Genetic Variability, Heritability and Expected Genetic Advance of Yield and Yield Related Traits in Desi Type Chickpea (Cicer Arietinum L.) at Bule Hora, Southern Ethiopia

Taera Itana, Wassu Mohammed, Seltene Abady
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Abstract

Chickpea is one of most important pulse crops in Ethiopia. Despite its significance, the national average chickpea yield is low due to many constraints of which the unavailability of improved varieties for each growing and potential area. This research was conducted to evaluate genetic variability, heritability, and expected genetic advance of yield and yield related traits in chickpea genotypes. It was conducted at Bule Hora during 2022/23 cropping season that 36 Desi type of chickpea genotypes were evaluated using a 6 x 6 simple lattice design. The results of the analysis of variance showed the presence of significant variations among genotypes for nine characteristics. In this study, the phenotypic variance was higher than the genotypic variance for all the traits studied. However, the difference between phenotypic and genotypic variances was low, ranging from 0.05 to 5.46 for four traits, and the difference between phenotypic and genotypic coefficients of variation was <5% (1.89 to 4.32%) for six of nine traits. Furthermore, Phenotypic (PCV) and genotypic (GCV) coefficient of variations ranged from 5.32 to 41.77% and 3.43 to 37.45%, respectively. Heritability (H2) in broad sense and genetic advance as percent of mean (GAM) ranged from 23.91 to 80.40 and 5.89 to 69.18%, respectively. The estimates of GCV and PCV, H2 and GAM were high for number of pods per plant, seeds per plant in gram, and grain yield.
埃塞俄比亚南部 Bule Hora 的 Desi 型鹰嘴豆(Cicer Arietinum L.)产量及产量相关性状的遗传变异性、遗传率和预期遗传进展
鹰嘴豆是埃塞俄比亚最重要的豆类作物之一。尽管鹰嘴豆很重要,但由于受到许多因素的制约,全国鹰嘴豆平均产量很低,其中包括没有适合每个种植区和潜在种植区的改良品种。本研究旨在评估鹰嘴豆基因型的遗传变异性、遗传率以及产量和产量相关性状的预期遗传进展。研究于 2022/23 年种植季节在 Bule Hora 进行,采用 6 x 6 简单格子设计对 36 个 Desi 型鹰嘴豆基因型进行了评估。方差分析结果表明,不同基因型的九个特征存在显著差异。在本研究中,所有研究性状的表型方差均大于基因型方差。然而,表型方差和基因型方差之间的差异较小,四个性状的差异在 0.05 至 5.46 之间,表型变异系数和基因型变异系数之间的差异为 2),广义遗传进展占平均值的百分比(GAM)分别为 23.91 至 80.40 和 5.89 至 69.18%。在单株结荚数、单株种子克数和谷物产量方面,GCV 和 PCV、H2 和 GAM 的估计值较高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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