Selection of elite genotypes for yield and associated traits in F2:3 families of interspecific crosses in Brassica species

Interspecific crosses of brassica species were evaluated to identify desirable genotypes for yield and associated traits. parent al species included brassica napus (dunkled,maluko,line a-20-20),b. campestris (lines 1203 and 2163),b. carinata (peela raya),and b. juncea (lines pr-64 and 89111-1). all traits were segregated in f2 population. all parameters were decreased in f3 in comparison to f2 population,indicating higher response of the crosses to inbreeding depression (0- 85%). a reduction in height (12-27%),primary branches (18-35%),pods main raceme-1 (19-35%),seed pod-1 (10-31%),pod length (14-28%),100-seed weight (5-28%) and seed yield plant-1 (14-35%) of f3 population was recorded as compared to f2. heritability estimates were low to medium (50-70%) for primary branches,medium to high (70-80%) for plant height,pod length,seeds pod-1,and seed yield plant-1 while low-medium-high for pods raceme-1 and 100-seed weight. it was concluded that selection for one of these characters would be beneficial for the others also. f3 population of maluko × 1203 produced the maximum silique main raceme-1,seeds silique-1,silique length and 100-seed weight. peela raya × pr-64 produced the maximum primary branches plant-1,while 2163 × 89111-1 was the best for seed yield plant-1 and plant height in f3 as compared to the f2 population.