Spectrum of chlorophyll mutations and morphological variations in Abelmoschus esculentus L. induced through gamma radiation

S Sasipriya; S Gangaprasad; B M Dushyantha Kumar; A Nagarajappa; H Basavaraj; B N Harish Babu

doi:10.24154/jhs.v18i1.2170

Authors

S Sasipriya Keladi Shivappa Nayaka University of Agricultural and Horticultural University, Shivamogga - 577216, Karnataka, India Author
S Gangaprasad Keladi Shivappa Nayaka University of Agricultural and Horticultural University, Shivamogga - 577216, Karnataka, India Author
B M Dushyantha Kumar Keladi Shivappa Nayaka University of Agricultural and Horticultural University, Shivamogga - 577216, Karnataka, India Author
A Nagarajappa Keladi Shivappa Nayaka University of Agricultural and Horticultural University, Shivamogga - 577216, Karnataka, India Author
H Basavaraj Keladi Shivappa Nayaka University of Agricultural and Horticultural University, Shivamogga - 577216, Karnataka, India Author
B N Harish Babu AICRP (Groundnut), Zonal Agricultural and Horticultural Research Station, Hiriyur - 577598, Karnataka, India Author

DOI:

https://doi.org/10.24154/jhs.v18i1.2170

Keywords:

Chlorophyll mutants, gamma radiation, mutation, okra, variability

Abstract

Okra [Abelmoschus esculentus (L.) Moench], is an economically exploited important traditional vegetable crop of the world. The present investigation examined the variability in induced chlorophyll mutants and other
morphological variations in okra. Seeds of two open pollinated popular varieties of okra namely Arka Anamika and Arka Abhay were irradiated with gamma doses of 30, 50 and 80 kR. The treatment 50 kR enhanced plant height, number of fruits per plant, fruit length, single fruit weight and total fruit yield per plant. Spectrum of several chlorophyll mutants were observed in the M1 generation. Other macro-mutants such as early and late flowering types, dwarf statured plants, leaf and flower mutants were also noticed at different doses of gamma radiation. The total number of visible mutation followed a trend of increasing frequency with the increase in dose of radiation.

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