芥酸,超过2%,在芥末籽油被认为是不健康的食用油,以及人类食用的抗营养。孟加拉国现有的芥菜品种含有40-48%的芥酸,这是国家营养的一个大问题,以及粮食安全和安全。因此,为了提高现有品种的种子油质量,以7×7半Diallel方式与油菜级品系杂交了六个流行的芥菜芥菜品种,并评估了开发的21个F1杂种的产量贡献性状,和脂肪酸组成。发现了具有显著变化的变量,虽然天到siliquae成熟,植物高度,第一次开花的日子,和每个siliquae种子具有中等的狭义遗传力。估计的基因作用表明,显性或显性基因作用在控制性状方面更为突出。父母,P1,P3和P4被发现是早熟和短物候的最佳一般组合,而P2和P7被发现是产量归因性状的最佳一般组合。此外,杂种P1×P4,P1×P6,P2×P7,P4×P6和P3×P5由于其最佳的特异性结合能力而被选为有希望的杂种,和对产量贡献性状的期望杂种优势效应。此外,显著下降,平均30-40%,在芥酸中,但是在杂种中发现油酸增加了大约20-25%,其中杂种P1×P6-S1,P5×P6-S2和P5×P6-S4表现出更好的稳定性指数。总的来说,获得的结果表明,杂种,viz.P1×P5,P1×P6,P2×P3,P2×P7,P4×P6,P5×P6,P6×P7早熟前景看好,高产,减少芥酸,和高油酸含量。
Erucic acid, more than 2 %, in mustard seed oil is considered unhealthy as edible oil, and also anti-nutritional for human consumption. The existing mustard varieties of Bangladesh contain 40-48 % erucic acid, which is a big concern for the country\'s nutritional, and food security and safety. Hence, to improve the seed oil quality of the existing variety, six popular cultivars of Brassica juncea mustard were crossed with a canola-grade line in 7 × 7 half diallel fashion, and the developed 21 F1 hybrids were assessed for yield contributing traits, and fatty acids composition. Variables with significant variations were found, while days to siliquae maturity, plant height, days to first flowering, and seeds per siliquae have moderate narrow sense heritability. The estimated gene action indicated that dominant or over-dominant gene action was more prominent in governing the traits. The parents, P1, P3, and P4 were discovered the best general combiners for early maturity and short phenology, whereas P2 and P7 were found to be the best general combiners for yield-attributing traits. Moreover, the hybrids P1 × P4, P1 × P6, P2 × P7, P4 × P6 and P3 × P5 were chosen as the promising hybrids due to their best specific combining ability, and desired heterotic effects on yield contributing traits. In addition, a significant decrease, on average 30-40 %, in erucic acid, but an approximately 20-25 % increase of oleic acid was found among the hybrids, in which the hybrids P1 × P6-S1, P5 × P6-S2 and P5 × P6-S4 demonstrated a better stability index. Overall, the obtained findings suggested that the hybrids, viz. P1 × P5, P1 × P6, P2 × P3, P2 × P7, P4 × P6, P5 × P6, and P6 × P7 were promising based on their early maturity, high-yielding, reduced erucic acid, and high oleic acid contents.