LINE X TESTER ANALYSIS FOR FIELD TOLERANCE AGAINST FOLIAR BLIGHT (H. SATIVUM) IN BREADWHEAT

Abstract

Line xtester analysis of sixty crosses was done with a view to identify the gca and sca effects of five female and twelve male parents in wheat. Percentage of F2 plants was taken into consideration in all these crosses. RL 6010/5* Ska, a backcross derivative of Sonalika with Lr 9 and Shanghai 4 of Chinese origin were found to be the best general and specific combiners for breeding for resistance to H. sativum isolates. The degree of dominance showed dominant genes action and narrow sense heritability to be low.