Genetic diversity analysis in ash gourd [Benincasa hispida (Thunb.) Cogn.] in Northeast India

Authors

  • Ashwini Ananda Department of Horticulture, SASRD, Nagaland University, India-797106 Author
  • S P Kanaujia Department of Horticulture, SASRD, Nagaland University, India-797106 Author
  • Aastik Jha Department of Horticulture, SASRD, Nagaland University, India-797106 Author
  • N Walling Department of Horticulture, SASRD, Nagaland University, India-797106 Author

Keywords:

Ash gourd, Principal component analysis, Divergence analysis.

Abstract

An experiment was conducted in the field to assess the existing variability in ash gourd germplasm based on D2 statistics for 26 quantitative traits. The whole germplasm was classified into 7 clusters, in which the highest inter cluster distance was recorded between cluster III and cluster VII; Cluster VII shown highest mean value for cotyledon length, cotyledon width, vine length, average fruit weight, seed length, seed width, flesh thickness, vit. C, yield/plant and yield/ha. It has been found that Cluster III shown highest mean value for ovary length and Cluster I shown highest mean value for fruit length and fruit diameter. Principal component analysis revealed total variability of 38.6% among genotypes contributed by PC1 (26.6 %) and PC2 (12%). Hence, simultaneous selection of these traits is advised for genetic improvement in the ash gourd breeding program.

Downloads

Published

2022-12-25

Issue

Vol. 35 No. 02 (2022): Indian Journal of Hill Farming

Section

Articles