Green Global
Foundation   Journal
...an emerging window for scientific research and publication across the globe

GENETIC DIVERSITY OF MORPHOLOGICAL TRAITS OF BRASSICA NAPUS PARENTS AND F7 FAMILY LINES (Pages : 24 - 29)

The research was conducted to test the performance of twelve selected F7 family lines evolved from the cross products of two Brassica napus varieties in comparing with their parents affiliated to some yield contributing characters. The characters, days to 50% germination, number of primary branches per plant, days to 50% flowering, average pollen fertility (%), plant height at maturity, number of siliqua per plant, beak length, number of seeds per siliqua, seed yield per plant were studied. There were significant variations among the varieties for all the characters except pollen fertility. But highly significant variations were found among the family lines and their parents in respect to morphological characters. The insignificant variation among genotypes tested for some traits denoted that, although the cross products are from two different parents, but have possibly been reached good balance due to high selection pressure in previous generations for types having better combinations. The family line 459 belonging to ED (BINA sarisha-5 × BINA sarisha-4) and family line 111 belonging to DE (BINA sarisha-4 × BINA sarisha-5) were found to be better in performance and have unveiled near close trails with parents in respect to the aforementioned traits. In general, genotypic correlation coefficients were higher than their corresponding phenotypic ones. Grain yield per plant had significant positive correlation with days to 50% flowering, average plant height at maturity, average number of siliqua per plant. Path coefficient analysis suggested that number of seeds per siliqua contributed maximum to seed yield through positive direct effect followed by average plant height.Download