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 di.fferent agro climatic domains.
Grain yield of the crop dijfered significantly among the genotypes and locations in
coordinated varietal trial in 199912000. Highest and lowest grain yield was produced at
Surkhet (1238 kgha-1) and Nepalgunj (667 /cgha-1
) respectively. Genotype IT 86D-792
(1205/cgha-1) had significantly higher grain yield across the location as compared to both
Aalcash (971 /cgha-1) and Prakash (917 /cgha-1
). Average grain yield of all genotypes was
found the highest at Rampur (751k§ha-1 during 2000101). Genotypes IT86 D-792 (871
kgha-1) and IT 83D-442 (805 lcgha-) produced significantly higher yield than Prakash
(524 kgha-1
). Pooled grain yield over three locations (NGLRP Ramur, RARS Nepalgunj
and ARS Surkhet) planted as post rainy season indicated that highest yield was produced
by IT 86 D-792 (972 kgha-1
) Average seef! weight of IT 86D-792 (16.87 g) was higher
than Aakash (13.2 g) and Prakash (12.42 g). Combined analysis over year and locations
showed that genotype IT 86D-792 (1259 kgha-1
) yielded the highest grain yield as justified
from farmers field trial. So. this genotype is the candidate for release.

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 di.fferent agro climatic domains.
Grain yield of the crop dijfered significantly among the genotypes and locations in
coordinated varietal trial in 199912000. Highest and lowest grain yield was produced at
Surkhet (1238 kgha-1) and Nepalgunj (667 /cgha-1
) respectively. Genotype IT 86D-792
(1205/cgha-1) had significantly higher grain yield across the location as compared to both
Aalcash (971 /cgha-1) and Prakash (917 /cgha-1
). Average grain yield of all genotypes was
found the highest at Rampur (751k§ha-1 during 2000101). Genotypes IT86 D-792 (871
kgha-1) and IT 83D-442 (805 lcgha-) produced significantly higher yield than Prakash
(524 kgha-1
). Pooled grain yield over three locations (NGLRP Ramur, RARS Nepalgunj
and ARS Surkhet) planted as post rainy season indicated that highest yield was produced
by IT 86 D-792 (972 kgha-1
) Average seef! weight of IT 86D-792 (16.87 g) was higher
than Aakash (13.2 g) and Prakash (12.42 g). Combined analysis over year and locations
showed that genotype IT 86D-792 (1259 kgha-1
) yielded the highest grain yield as justified
from farmers field trial. So. this genotype is the candidate for release.