (2006) in Bambusa bambos. ...

Correlation and Path Coefficient Analysis in Bambusa bambos (L.) Voss

Indian Journal of Forestry

... Zobel and Talbert (1984) opined that the success of any tree breeding programme depended to a great extent on the knowledge of the genetic architecture of the population handled by the breeder. The breeder needs a methodology which can provide reliable information on the nature of gene action and quantum of genetic potential available in the material handled (Paramathma, 2020). It is obvious that in any projected experiment, the genetic variability should be of high order that will permit high selection efficiency. ...

Genetic interaction of physiological traits in Eucalyptus species
  • Citing Article
  • March 2020

Journal of Innovative Agriculture

... In contrast to current management discussed above, in situ silvicultural management is intended to promote dynamic genetic processes to favour adaptation and preserve genetic diversity in the targeted population; flowering is maintained in a sufficient number of reproducing trees while seedling production, growth and survival through adequate light penetration, fire prevention and herbivore control are promoted (references in Rauch & Bar-Yam, 2005;Faith et al., 2008). Such management should ensure the continued existence of target tree populations and create favourable conditions for growth and vitality of the target tree species and their natural regeneration Rotach, 2005). ...

Conservation and management in genetic resources of biofuel crops
  • Citing Article
  • June 2020

Journal of Innovative Agriculture

... Atrazine, a pre-emergence herbicide have been shown to be effective at controlling broad leaved weeds with no negative impact on Pongamia seed germination and seedling growth at a concentration of 0.1-0.2% (Poomaruthai et al., 2013). Increasing tree density is also likely to reduce weed pressure and the need for weed control (Wylie et al., 2021). ...

EFFECT OF PRE-EMERGENCE HERBICIDES ON WEED CONTROL IN PUNGAM (PONGAMIA PINNATA L.) NURSERY 3 4

... Furthermore, treatment with 1% Na 2 HPO 4 also improved germinability [about 70% at IMC]. In Jatropha, dipping seeds in 2% Na 2 HPO 4 for 6 h enhanced seedling emergence and seedling quality parameters (Srimathi and Paramathma 2006). Weathering seeds for 7 days elevated the GP, with weathering at IMC resulting in higher GP [73.33%], although for 24 h; F-Water soaking for 24 h; G-Soaking in 1% of Na 2 HPO 4 for 24 h; H-Weathering for 7 days; I-Weathering for 21 days; J-Soaking in GA 3 1000 ppm for 24 h; K-Fruit soaking in water for 8 days) manifest hypogeal germination (Fig. 12). ...

Influence of seed management techniques for production of quality seedlings in Jatropha
  • Citing Article
  • January 2006

... The 10% herbal kunapajala primed seeds may have improved seedling growth parameters because of the rapid start of enzyme activity and breakdown of stored food components. In other study, Jatropha curcas and Pongamia pinnata seeds that were fortified with 2% panchagavya showed a higher percentage of germination, which may have been caused by the activities of microorganisms and growth stimulants such GA 3 and IAA in a liquid mixture (Srimathi et al. 2013). Other findings reported that the percentage of kalamegha and ashwagandha seeds that germinated after being treated with 10% Kunapajala and Panchagavya exhibited a substantial increase above no priming (Ankad 2018). ...

Efficacy of Panchagavya on seed invigoration of biofuel crops
  • Citing Article
  • November 2013

Scientific Research and Essays

... Among various species this genus, Jatropha maheshwarii Subr. and Nayar is an endemic species whose distribution is constrained to the southern coastal belts, plains and hilly regions of Kanyakumari, Thoothukudi and Tirunelveli districts of Tamil Nadu, extending to the west coast up to Thiruvananthapuram district of Kerala [3]. This plant is commonly called as 'Athalai,'Vel-athalai', and 'Kattamannaku' in Tamil. ...

Potentials and Jatropha species wealth of India
  • Citing Article
  • October 2009

Current Science

... Hence, Forest College and Research Institute (FC&RI) initiated an interspecific hybridization program using J. curcas as the female recipient; other Jatropha species, including Jatropha integerrima, Jatropha podagrica, Jatropha villosa, Jatropha tanjorensis, Jatropha gossypifolia, Jatropha glandulifera, Jatropha multifeda, and Jatropha maheswari, were used as pollen donors, resulting in novel hybrids with high production potential, root rot resistance, and frost tolerance. Among the several crossings, J. curcas and J. integerrima generated successful hybrids with higher seed sets, whereas others failed to produce seeds due to crossability barriers in the pre-zygotic or postzygotic states (Parthiban et al., 2011). The F 1 progeny of successful hybrids exhibited robust growth but had small fruit resembling J. integerrima. ...

Genetic Association Studies among Growth Attributes of Jatropha Hybrid Genetic Resources
  • Citing Article
  • February 2011

International Journal of Plant Breeding and Genetics

... The cuttings expressed significant variability in terms of growth. Among these four cutting sizes, the cutting size of 20-25 mm expressed early superiority in terms of plant height (184.58 cm), diameter (80.63 cm) and number of branches (6.33) under field conditions [64]. It was observed that growth of cuttings after out planting was positively related to size [65,66]. ...

Dardizing cutting size for clonal multiplication of Jatropha curcas
  • Citing Article
  • January 2014

Agricultural Science Digest - A Research Journal