Vol. 7, Issue 6 (2019)
Determination of combining ability for seed cotton yield and its attributes in American cotton (Gossypium hirsutum L.)
Author(s): UU Vaghela, GO Faldu, RJ Panchal and KN Patel
Abstract: The prime objective of this study was to the estimate the general combining ability of the parents and specific combining ability of hybrids for the development of high yielding cultivars in cotton (Gossypium hirsutum L.). A line x tester analysis was carried out by using four lines and eight testers and their resulting 32 hybrids during 2018-19 in randomized block design with three replications. Whereas, both GCA and SCA variances were found significant for days to 50% flowering, sympodia per plant and bolls per plant, which indicated that both additive as well as non-additive types of gene actions were important in the inheritance of these traits. The estimates of GCA effects of parents indicated that the GSHV 199 and CPD 1602 were good general combiner. The top five crosses of seed cotton yield, which showed positive and significant SCA effects viz.,GSIV 298 x RAH 1071, GSIV 298 x RHC 1217 (1.07), GSHV 199 x RHC 1217 (-0.04), GISV 319 x PBH 42 (-0.09) and GSHV 199 x RHC 1217 (0.66) and involved the combinations of either goodx good, good x poor, average x good, average x average and poor x poor general combining parents.
Pages: 1118-1122 | 304 Views 72 Downloads
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How to cite this article:
UU Vaghela, GO Faldu, RJ Panchal, KN Patel. Determination of combining ability for seed cotton yield and its attributes in American cotton (Gossypium hirsutum L.). Int J Chem Stud 2019;7(6):1118-1122.
