National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
An investigation was carried out to explore relationship, if any between combining ability and stability of 27 maize inbred lines. To obtain the general combining ability effects 27 newly developed inbred lines were crossed with four testers in a line × tester mating design and the progenies along with parents were evaluated for three seasons namely summer-2014, rainy season-2014 and summer-2015. The data were recorded on seven quantitative traits (QTs). The general combining ability (GCA) effects of lines and testers for seven QTs were estimated. The data on seven QTs of the parents (lines and testers) across three seasons were used to estimate AMMI stability value (ASV) and stability index (SI). The correlation coefficients of GCA effects with the estimates of ASV, and SI of were estimated and tested for their significance using t- test. The correlation coefficients of GCA effects of lines and testers with estimates of ASV and SI scores for all QTs were non-significant. The results indicated lack of any relationship between gca effects of inbred lines and their stability estimates. It is possible that gca effects and stability of inbred lines could be under independent genetic control.
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