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Vol. 10, Issue 8 (2021)

Combining ability of maize inbred lines for yield and morpho-agronomic traits

Author(s):
Bal Krishna, Birender Singh, Shyam Sundar Mandal, Kumari Rashmi and Tushar Ranjan
Abstract:
Thirty-nine crosses produced from 13 lines and 2 testers using Line×Tester mating design were evaluated following RBD design. The objectives of this study were to: (i) determine the type of gene action in expiration of traits and (ii) identify inbred lines and crosses with good combining ability for yield and other morpho-agronomic traits. Significant variation was observed among the hybrids (crosses) except days to 75% brown husk. Variance due to specific combining ability (SCA) was larger than general combining ability (GCA) for the all characters indicating the preponderance of non-additive gene action in the expression of various traits. Inbred lines L6 followed by L12, L9, L3, L8, L4 and tester T2 showed good combining ability for yield and some of the important yield-contributing characters, indicating that they could be good parental lines in hybridization programs. Based on the results, SCHs L1ÍT3, L5ÍT2, L8ÍT1, L2ÍT2, L3ÍT1, L4ÍT1, L9ÍT3, L13ÍT2, L11ÍT2, L9ÍT3, L6ÍT2, L3ÍT3 and L4ÍT2 exhibited high specific combining ability (SCA) effects for yield. These hybrids are recommended for further multi-locational evaluation to determine the stability of their performance.
Pages: 1520-1525  |  238 Views  111 Downloads


The Pharma Innovation Journal
How to cite this article:
Bal Krishna, Birender Singh, Shyam Sundar Mandal, Kumari Rashmi, Tushar Ranjan. Combining ability of maize inbred lines for yield and morpho-agronomic traits. Pharma Innovation 2021;10(8):1520-1525.

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