COMBINING ABILITY STUDIES FOR DEVELOPING NEW BASMATI RICE HYBRIDS IN EGYPT

Document Type : Original research

Authors

1 Rice Research Department, Field Crops Research Institute, Agricultural Research Center, Egypt

2 Agronomy Department, Fac. of Agric., Tanta Univ., Egypt.

3 Rice Research Department, Field Crops Research Institute, ARC, Egypt.

10.12816/ejpb.2022.108857.1001

Abstract

Combining ability on some agronomic and grain yield and its components from Line x Tester analysis of 60 hybrids produced by crossing five basmati and one un-basmati CMS lines and ten basmati restorer lines including un-basmati restorer variety Giza 178. The results indicated that plant height, panicle weight, filled grains panicle-1, spikelet fertility %, 1000-grain weight and grain yield (t/ha) were mainly controlled by additive gene action, while, days to maturity (earliness) and panicles plant-1 were mainly governed by dominance gene action (non-additive). Egyptian Pusa basmati 12A/B, 13A/B and 14A/B were general combiner among the female parents for most of the studied traits. Male parents Giza basmati 201, EPR30 and EPR25 were best general combiners for most of the traits. Twenty seven out sixty hybrid rice combinations resulted from Basmati female and male parents exhibited significant desirable SCA effects for grain yield. The most desirable hybrids were IR58025A/EPR15, Pusa14A/EPR25, IR58025A/EPR16, Pusa13A/EPR1 and Pusa14A/EPR1.

Keywords

Files

Share

How to cite

Statistics