Mudang Pullo and H.P. Chaturvedi*
Department of Genetics and Plant Breeding, School of Agricultural Sciences, Nagaland University, Medziphema- 797106
Email: hpchaturvedi68@gmail.com
Received-06.07.2023, Revised-17.07.2023, Accepted-27.07.2023
Abstract: The present study encompassed 22 lentil genotypes, examining seed and seedling vigor traits during Kharif-2021 employing a completely randomized design (CRD) with three replications at the laboratory of Department of Genetics and Plant Breeding, School of Agricultural Sciences, Nagaland University. ANOVA highlighted significant variability in lentil genotypes for seed and seedling vigor traits at 1% and 5% probabilities. Analyzing these genotypes across eleven vigor-related traits revealed characteristic diversity, emphasizing genetic heterogeneity and substantial variability. Coefficient of Variation (C.V.) indicated dispersion, notably in root length (102.41%) and seedling vigor index II (78.21%). Standard Error (S.E.) signaled precision, while Critical Difference (C.D.) facilitated trait differentiation. Genotypic and phenotypic variances were highest for fresh shoot weight (𝜎²g = 1937.37, 𝜎²p = 6711.47), followed by fresh root weight (𝜎²g = 332.54, 𝜎²p = 654.11), and shoot length at 20th day (𝜎²g = 193.93, 𝜎²p = 465.05). Seedling vigor index I (𝜎²g = 182.97, 𝜎²p = 579.91), germination percentage (𝜎²g = 100.79, 𝜎²p = 399.35), and others also exhibited notable variance. This study unveiled diverse PCV and GCV values across traits. PCV ranged from 13.12% to 109.27%, with root length at 20th day exhibiting the highest (109.27%). GCV ranged from 8.34% to 65.41%, with fresh root weight displaying the highest GCV (65.41%). Heritability ranged from 11.32% to 50.84%, with traits showing moderate heritability and substantial genetic advance including shoot length, fresh root weight, and seedling vigor indices. Traits with low heritability and high genetic advance comprised germination percentage and shoot weight.
Keywords: Lentil, genetic variability, heritability, genetic advance, correlation
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