Agrotechnology

Heterosis and combining ability studies for sugar content in selected sweet corn hybrids and their parental lines

International Conference on Agricultural & Horticultural Sciences

September 14-15, 2012 Hyderabad International Convention Centre, India

K. Sadaiah

Posters: Agrotechnol

Abstract:

The present investigation was undertaken in sweet corn to carry out the combining ability analysis for sugar content in the ker - nel. Eight divergent parents were selected and crossed in diallel fashion (Griffings Method-II, Model-I) excluding reciprocals during Kharif, 2010. The resulting 28 crosses along with parents and standard checks Sugar 75 and Madhuri were evaluated in Randomized Block Design replicated thrice, during Rabi, 2010-11 at Agricultural Research Institute, Rajendranagar, Hyderabad. The combining ability analysis revealed importance of both additive and non-additive gene actions in governing this particular trait. The parental lines 6072-3 and 6069 were good general combiners for sugar content and the hybrid combinations 6072-3 x 6100-2, 6104 x 6082 and 6127 x 6100 were considered as good specific combiners for sugar content. The hybrid combinations 6072-3 x 6069, 6072-3 x 6100-2 and 6069 x 6122-1 performed well over standard checks Madhuri and Sugar 75 for sugar content in kernel.

Biography :

Ph.D.Scholar,Department of Genetics and Plant Breeding, College of Agriculture, Acharya N.G.Ranga Agricultural University, Rajendranagar, Hyderabad, Andhra Pradesh, India.