2024, Vol. 7, Special Issue 6

author(s)
V Ramesh Naik, C Venkata Ramana, L Naram Naidu, G Kranthi Rekha, A Rajani and M Paratpara Rao

abstract
The present investigation entitled “Genetic variability studies in F₃, F₄ and F₅ generations of okra (Abelmoschus esculentus (L.) cross VRO-6 x TCR-1674 under gangetic plains of Andhra Pradesh” was conducted at Horticultural Research Station, Lam, Guntur, Andhra Pradesh during, Summer-2022, Rabi-2022 and Summer-2023. The F₃, F₄ and F₅ generations of the cross VRO-6 x TCR-1674 were evaluated with the objective of selecting superior genotypes through pedigree method of selection for economically important traits and to assess the various genetic parameters for the okra crop improvement. The data from advanced generations were collected and statistically analysed to compute mean, range, phenotypic and genotypic coefficients of variance, heritability, expected genetic advance, genetic advance as per cent mean and genetic gain. The pedigree of the cross VRO-6 x TCR-1674 recorded the genetic gain from F₃ to F₄ and F₄ to F₅ generation;fruit yield per plant (4.46 and 2.62), number of fruits per plant (7.60 and 18.39), fruit length (6.08 and 2.41), fruit girth (6.93 and 3.42), fruit weight (8.82 and 10.04), number of seeds per fruit (4.02 and 0.29), test weight of seeds (2.82 and 3.72), ascorbic acid content fruits (7.45 and 1.26), shelf-life of fruits (13.89 and 12.54) respectively. Best promising plants were selected in F₅ generation and selfed for further preliminary yield trials.