Estimation of Genetic Variability, Heritability and Genetic Advance for Essential Oil Yield and Related Traits in Genus Ocimum

Advances in Crop Science and Technology Pub Date : 2018-03-30 DOI:10.4172/2329-8863.1000350

S. Smita, Kishori Rl

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引用次数: 9

Abstract

Assessing variability is fundamental to identify the most important traits in Ocimum improvement program. The objective of the present study was to estimate variability, heritability and genetic advance based on twelve morphological characters of Ocimum. The experiment was conducted in 2015/16 main cropping season at one location by using randomized complete block design with three replications. The results revealed highly significant differences (P<0.01) among genotypes for all characters considered. The phenotypic coefficient of variation (PCV) for all character was higher than genotypic coefficient of variation (GCV). The estimation of broad sense heritability ĥ2(BS)% was observed to be lower than those of broad sense heritability ĥ2(BS)% for all characters. Genetics advance was recorded as maximum for eugenol content (96.65). Highest heritability in broad sense ĥ2(BS)% recorded for days to maturity (99.46). On the basis of study accessions G-4, G-7, G-9, G-11, G-18 and G-25 were identified high oil of better quality. These accessions may be exploited for commercial cultivation.

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精油产量及相关性状的遗传变异、遗传力及遗传进展

评估可变性是识别Ocimum改进计划中最重要特征的基础。本研究的目的是基于12个形态特征来估计其变异度、遗传力和遗传进展。试验于2015/16主季在同一地点进行，采用随机完全区组设计，3个重复。结果表明，各性状基因型间差异极显著(P<0.01)。所有性状的表型变异系数(PCV)均高于基因型变异系数(GCV)。所有性状的广义遗传力ĥ2(BS)%估计值均低于广义遗传力ĥ2(BS)%估计值。丁香酚含量遗传进步最高(96.65)。最高广义遗传率ĥ2(BS)%记录的成熟期天数为99.46。在研究资料的基础上，确定了G-4、G-7、G-9、G-11、G-18和G-25为优质优质油。这些材料可用于商业种植。

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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Advances in Crop Science and Technology

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