Heterosis and genetic parameters for yield-related traits in pigeonpea (Cajanus cajan (L.) Millsp.)

Abstract

The present study on “Heterosis and Genetic Parameters for Yield-Related Traits in pigeonpea (Cajanus cajan (L.) Millsp.)” was conducted during Kharif 2018 using three crosses — BDN 708 × BDN 2014-1, BDN 711 × BDN 2010-1, and BSMR 853 × PUSA 2001 — along with the standard check BDN 716. Significant heterosis was observed for most yield and yield-related traits, indicating ample genetic variability. The cross BDN 711 × BDN 2010-1 exhibited the highest positive heterosis for seed yield per plant and number of pods per plant, while BSMR 853 × PUSA 2001 showed desirable heterosis for earliness and number of seeds per pod. Negative heterosis for days to flowering and maturity suggested potential for developing early maturing genotypes. Overall, BDN 711 × BDN 2010-1 emerged as the most promising cross for yield improvement in pigeonpea.