Inheritance of parthenocarpy in gynoecious cucumber (Cucumis sativus L.) cultivar PPC-2

Jat G S; Munshi A D; Behera T K; Bharadwaj C

doi:10.24154/jhs.v12i2.23

Authors

Jat G S ICAR-Indian Agricultural Research Institute Author
Munshi A D Author
Behera T K Author
Bharadwaj C Author

DOI:

https://doi.org/10.24154/jhs.v12i2.23

Keywords:

Inheritance, parthenocarpy, gynoecious, cucumber

Abstract

The gynoecious and parthenocarpic inbred line, Pant Parthenocarpic Cucumber-2 (PPC- 2) was crossed with Indian monoecious and non-parthenocarpic cultivar Pusa Uday to develop F1, F2, B1 and B2 to determine the inheritance of parthenocarpy.The crop was grown under insect proof net house of 40 mesh. The pistillate buds were covered using butter paper bags before anthesis to prevent out-crossing.The observations were recorded separately for the development of early parthenocarpic fruits (i.e.1-7th nodes), late parthenocarpy (8th and above nodes) and non-parthenocarpic fruits. In F1 generation, out of 40 plants screened, 2 plants produced parthenocarpic fruits at lower nodes (1-7th nodes), 37 plants produced parthenocarpic fruits at upper nodes (8th and above), whereas,only 1 plant that did not produced any fruit was considered as non-parthenocarpic. The segregation of F2 population and test crosses for parthenocarpic fruit development suggested that parthenocarpy in gynoecious and parthenocarpic cucumber line PPC-2 is under the control of incomplete dominant gene.

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