International Journal of Chemical Studies
Vol. 9, Issue 3 (2021)
Generation mean analysis of interspecific diploid cotton crosses
Author(s): YV Naghera, KV Vadodariya and RK Patel
Abstract: The magnitude of various gene actions governing various traits in interspecific diploid cotton crosses were traced out by using the generation mean analysis. Six generations (P1, P2, F1, F2, BC1 and BC2) each of the two crosses viz, GBhv-302 × PA-812 and GBhv-302 × ARBa-1502 were utilized. The significance of one or more simple scaling test as well as χ2 values of joint scaling test indicated presence of non-allelic gene interactions for most of the traits. The magnitude of additive type of gene actions were found to be lower that dominance gene interactions in most of the characters. The values of dominance gene actions were higher for days to first flower, seed index and lint yield per plant. Epistasis component of gene actions like additive × additive (I) and dominance × dominance (l) were found to be involved in inheritance of days to first flower, plant height, leaf area, seed index, lint yield per plant and oil percentage. Duplicate type of epistasis was observed for all traits in one or both crosses, while complementary epistasis was present for plant height in cross GBhv-302 × ARBa-1502 and for lint yield per plant in cross GBhv-302 × PA-812.
Pages: 174-177 | 85 Views 6 Downloads
How to cite this article:
YV Naghera, KV Vadodariya, RK Patel. Generation mean analysis of interspecific diploid cotton crosses . Int J Chem Stud 2021;9(3):174-177.