GENETIC DIVERGENCE, ADAPTABILITY AND GENOTYPIC RESPONSE TO YMV IN BLACKGRAM

Article Id: ARCC2027 | Page : 79-85
Citation :- GENETIC DIVERGENCE, ADAPTABILITY AND GENOTYPIC RESPONSE TO YMV IN BLACKGRAM.Legume Research-An International Journal.2009.(32):79-85
Saikat Gantait* and Prakash Kanti Das
Address : Department of Biotechnology, Instrumentation and Environmental Science, Bidhan Chandra Krishi Viswavidyalaya., Mohanpur-741252, India

Abstract

D2 analysis showed that the cluster number and compositions varied in different environments.
Only few were most stable divergent genotypes. Geographic distribution not exclusively determined
cluster composition. The adaptability analysis showed that some genotypes recorded general
adaptation, whereas other adapted to favorable or adverse environment. No close relation between
genetic divergence and adaptation was observed. Genotypic response to YMV attack under field
condition during Pre-kharif based on progress of infection between plants and within plants confirmed
that stable divergent genotypes with either general adaptation or specific adaptation (favorable or
adverse) not always exhibited high level of field tolerance to YMV. It was suggested that genotypic
control would seem to be the potent factor in determining level of tolerance to YMV.

Keywords

Adaptability Blackgram Genetic divergence YMV

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