Evaluation and Characterization of Local Potato Cultivars Collected from the Northern Part of West Bengal based on phenology



The objective of the present investigation was to characterize local potato cultivars found in the northern part of West Bengal utilizing recent morphometric techniques with respect to qualitative traits. In the present investigation, some local potato cultivars were evaluated with 30 qualitative traits to explore their genetic information that was unrevealed following the Kruskal-Wallis non-parametric test, spearman rank correlation analysis, different diversity indices and dendrogram analysis.All qualitative traits showed significant variation (P < 0.005) in accordance with the Kruskal-Wallis non-parametric test. Spearman rank correlation analysis suggested a positive association among the different desirable traits of local potato cultivars. Different diversity indices like the Shannon diversity index (H), Simpson diversity index (D) and Nei’s diversity index (N) were estimated to find the dominant traits in the population as well as variation among the different traits. Finally, cluster and principal coordinate analysis identified four distinct groups among the local potato cultivars with high levels of genetic dissimilarities. Overall, this study will be helpful in managing the potato germplasm and DUS characterization by the potato breeders.


Solanum tuberosum L., Genetic relatedness, Qualitative traits, Phenotypic variants, Kruskal-Wallis test, diversity indices


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