Vol. 12, Issue 3 (2023)

Author(s):
Mahaveer Prasad Ola, SK Jain, Rekha Choudhary, SS Punia, Manohar Ram and Naveen Chandra Pant

Abstract:
An experiment was conducted in chickpea to study of gene effects (through generation mean analysis), involving six generations (P₁, P₂, F₁, F₂, B₁ and B₂) of each of the three crosses namely RSG-807 × RSG-895, RSG-895 × HC-5 and RSG-974 × Avrodhi. This experiment was grown in compact family block design with three replications under two different environments viz., timely (1^st November) and late (1^st December) sown conditions during rabi 2021-22 at Rajasthan Agricultural Research Institute, Durgapura, Jaipur (SKNAU, Jobner). The generation × environment interaction was found significant in all the crosses. Significant differences were also observed among the generations within cross in all the crosses under both the conditions. Out of four individual scaling tests, at least one scale was found significant in all three crosses under both the conditions. The significant value of ‘m’ component of gene effect was observed under studied in all the crosses. The magnitude of non-fixable gene effects (dominance, additive x dominance and dominance x dominance) was found higher than fixable gene effects (additive and additive x additive) for plant height in all three crosses under both the conditions. Therefore, selection in early segregating generation will be not effective.