Arunachalam Muthiah

• Ph.D., in Genetics & Pl.Br.
• Managing Director at Tamil Nadu Agricultural University

A high yielding redgram culture CRG 10-01 was a cross derivative of APK 1x LRG 41 and matures in 170 to 180 days. The culture recorded an average grain yield of 1600 kg/ha under rainfed condition and 1800 kg/ha under irrigated condition with a yield increase of 19 percent over CO 6 and 22 percent over VBN 2. Drought tolerant CO 8 variety shown resi...

Twenty pigeonpea specific SSR markers were used to test the molecular diversity among 21 cultivated genotypes and three wild species. Twelve markers were monomorphic and twenty two alleles were produced by eight polymorphic markers. Ten markers were transferrable among the cultivated and wild species. The PIC value of the markers ranged from 0.081(...

The present study was initiated with forty microsatellite markers for studying the molecular genetic diversity in 28 pigeonpea genotypes (6 CGMS lines of A1, A2 and A4 sources, their maintainer lines and 16 inbred lines) utilised as the parental material for the synthesis of F1 hybrids. The level of polymorphism was too low and only 45 per cent mar...

The high yielding greengram culture COGG 973 is a cross derivative of COGG 923 x VC 6040A and matures in 55 - 60 days. This culture recorded an average yield of 845 kg/ha with a yield increase of 20 per cent over the check variety Co (Gg) 7. It has medium bold seed with a mean 100 seeds weight ranging from 3.5 to 4.0 g. It is determinate with synch...

Pearl millet is a staple food crop for millions of people living in the arid and semi-arid tropics. Molecular markers have been used to identify genomic regions linked to traits of interest by conventional QTL mapping and association analysis. Phenotypic recurrent selection is known to increase frequencies of favorable alleles and decrease those un...

An investigation was done to study the heterotic grouping and patterning in quality protein maize inbreds. Biochemical screening resulted in the choice of 3 inbreds each with high (UQPM 2, UQPM 4, and UQPM 21) and low (UQPM 18, UQPM 19, and UQPM 20) lysine and tryptophan contents respectively for genetic studies using diallel analysis. UQPM 20 x UQ...

Allele frequency changes resulting from conventional recurrent selection were monitored at 34 SSR loci distributed across all 7 linkage groups using full-sib progenies (50 each) from released pearl millet open-pollinated variety CO (Cu) 9 and its four immediate progenitor populations (ICMP 87750, ICMP 91751, ICMP 93752 and UCC 23). Agronomic perfor...

Estimation of genetic parameters would be useful in developing appropriate selection strategies. Heritability is a measure of possible genetic advancement under selection. The research work pertaining to the study of genetic variability, heritability, and genetic advance for yield and yield contributing characters in twenty one diverse elite lines...

Pearl millet is one of the most important cereals grown in drought-prone areas and is the staple grain for million of people in West Africa and India. Breeding for drought-prone environments is constrained by lack of suitable selection indices of drought stress resistance. The present study is conducted to determine the reliability of in vitro scre...

A high yielding blackgram culture COBG 653 is a cross derivative of DU 2 x VB 20 and matures in 60 - 65 days. This culture recorded an average yield of 877 Kg/ha with a yield increase of 24 per cent over the national checks varieties LBG 402 and LBG 17 under All India Co-ordinated trials. This was released for cultivation during rabi season in sout...

VBN 7- Black gram: It is a cross derivate of VBN3 / Vigna mungo var. silvestris with the Duration of 65-70 days Season and suitable to all season for Tamil Nadu. It recorded yield potential 981 kg/ha with 30% yield increase over check variety VBN (Bg) 4 Special features included High yield Resistant to Yellow Mosaic Virus, No incidence of leaf curl...

A high yielding and early maturing pearl millet hybrid, TNBH 0642 was developed from a cross between Cytoplasmic male sterile line ICMA93111 and a pollinator line PT 6029-30 at Department of millets, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore-3 during kharif 2005. It has been tested extensively in Tamil N...

A high yielding and early maturing pearl millet hybrid, TNBH 0642 was developed from a cross between Cytoplasmic male sterile line ICMA93111 and a pollinator line PT 6029-30 at Department of millets, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore-3 during kharif 2005. It has been tested extensively in Tamil N...

A high yielding Prosomillet culture, TNAU 151, was developed at the Department of Millets, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore and tested at national level for three years from 2005 to 2008. It is a non-lodging, fertilizer responsive and early maturing culture selected from the segregants of the cr...

VBN ( Bg ) 6 - Black gram: The Blackgram culture VBG04-014 is a cross derivative of Vamban 1 x Vigna mungo var silvestris maturing in 65-70 days. The overall average yield for VBG04-014 is 871 kg/ha. The culture possess special advantages like high yielding with short duration (65-70 days) and resistance to Yellow Mosaic Virus Disease

A high yielding, non-lodging, fertilizer responsive and early maturing Prosomillet culture, TNAU 164, was developed at the Department of Millets, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore and tested at national level for three years from 2006 to 2009. It is a derivative of the cross involving TNAU 137 X...

