Heterosis and combining ability analysis in cytoplasmic genetic male sterility (CGMS) system of pigeonpea height variants (Cajanus cajan L.)
Abstract
In the present experiment four newly diversified cytoplasmic male sterile (CMS) height variants viz., Dwarf 30 cm, Dwarf 45 cm, Dwarf 60 cm and Dwarf 90 cm were crossed with twelve restorer lines at Pulses Research Unit, Dr. P.D.K.V., Akola. Analysis of variance for combining ability showed significant differences among the parents, hybrids, parents vs. crosses, line effects and line x tester interactions for all most all the traits with some exception for variance due to line. Tester AKPR210 was found significant for all yield and yield contributing traits. Among the lines Dwarf 45 cm and Dwarf 60 cm were found good GCA effects for early flowering and maturity. Dwarf 45 cm x AKPR-344 and Dwarf 45 cm x AKPR-325 found significant over both checks PKV-TARA and AKT-8811 alsoshowed highly significant SCA effects for grain yieldper plant and yield contributing characters.
Keywords
CMS, Height variants, Heterosis, Pigeonpea, SCA