COMBINING ABILITY IN ROSELLE (HIBISCUS SABDARIFFA L. VAR. ALTISSIMA)

Abstract

Combining ability studies in a 10 x 10 F2 diallel set of roselle indicated that mean sum of squares due to gca as well as sca were significant for six characters, while gca : sca ratio more than unity suggested the prevalence of additive gene effects. The genotype AMY 2 was the best general combiner for economic attributes while the crosses AR 105 x AMY 2 and AMV2 x CP 510 were the best specific cross combinations.