Evaluation of three hundred and sixty four proso millet germplasm accessions were done during rabi, 2008-2009 at Department of Millets, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore to study genetic variability, diversity, correlation and path analysis of yield and its components. High variability observed f...

Green gram is also one of the important pulse crops. Conventional breeding methods are very much difficult to utilize in thedevelopment of new genotypes. Hence incorporation of the molecular approaches along with the conventional techniques ismost powerful method. Evaluation of the available wild accessions are more useful for selecting desirable g...

Mungbean (Vigna radiata (L.) Wilczek) is having a desirable characters like short duration, high protein, less anti nutritionalfactors, nitrogen fixing capacity, suitable for inter cropping, making many kinds of foods for higher human consumption andcosmetics products and some of the undesirable characters like low yield, low test weight.The aim of...

A short duration high yielding Kudiraivali culture TNAU 43 was developed at the Department of Millets, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore and was released as CO (KV) 2 during 2009. It is a pureline selection from the Germplasm accession EF 79. This variety yields on an average 2622 kg/ha of grain...

Special features • High yield • High protein content (24.16%) • Resistance to yellow mosaic virus • Resistant to powdery mildew • Multiblooming type

Madras Agric. J., 96 (7-12): 319-321, December 2009

A short duration high yielding Kudiraivali culture TNAU 43 was developed at the Department of Millets, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore and was released as CO (KV) 2 during 2009. It is a pureline selection from the Germplasm accession EF 79. This variety yields on an average 2622 kg/ha of grain...

A short duration high yielding Kudiraivali culture TNAU 43 was developed at the Department of Millets, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore and was released as CO (KV) 2 during 2009. It is a pureline selection from the Germplasm accession EF 79. This variety yields on an average 2622 kg/ha of grain...

Allele frequency changes resulting from conventionalrecurrent selection were monitored at 34 SSR locidistributed across all 7 linkage groups using full-sibprogenies (50 each) from released pearl millet openpollinatedvariety CO (Cu) 9 and its four immediateprogenitor populations (ICMP 87750, ICMP 91751,ICMP 93752 and UCC 23). Agronomic performance o...

The present study was carried out in pigeonpea (Cajanus cajan (L.) Millsp.) at Millet Breeding Station, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore, during June 2003, to identify the resistant sources for spotted pod borer and blister beetle. The study of spotted pod borer resistance or tolerance was carri...

The present study was carried out in pigeonpea [Cajanus cajan (L.) Mill sp.] at Millet Breeding Station, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore. Inbreeding depression for yield per se does not seem to be significant in pigeonpeas and dominance plays a major role compared to additive genes for yield pe...

Exploitation of hybrid vigour is quite possible in cross-pollinated crops. However, pigeonpea is a grain legume crop with a moderate level of cross-pollination (20-70%), which is mainly aided by insect pollinators. As a first step, hybrids based on genetic male sterility (GMS) were developed in pigeonpea, but the hybrid seed production technique is...

A high yielding and early maturing panivaragu culture TNAU 143 was developed at Department of Millets, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore and released as CO(PV) 5. It is a derivative of the cross involving PV 1403 x GPUP 21. It yields on an average 2381 kg/ha of grain and 6675 kg/ha of straw under...

In a pot culture experiment, ten genotypes of cowpea (Vigna unguiculata (L.) walp.) were screened for drought tolerance. After partial emergence of the first trifoliate leaf, drought was created at vegetative, flowering and pod filling stages by withholding the water application. Based on the reduction in plant moisture content at various stages, t...

The present study was carried out in pigeonpea [Cajanus cajan (L.) Millsp.] to identify the resistant sources for spotted pod borer and blister beetle. The study of spotted pod borer resistance or tolerance was carried out in open field conditions without spraying any insecticide. The screening was done on seven parents and twelve F1's hybrids base...

An extra early duration Avarai (Lablab purpureus var typicus - Garden bean) culture COLT 22/1 was developed by hybridization and pedigree breeding. It is a hybrid derivative of CO 9 x CO 4, an extra early duration, dwarf, erect and high yielding culture. It matures in 70 - 75 days as vegetable crop and 80 - 85 days as seed crop. The culture COLT 22...

Interspecific hybridization between five Canajus cajan genotypes viz., ICPL 87, CORG 9302, CORG 5, TAT 93-47 and AS 46 and the wild species C. cajanifolius was attempted. Successful pod set was observed in direct crosses involvingC. cajan as ovule parent and C. cajanifolius as pollen parent while the reciprocal crosses failed to set pods. The only...

Hence an experiment was conducted to screen fifteen germplasm lines for their resistance/tolerance to podborer under natural infestation in pesticide-free open field. To asses the degree of infestation 250 green pods were randomly picked up from all the plants of each plot. The pods damaged by gram podborer were detected by the presence large bored...

With the objectives to constitute a core collection the available 646 germplasm accessions of greengram were characterized for 18 quantitative traits and 37 qualitative traits listed in NBPGR minimal descriptor. Two multivariate statistical approaches viz., Hierarchical cluster analysis and Principal component analysis were utilized for forming a c...

