Combing Ability Analysis for Quantitative Characters in Forage Maize (Zea mays L.)

Author: Nanavati J.I., Savdhariya S.J. and Suvatar V.K.

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Abstract

Combining ability for various quantitative traits viz., plant height, leaf length, leaf width, number of leaves per plant, leaf: stem ratio and green fodder yield per plant was studied through (5 × 10) line × tester mating design. Highly significant gca and sca variances for most of the traits indicated that sufficient variability existed for gca effect in the parents and that for the sca effect in the crosses. Higher and significant sca variances suggested a higher non-additive gene action for these traits. Parents IC 7701 among females and MA 4207 among males were found to be the best general combiners for green fodder yield per plant. The hybrids viz., IC 7701 × OM 6354, IC 130882 × GDRFG 1644, IC 130913 × OM 6357 and IC 130950 × OM 6345 were found to be the best specific crosses for green fodder yield per plant and, therefore, these crosses can be further exploited for selection of hybrids and transgressive segregants.

Keywords

Combining ability, green fodder yield, line × tester, maize, male, female, crosses

Conclusion

The female parent IC 7701 was found good general combiner for green fodder yield per plant as well as for leaf: stem ratio while the male parent, MA 4207 was a good general combiner for green forage yield. Among crosses, four hybrids viz., IC 7701 × OM 6354, IC 130882 × GDRFG 1644, IC 130913 × OM 6357 and IC 130950 × OM 6345 exhibited superior performance in terms of fodder yield

References

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How to cite this article

Nanavati J.I., Savdhariya S.J. and Suvatar V.K. (2024). Combing Ability Analysis for Quantitative Characters in Forage Maize (Zea mays L.). Biological Forum – An International Journal, 16(12): 61-64.