Vol. 11, Issue 5 (2022)

Author(s):
Omprakash and Jai Prakash Lal

Abstract:
Present investigation was carried out during Kharif 2017 at Research Farm of Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh to study the genetic variability in the cross Azucena x BPT-5204 under moisture stress (rainfed) and moisture non stress (irrigated) conditions grown in PVC pipes because root traits were also the part of observations. The experiment was comprising of P₁ (Azucena), P₂ (BPT-5204) and 38 F₂ plants. Mean phenotypic performance of F₂ individuals were within the mean values observed for both the parents under both the environments except number of panicle bearing tillers and number of grains per panicle. Analysis of variance revealed the significant differences for most of the trait studied. Highest PCV was recorded for grain yield under both the environments. Highest GCV was observed for grain yield under moisture stress condition but it was highest for root volume followed by grain yield under moisture non stress condition indicating the significant variation present for grain yield under both the regimes. Higher heritability along with high genetic advance per cent of mean (GAM) were recorded for penicle bearing tillers, root to shoot ratio and root volume under irrigated condition. Similarly, higher heritability along with high genetic advance per cent of mean (GAM) were observed for plant height, number of panicle bearing tillers, root to shoot ratio and root volume under rainfed condition. Based on these observations, it may be concluded that selection based on number of panicle bearing tillers, root to shoot ratio and root volume will be rewarding under both the conditions.