A high yielding and early maturing panivaragu culture TNAU 143 was developed at Department of Millets, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore and released as CO(PV) 5. It is a derivative of the cross involving PV 1403 x GPUP 21. It yields on an average 2381 kg/ha of grain and 6675 kg/ha of straw under...

The legume pod borer, Helicoverpa armigera is one of the most divesting pests of pigeon pea. And it is an important biotic constraint to pigeon pea production worldwide. In recent years, development of Helicoverpa armigera populations resistant to insecticides has further hampered the control of measures. Therefore, identification and utilization o...

In the present research, we studied the presence of phenolic acids in seeds of pigeon pea. Phenols extracted from seeds were analyzed by HPLC. Among the three phenols identified (Benzoic acid, Paranitro phenol and Orcinol) in different generations of pigeon pea. Concentrations of phenols were higher in tolerant cultivar (ICP 13201) than susceptible...

The present study was undertaken to identify RAPD marker associated with Mungbean Yellow Mosaic Virus (MYMV) resistance in mungbean ( Vigna radiata (L.) Wilczek) cross ML 267 x CO 4. Bulked segregant analysis was employed to identify RAPD markers linked to MYMV resistant gene of ML 267. A total of 149 random decamers were surveyed for identificatio...

The cowpea culture COCP 702, a 20 kR gamma ray mutant derivative of CO 4 tested in station and district trials and as Co Vu 702 in the All India Coordinated trials of Arid legumes was released as a new cowpea variety CO(CP) 7 for general. cultivation in Tamil Nadu. The culture COCP 702 recorded an average yield of 900 kg/ha registering 18.9, 19.3 a...

2 SUMMARY The genetic variation among 52 accessions of Vigna species that include 15 accessions of V. unguiculata, 15 accessions of V. mungo, 19 accessions of V. radiata, and one accession each of the wild species V. aconitifolia, V. trilobata, and V. radiata var sublobata belonging to the subgenera Ceratotropis and Vigna was investigated using mor...

The greengram genotyope COGG 902 is a hybrid derivative of WGG 37 x CO 5. The culture recorded an average seed yield of 982 kg ha" with 25.4, 20.4 and 20.7 per cent increased yield over Vamban 1 (783 kg ha'), CO 5 (815 kg ha¹) and KM 2 (814 kg ha) respectively. It showed resistance to yellow mosaic virus. It is suited for sowing during June-July, S...

Two varieties of Vigna radiata, one variety of Vigna mungo and the hybrids produced by crossing these species, with the former as female parent, were used to study the ovipositional preference of bruchids. Mean number of eggs per seed was recorded at the interval of twenty four hours for six days. Urdbean was more preferred for oviposition than mun...

The high yielding red gram hybrid CoH 2 was developed using the genic male sterile line ms Co 5 as female parent and ICPL 83027 as male parent. This hybrid is photoinsensitiv and matures in 120 to 130 days. It gives an average yield of 1050 kg/ha and is also suited for rainfed and irrigated conditions.

A downy mildew resistant, high yielding maize hybrid CoH2 has been released for general cultivation in Tamil Nadu. The hybrid has a duration of 95-100 days and 10-15 days earlier than Ganga.5 and Co.1. Under irrigated conditions, the hybrid yields 5472 kg of grain per hectare which is 41.9 and 66.6 per cent more yield than Ganga.5 and CoHI respecti...

A new high yielding sorghum hybrid X 7555 was released as CoH 4 by Tamil Nadu Agricultural University, in 1991. It is a single cross hybrid of the cross 296 A x TNS 30, maturing in 105 days, and grows to height of 215 cm. On an average it gives 3707 kg of grain yield and 16 tonnes of fodder/ha under irrigated condition. This hybrid is recommended f...

To evolve a high yielding castor variety with resistance to jassids. Crosses were effected between SA. 2 (high yielding & short duration) and S. 248-2 (A Maharastra variety with triple bloom). A derivative x1158-32 was identified and evaluated under rainted condition in different research centres as well as in farmer's holdings. The yield data show...

Genotypic differences for tolerance to salinity at different growth stages were reported. Germination and seedling growth may be reliable parameters for rapid screening against salinity. Nine genotypes of chickpea were subjected to salinity stress during germination and seedling growth \,ISing different concentrations of salt solution. The germinat...

Twenty-seven pigeonpea genotypes consisting of 18 hybrids and their parents were evaluated for 11 traits to quantify the genetic diversity existing among them by using Mahalanobis D 2 statistics. The genotypes were grouped into 14 clusters. Cluster size varied from single genotype (Cluster IX to XIV) to four genotypes (Clusters I and II). In genera...

The present study aims to reveal the importance of some quantitative traits and genetic variability existing in the 230 finger millet germplasm accessions. The coefficient of variation at phenotypic (PCV) and genotypic (GCV) levels were high for productive tillers per plant and moderate for the traits viz., days to 50 per cent flowering, plant heig...