Combining ability studies in some restorer lines of sunflower (Helianthus annuus L.)

Abstract

Ten restorer lines were crossed in diallel fashion excluding reciprocals to obtain 45 crosses to elucidate the information on the combining ability possessed by them for seed yield, yield components and oil content. Forty-five crosses were evaluated for 11 different quantitative characters. Among 10 restorer lines ID-3/147 R was found best general combiner for seed yield per plant and oil content, while cross 298 R x ID-3/147 R was found best cross combination for seed yield per plant and 274 R x BC-3-1R for oil content. The cross combination BC-3-1 R x ID-3/147 R was found promising seed yield and its contributing characters including oil content. The parental genotype ID-3/147 R was found involved in most of promising crosses which revealed its potential to transfer desirable characters in progeny/good combiner.