Heterosis in Obcordate Leaf CMS Based Hybrids in Pigeonpea [Cajanus Cajan (L.) Millsp.].

Abstract

Heterosis, Restorer, mid parent heterosis, better parent, heterosis and standard check. An experiment was conducted in Randomized Complete Block Design (RBD) with 14 F 1 hybrids, 4 B-lines, 5 R-lines and 5 standard checks of pigeonpea sown on 14 July 2015 at ICRISAT, Patancheru.The results on heterosis of 14 pigeonpea hybrids over mid-parent, better parent, and the standard check for seed yield and yield components revealed that the maximum heterosis over mid parent fallowed by better parent and standard check. Among these, seed yield (kg/ha) was recorded higher heterosis followed by number of secondary branches plant-1 and number of pods plant-1 .Further, ICPH 4679, ICPH 4571 and ICPH 4746 hybrids had uniformly recorded desirable heterosis over mid parent, better parent and standard check. ICPL 20116, ICPL 20093 R lines, ICPB 2204, and ICPB 2200 B lines were observed to be superior for seed yield and other important yield attributes in the present study and are recommended for use in hybrid pigeonpea breeding programmes.