Vol. 7, Issue 1 (2019)
Genetic divergence studies in colocasia [Colocasia esculenta (L.) Schott] germplasm
Author(s): Bhanu Prakash GC, Ramesh Babu B, Mamatha K, Snehalatha Rani A and Umayjothi K
Abstract: The present investigation entitled “Genetic divergence studies in colocasia [Colocasia esculenta (L.) Schott] germplasm†was conducted at Horticultural Research Station, Kovvur, Andhra Pradesh during the period 2017 to 2018 with twenty eight taro genotypes along with two check varieties to assess the extent of genetic diversity by D2 analysis in an Augmented Block Design during the period 2017 to 2018. Observations were recorded on 19 quantitative characters which included leaf, petiole, corm, cormel and corm biochemical characters. The analysis was conducted for D2 analysis and was concluded from D2 analysis that, the characters leaf area, corm weight/plant, cormel weight/plant and yield/plant contributed the maximum towards diversity. The 30 genotypes were grouped into six clusters based on Ward’s minimum variance method where eight genotypes grouped in cluster I and III while, cluster II, IV, V and VI had three, two, five and four genotypes, respectively. The intra cluster distance was more in cluster VI and the inter cluster distance was maximum between cluster II and cluster VI.
Fig. 1: Dendrogram showing clustering pattern of 30 taro genotypes by Ward’s minimum variance method
Fig. 2: Inter and Intra cluster distances for quantitative characters of taro genotypes by Ward’s minimum variance method
Pages: 998-1002 | 591 Views 125 Downloads
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How to cite this article:
Bhanu Prakash GC, Ramesh Babu B, Mamatha K, Snehalatha Rani A, Umayjothi K. Genetic divergence studies in colocasia [Colocasia esculenta (L.) Schott] germplasm. Int J Chem Stud 2019;7(1):998-1002.
