Indian Society of Genetics & Plant Breeding

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STUDIES ON GENETIC DIVERGENCE OVER ENVIRONMENTS IN MUNGBEAN (VIGNA RADIATA (L.) WILCZEK)

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Forty nine mungbean genotypes were studied in three environments (kharif, rabi uplands,
and rabi rice fallows) to understand the genetic diversity and study the influence of
genotype-environment interactions. Considerable genetic diversity was recorded in the
material studied. Clustering pattern of the genotypes was influenced by the environment.
The genotypes studied fell into 14, 11 and 8 clusters in the three environmen'ts,respectively,
indicating the importance of studying the material in more than one environment. No
relation between geographic diversity and genetic diversity was observed. The parentage
had no effect on the clustering pattern except in rice fallows. Shoot dry weight at harvest
and pods/plant were the common characters differentiating the clusters in all the
environments. Based on per se performance and intercluster distances, LGG 424 and LGG
442 were considered to be genetically diverse parents and may be used in hybridization to
achieve rare recombinants and transgressive segregates.
  

Keywords: Genetic divergence, genotype x environment interactions; mungbean.

Info

Year: 1991
Volume: 51
Issue: 4
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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