Varietal investigation on cowpea in Nepal
2003
Yadav, N.K. | Yadav, D.L.(National Grain Legumes Research Program, Rampur, Chitwan (Nepal))
Observation nursery, initial evaluation trial, coordinated varietal trial, farmers field trial on cowpea were conducted during 1999/2000 and 2000/01 to select early maturing, high yielding and disease resistant/tolerant genotypes for different agro climatic domains. Grain yield of the crop differed significantly among the genotypes and locations in coordinated varietal trial in 1999/2000. Highest and lowest grain yield was produced at Surkhet and Nepalgunj respectively. Genotype IT 86D-792 had significantly higher grain yield across the location as compared to both Aakash and Prakash. Average grain yield of all genotypes was found the highest at Rampur. Genotypes IT86 D-792 and IT83 D-442 produced significantly higher yield than Prakash. Pooled grain yield over three locations planted as post rainy season indicated that highest yield was produced by IT86 D-792. Average seed weight of IT86 D-792 was higher than Aakash and Prakash. Combined analysis over year and locations showed that genotype IT86 D-792 yielded the highest grain yield as justified from farmers field trial. So, this genotype is the candidate for release.
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