Vol. 7, Special Issue 1 (2018)
Combining ability studies for yield and water use efficiency related traits in groundnut (Arachis hypogaea L.)
Author(s): HC Sowmya, DL Savithramma and HC Latha
Abstract: The present investigation was carried out at University of Agricultural Sciences, GKVK, Bengaluru. Line × Tester analysis was carried out using 8 lines and 4 testers to produce 32 F1’s. The variances due to SCA were found to be higher than GCA variances for all the eleven characters studied, indicating the predominance of non-additive gene action in the inheritance of the characters studied. Three lines GKVK 16, GKVK 8B and GKVK 5 and only one tester KCG 2 were appears to be good general combiners to produce high water use efficient genotypes as these have shown significant GCA effects in desirable direction for both SCMR and SLA. Three lines GKVK 16, GKVK 8B, GKVK 5 and only one tester KCG 2 were found to be good general combiners for both pod and kernel yield per plant. No single line or tester was found to be a good general combiner for all the 11 characters studied. However, lines GKVK 16, GKVK 5 and GKVK 8B were the best combiners which scored significant positive gca effects for most of the characters studied and among testers KCG 2 was the best combiner compared to rest. The crosses GKVK 16 × ICGV 91114, GKVK 6 × KCG 2, GKVK 8B × GPBD 4 and GKVK 16 × KCG 2 were recognized as best cross combinations for most of the traits studied.
How to cite this article:
HC Sowmya, DL Savithramma and HC Latha. Combining ability studies for yield and water use efficiency related traits in groundnut (Arachis hypogaea L.). 2018; 7(1S): 1722-1726.