KL Cheema, S. Sardar, MA Amin, A. Hussain, J. Iqbal, A. Batool, T. Munir, S. Akbar, I. Rasool, A. Aziz, T. Majeed
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引用次数: 0
摘要
基因变异性是开发作物新品种和加强研究所作物育种计划的先决条件。为此,费萨拉巴德豆类研究所(Pulses Research Institute Faisalabad)和阿尤布农业研究所(Ayub Agricultural Research Institute)在 2020-2021 年 Rabi 季节对 19 个鹰嘴豆基因型的遗传变异性进行了评估。采用 D2 统计法对数据进行了分析,测得的基因型各种形态性状的变异系数、范围和标准偏差表达了显著的变异值。通过主成分分析从数据中提取了七个主成分(PC)。前两个成分的特征值大于 1,表明这些成分在遗传变异中占主要份额。数据还表明,每株豆荚数(0.47)和根长(0.48)以及株高(0.48)和根长分别对 PC1 和 PC2 有最大的正贡献。在第 1V 组中,具有较高产量潜力的基因型被分组,因此第 1V 组的成员(D19025、D-19029、D-19036 和 Bittle-2016)具有较高的谷物产量和足够的遗传多样性,可纳入鹰嘴豆的遗传改良计划。
STUDY OF GENETIC VARIABILITY IN CHICKPEA GERMPLASM AND ITS CONTRIBUTION TOWARDS GENETIC ADVANCEMENT
Genetic variability is a pre-requisite to develop novel varieties in crop plants and to strengthen crop breeding programs at Research institutes. For this purpose, the genetic variability of nineteen chickpea genotypes was evaluated at Pulses Research Institute Faisalabad, Ayub Agricultural Research Institute during the Rabi season 2020-2021. The data were analyzed using D2 statistics, measured coefficient of variation, range, and standard deviation of various morphological traits of genotypes expressed significant value of variability. Seven principal components (PC) were extracted from the data by principal component analysis. Eigenvalues of the first two components were recorded>1 pointing out that these components have a major share in genetic variability. Data also expressed that no. of pods per plant (0.47) and root length (0.48) and plant height (0.48) and root length have the highest positive contribution of PC1 and PC2 respectively. In cluster - 1V genotypes with higher yield potential were grouped, therefore the members of cluster- 1V (D19025, D-19029, D-19036, and Bittle-2016) possessing higher grain yield along with sufficient amount of genetic diversity that can be incorporated into the genetic improvement program of chickpea.