Vol. 6 (6) : November-December 2015 issue
Green Farming Vol. 6 (6) : 1322-1324 ; November-December, 2015
Genetic divergence studies in dolichos bean (L. purpureus) genotypes through principal component analysis
AJAY KUMAR VERMA1*, K. UMA JYOTHI2, A.V.D. DORAJEE RAO3 and R.P. SINGH4
Deptt. of Horticulture, HC & RI, Dr. Y.S.R. Horticultural Univ., Venkataramannagudem, W.G. Dist. - 534 101 (A.P.)
Designation : 1ARS Scientist *(ajayhorti19@gmail.com), 2,3Professor, 4Ph.D. Scholar
Subject : Vegetable Sciences
Paper No. : P-3156
Total Pages : 3
Received : 09 January 2015
Revised accepted : 26 October 2015
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Citation :
AJAY KUMAR VERMA, K. UMA JYOTHI, A.V.D. DORAJEE RAO and R.P. SINGH. 2015. Genetic divergence studies in dolichos bean (L. purpureus) genotypes through principal component analysis. Green Farming Vol. 6 (6) : 1322-1324 ; November-December, 2015
ABSTRACT
Twelve genotypes of dolichos bean collected from IIPR, Kanpur & AICRP on Pigeonpea, Bangalore were evaluated for their genetic diversity using Mahalanobis D2 statistic and were grouped in to four clusters. The maximum genetic distance was observed between cluster I and cluster III followed by cluster II and cluster III. Cluster I and cluster II displayed lowest degree of divergence. The maximum intra cluster distance was exhibited by cluster III followed by cluster IV. The mean value for most of the traits was highest in cluster II. Geographical and genetic diversity were observed to be unrelated as genotypes from diverse geographical regions were placed in the same cluster, while genotypes from the same centre were grouped into different clusters.
Key words :
Cluster, D2, Genetic divergence, Lablab purpureus, Principal component analysis.
