GENETIC DIVERGENCE IN FODDER RICEBEAN (VIGNA UMBELLATA)
MONICA JYOTI KUJUR*, S. K. BILAIYA, A. K. MEHTA AND V. MEENA
Research Scholar, Department of Plant Breeding & Genetics
Jawaharlal Nehru Krishi Vishwa Vidyalaya,
Jabalpur-482 004 (M. P.), India
*(e-mail : monikajyotikujur@gmail.com)
(Received : 25 April 2017; Accepted : 22 August 2017)

SUMMARY

Eighty-five ricebean genotypes were analyzed for genetic divergence which resulted in six clusters having maximum inter-cluster distance between cluster II and VI and least between clusters I and V. Maximum intra-cluster distance was exhibited by cluster VI followed by cluster IV. Putative lines selected were from cluster II (JRB 08-6, JRB 08-6-1 and JRB 07-4) for days to flower initiation, dry matter yield per plant, dry matter yield per plant per day, crude protein yield per plant and crude protein yield per plant per day; cluster VI (JRO 15-6, KRB 86-1 and JRB 07-35-3) for green fodder yield per plant, number of leaves per plant, plant height, days to 50 per cent flowering, number of branches per plant, green fodder yield per plant per day and leaf : stem ratio, and cluster IV (JRO 15-1, JRO 15-4 and JRO 15-3) for leaf area, stem diameter, root length, fresh root weight and dry root weight. These lines can be used as patents in different hybridization programmes to obtain maximum variation for further selection.

Key words: Genetic divergence, D2 analysis, cluster analysis, ricebean, fodder yield

Forage Res. 43(2) 106-109