PRITI, RAM C. YADAV AND NEELAM R. YADAV*
Department of Molecular Biology, Biotechnology and Bioinformatics
CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India
*(e-mail: nryadav58@gmail.com)
(Received: 2 June 2026; Accepted: 26 June 2026)
SUMMARY
Cluster bean [Cyamopsis tetragonoloba (L.) Taub.] is a cash crop as the presence of endospermic galactomannan gum in seeds. Hence yield improvement of this crop has been a prime objective for breeders worldwide. In the present study, correlation and path analysis was carried out to comprehend the true association of yield and yield attributing traits like, plant height, branches per plant, cluster per plant, pods per cluster, pods per plant, pod length, days to 50% flowering, days to maturity, 100 seed weight, seed yield per plant in 68 lines of F4-5 intraspecific population (HG75×PNB) of cluster bean. Our study witnessed the maximum direct effect on seed yield per plant by pods per plant (0.612), followed by hundred seed weight (0.336) and clusters per plant (0.178). Thus, number of pods per plant, hundred seed weight and clusters per plant had the true positive association with seed yield per plant under BLB conditions and should be considered as selection criteria while selecting plants with improved yield.
Key words: Cluster bean, HG 75, PNB, galactomannan gum, path analysis