Vol. 4 (6) : November-December 2013 issue
Green Farming Vol. 4 (6) : 783-785 (November-December, 2013)
Breeding potential of chilli genotypes using D2 analysis
B.K. SAVITHA1* and L. PUGALENDHI2
Dept. of Vegetable Crops, Tamil Nadu Agricultural University, Coimbatore - 641 003 (Tamil Nadu)
Designation : 1Research Associate *(savi_horti@yahoo.co.in), 2Professor
Subject : Horticulture (Spices, Ornamental & Plantation Crops, Floriculture and Landscape Architecture etc.)
Paper No. : P-1000
Total Pages : 3
Received : 27 June 2013
Revised accepted : 24 October 2013
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Citation :
B.K. SAVITHA and L. PUGALENDHI. 2013. Breeding potential of chilli genotypes using D2 analysis. Green Farming Vol. 4 (6) : 783-785 ; November-December, 2013
ABSTRACT
The present investigation was carried out in kharif season of 2009-2010. All the genotypes were grouped into D2 values, which exhibited no association between geographical and genetic divergence. At the intra cluster level, the maximum D2 distance was noticed in cluster VII, followed by cluster I. At the inter cluster level, the maximum D2 distance was observed between cluster V and VI, followed by that between cluster I and V. The least inter cluster distance was recorded between clusters III and IV. On the basis of mean performance cluster I had the highest mean value for number of fruits per plant, where as cluster II had highest mean value for fruit weight. The mean values of plant height and fruit length and fruit girth were higher in cluster III. Cluster V had the highest mean value for number of branches, fresh fruit yield per plant and dry fruit yield per plant. The mean value of number of thrips per three apical leaves, reaction to thrips in 9 grade score and percentage of damaged plants were higher in cluster IX.
Key words :
Capsicum annuum, Chilli genotypes, D2 analysis, Genetic divergence.