Frequency of heterotic hybrids in relation to general combining ability of parents in sweet corn

Author:

Madhunapantula Vani Praveena1,Talekar Sidramappa Channappa1,Kachapur Rajashekhar Mahantaswami1,Salakinkop Shiddappa Ramappa1,Lal Mohan2,Naidu Gopalakrishna1

Affiliation:

1. University of Agricultural Sciences, Dharwad, Dharwad, Karnataka, India

2. CSIR-NEIST, Jorhat, Assam, India

Abstract

The success of developing prominent hybrids directly depends on the selection of parents with good combining ability which can transfer desirable genes with additive effects to their progeny. The data of 42 hybrids generated using 7 × 7 full diallel design; their seven parents along with three check hybrids were subjected to combining ability analysis from the experiment that was carried out during rainy season 2019. The analysis of variance showed significant general combining ability, and specific combining ability mean sum of squares for all the thirteen characters studied. It is obvious from the results that three lines (SC Sel 2, SC Sel 1 and SC Sel 3) showed high overall general combining ability status, suggesting these lines as good general combiners across traits. Eighteen hybrids had high overall specific combining ability status, while nearly 52% (22 hybrids), 57% (24 hybrids) and 47% (20 hybrids) of crosses showed high overall mid-parent, better-parent and standard heterosis. The unique superiority of crosses involving high overall general combiner parent in the crosses highlighted the importance of using such parents to realize high heterotic crosses. A non-linear relationship between high overall specific combining ability status and heterotic status of hybrids was noticed. The probability of obtaining a cross with high standard heterosis was more with employing parents with high general combining ability status.

Funder

Indian Council of Agriculture Research, New Delhi

Publisher

PeerJ

Subject

General Agricultural and Biological Sciences,General Biochemistry, Genetics and Molecular Biology,General Medicine,General Neuroscience

Reference51 articles.

1. Combining ability in grain yield and other related traits of sweet corn (Zea mays sacharata L.) in Syria;AL AbdAlhadi;International Journal of Plant Breeding,2013

2. Fallacy behind the use of modifed line × tester design;Arunachalam;Indian Journal of Genetics,1974

3. Evaluation of diallel crosses by graphical and combining ability methods;Arunachalam;Indian Journal of Genetics and Plant Breeding,1976

4. Are multiple cross-multiple pollen hybrids’ an answer for productive populations in Brassica campestris var.‘brown sarson’?;Arunachalam;Theorotical and Applied Genetics,1979

5. Gene action, heterotic patterns, and inter-trait relationships of early maturing pro-vitamin A maize inbred lines and performance of testcrosses under contrasting environments;Badu-Apraku;Agronomy,2021

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