Genetic divergence in commercial cucumber (Cucumis sativus L.) genotypes

Authors

  • Rokib Hasan Department of Botany, Jahangirnagar University, Savar, Dhaka-1342
  • Mohammed Kamal Hossain Department of Botany, Jahangirnagar University, Savar, Dhaka-1342
  • Nazmul Alam Department of Botany, Jahangirnagar University, Savar, Dhaka-1342
  • Abul Bashar Department of Botany, Jahangirnagar University, Savar, Dhaka-1342
  • Saidul Islam Department of Botany, Jahangirnagar University, Savar, Dhaka-1342
  • Mohammad Jahangir Alam Tarafder Department of Botany, Jahangirnagar University, Savar, Dhaka-1342

DOI:

https://doi.org/10.3329/bjb.v44i2.38508

Keywords:

Cucumber, Path analysis, Genetic divergence, Cluster analysis, D2 statistics, Biplot

Abstract

Genetic diversity in commercial cucumber genotypes was estimated based on 13 characters. Path analysis revealed that fruits/plant (0.701) and fruit weight (0.379) had maximum positive direct effect on yield. Seven cucumber genotypes were grouped into three different clusters. The highest inter-cluster distance (4.078) was observed between cluster I and II whereas lowest inter-cluster distance (1.011) was observed between the clusters I and III. Cluster II showed highest mean for length of main vine, nodes/plant, primary branches/plant, days to 1st male flowering, length of internodes/plant, fruits/plant and yield/plant whereas cluster III produced highest mean for leaf length, leaf breadth, fruit length, fruit diameter and fruit weight. Cluster II and III contributed 53.85 and 38.46%, respectively towards divergence.

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Published

2018-10-13

How to Cite

Hasan, R., Hossain, M. K., Alam, N., Bashar, A., Islam, S., & Tarafder, M. J. A. (2018). Genetic divergence in commercial cucumber (Cucumis sativus L.) genotypes. Bangladesh Journal of Botany, 44(2), 201–207. https://doi.org/10.3329/bjb.v44i2.38508

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Section

Articles