Estimation of Heterosis and Combining Ability in Single Cross Hybrids Developed from Newly Derived Inbred Lines of Maize (Zea Mays L.)  

Udaykumar Kage1 , M C Wali2 , C P Mansur4 , S I Harlapur5 , Deepa Madalageri3 , Chandrashekat Angadi1 , Anilkumar G S1 , Mahesh Pujar1 , Netra Hiremath1
1.Department od Genetics and Plant Breeding, Univarsity of Agricultural Sciences (UAS), Dharwad, India;
2.AICRP on Maize, ARS, Arabhavi, UAS, Dharwad, India;
3.Department of Food Science and Nutrition, UAS, Dharwad, India;
4.Department of Agronomy, UAS, Dharwad, India;
5.Department of Plant Pathology, UAS, Dharwad, India;
Author    Correspondence author
Plant Gene and Trait, 2013, Vol. 4, No. 11   doi: 10.5376/pgt.2013.04.0011
Received: 03 Jun., 2013    Accepted: 05 Jul., 2013    Published: 01 Aug., 2013
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This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Preferred citation for this article:

Kage et al., 2013, Estimation Of Heterosis And Combining Ability In Single Cross Hybrids Developed From Newly Derived Inbred Lines Of Maize (Zea Mays L.), Plant Gene and Trait, Vol.4, No.11 60-65 (doi: 10.5376/pgt.2013.04.0011)

Abstract

An experiment was conducted to study the heterosis and combining ability in newly derived inbred lines involving line×tester analysis with ten lines and three testers at All India Co-ordinated Maize Improvement Project, Agricultural Research Station, Arabhavi, UAS, Dharwad. The results revealed that among ten female lines, L2 was the best general combiner for plant height, ear height, ear length, 100-grain weight, grain yield per hectare and fodder yield per hectare. Whereas, among thirty crosses, L8×T3 was the best specific combination for plant height, ear height and grain yield per hectare. Among thirty, three hybrids L2×T1, L1×T2 and L×T3 showed significant positive standard heterosis over both EH434042 and 900M (Commercial checks).

Keywords
Heterosis; Combining ability; Line x tester and maize
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