Journal of Horticultural Sciences

B. Senthamizh Selvi ¹, V. Ponnuswami ², N. Kumar ³

Affiliations
1 Department of Spices and Plantation Crops, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore-641 003, IN
2 Department of Vegetable Crops, Horticultural College and Research Institute, Coimbatore - 641 003, IN
3 Tamil Nadu Agricultural University, Coimbatore - 641 003, IN

Abstract

Investigations were carried out at the Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore, during 2003-2005 to work out radiosensitivity of five varieties of amla (Emblica officinalis Gaertn.) exposed to different doses of gamma rays. Scions of five amla varieties, viz., BSR-1, Kanchan, Krishna, NA-7 and Chakaiya, were irradiated with different doses (1.0 to 5.0 kR) and these were grafted on to ischolar_mainstocks. Based on the sensitivity study, LD₅₀ for 100% survival ranged from 1.0 to 2.0 kR for all the five varieties. All the amla varieties could survive upto 10-20% at lower doses (upto 2.5 kR).

Keywords

Amla, Sensitivity, LD₅₀

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