INDUCED POLYGENIC VARIABILITY IN PKM-1 MORINGA VARIETY FOR ENHANCED LEAF BIOMASS PRODUCTION

D. UDHAYA KUMAR¹, P. PARAMAGURU²*, S. JULIET HEPZIBA³, T. ARUMUGAM⁴, V. LAKSHMANAN⁵, D. SUSMITHA^6
1Department of Vegetable Science, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
²Professor and Head, Department of Fruit Science, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore, 641003, India
³Professor and Head, Agricultural Research Station, Vaigai Dam, Theni, 625562, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
⁴Dean (Horticulture), Horticultural College and Research Institute, Periyakulam, 625604, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
⁵Professor and Head, Department of Vegetable Science, Horticultural College and Research Institute for women, Tiruchirappalli, 620009, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
⁶Department of Plant Breeding and Genetics, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
* Corresponding Author : paramagurup@yahoo.co.in

Received : 15-10-2019     Accepted : 26-10-2019     Published : 30-10-2019
Volume : 11     Issue : 20       Pages : 9140 - 9141
Int J Agr Sci 11.20 (2019):9140-9141

Keywords : Leaf biomass, Gamma rays, EMS, Moringa, M1 generation
Academic Editor : Dr Zheko Radev, Dr K S Vinayaka, Dr B. S. Vyakarnahal, P Kumar
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Department of Vegetable Science, Horticultural College and Research Institute, Periyakulam, 625604, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
Author Contribution : All authors equally contributed

Moringa oleifera is known worldwide for its nutritional, medicinal and industrial uses. The present investigation was undertaken with a view to estimate the nature and extent of genetic variability created by gamma rays (100 Gy, 200 Gy and 300 Gy) and EMS treatment (0.15 %, 0.20% and 0.25%) on annual moringa variety PKM 1 with respect to five quantitative characters viz., number of primary branches, chlorophyll content, number of rachis, fresh weight of rachis and dry weight of rachis that contributes to leaf biomass enhancement. Mean, range and co-efficient of variation were worked out for M1 generation. Shift in mean towards positive and negative direction was observed for all the traits except number of primary branches under study with no particular trend of shift in mean along the treatments. Widening of range value towards positive side of the control value was observed only for number of primary branches. The coefficient of variability was high for the traits namely, number of primary branches, number of rachis, fresh weight of rachis and dry weight of the rachis. Over all, EMS treatment was found to be productive in creating more variability in favour of leaf biomass enhancement traits.

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