Combining Ability Studies for Development of New Sunflower Hybrids Based on Diverse Cytoplasmic Sources

Author:

Dhillon S. K.1,Tyagi Vikrant1

Affiliation:

1. 1Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana, India

Abstract

AbstractThe experiment involved 7 different cms analogues as a female parent and 6 restores lines as male parent to synthesis of a set of these 42 hybrids. The experiment was conducted during spring season 2012 in Line×Tester breeding design and evaluated for combining ability of 7 morphological, physiological and important sunflower yield components traits. The results based on GCA effects of parents for different characters revealed that among the lines DV-10A and among testers P93R, P143R and RHA83R6 were found to be the good general combiners for seed yield and oil content with early maturing except P143R, which is good combiner for flowering and late maturity. The crosses CMS-XA×RHA83R6 and PRUN-29A×RHA83R6 were found to be superior and exhibited highest SCA effects with highest mean values for oil content but for seed yield having negative SCA effects with average for seed yield. The hybrids PKU-2A×RHA83R6 and E002-91A×P93R having high mean seed yield with high SCA effects.

Publisher

Walter de Gruyter GmbH

Subject

Agronomy and Crop Science

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