Sanjay H. B, S. Chaturvedi, Harish J., Lakshmeesha R., Shailendra Kumar, Dilip Panwar
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引用次数: 0
摘要
利用 PPV 和 FRA 提供的 DUS 指南,对约 550 份鹰嘴豆种质进行了 20 个形态特征的评估。并利用直接和间接选择参数确定产量和产量属性之间的关系。在 20 个 DUS 性状中,7 个性状为二态性,10 个性状为三态性,其余 3 个性状为多态性。在 50%开花天数、成熟天数、小叶大小、每株荚果数、每株荚果种子数、主枝、花序梗长度、株高、副主枝、100 粒种子重量、每株种子产量方面,各基因型之间均存在显著的遗传变异。二次分枝、每株荚数、每荚种子数、100 粒种子重量和种子产量的 PCV、GCV、遗传率和遗传进展均较高。相关性研究表明,种子产量与小叶大小、单株荚果数、单株荚果种子数、主枝、花序梗长度、株高、副主枝、100 粒种子重量呈显著正相关。以种子产量为因变量的路径系数分析表明,每株荚数对种子产量的直接影响最大(0.68),其次是百粒种子重量(0.561)和每荚种子数(0.42)。相关分析和路径分析均表明,每株豆荚数和 100 粒种子重量是种子产量的主要直接影响因素。
Characterization of Chickpea Genotypes for Qualitative and Quantitative Traits in the Bundelkhand Region
About 550 germplasm accessions of chickpea were undertaken to evaluate 20 morphological traits using DUS guidelines given by PPV & FRA. And they are used to determine the relationships among yield and yield attributes using direct and indirect selection parameters. Out of 20 DUS traits, seven traits were dimorphic, 10 traits were found trimorphic and the remaining three traits showed polymorphism. Significant genetic variations were observed among the genotypes for days to 50% flowering, days to maturity, leaf-let size, number of pods per plant, number of seeds per pod, primary branches, peduncle length, plant height, secondary branches, 100 seed weight, seed yield per plant. High PCV, GCV, heritability and genetic advance are obtained for secondary branches, pods per plant, seeds per pod, 100 seed weight and seed yield. Correlation studies revealed that seed yield was positively and significantly correlated with leaf-let size, number of pods per plant, number of seeds per pod, primary branches, peduncle length, plant height, secondary branches, 100 seed weight. The path coefficient analysis based on seed yield, as a dependent variable, showed that the number of pods per plant had the greatest direct effect on seed yield (0.68) followed by 100 seed weight (0.561) and the number of seeds per pod (0.42). Both correlation and path analysis indicated that pods per plant and the 100 seed weight were the major direct contributors to seed yield.