Vol. 7, Issue 3 (2019)
Toxicity of arsenic on germination and seedling growth of indigenous aromatic rice varieties of India
Author(s): Animesh Ghosh Bag, Ramprosad Nandi, Nitin Chatterjee, Subhrojit Dolui, Gora Chand Hazra and Mrityunjay Ghosh
Abstract: Arsenic (As), at present, a major problem in agricultural production. The concomitant increase in As concentration in rice belt areas affects early establishment and production of rice. So, it is necessary to choose a proper variety. The objective of the study was to evaluate the germination performance and initial growth habits of indigenous rice varieties in response to the different As concentration in the growing solution. Therefore, the effects of As (0, 50, 100, 150, 200 μ M/L) on germination percentage, speed of germination, hypocotyls and radicle length, fresh and dry weight of root and shoot and their percentage reduction were determined. Increasing As concentration caused a decrease in both germination percentage and speed of germination except Variety-4 (V4) and rest of the variety were unable to germinate above 100 μ M/L concentration. Root growth was halted in V3, whereas V4 showed resistance. Most sensitivities regarding relative water content were expressed by V1 and V5 retained more turgidity in 50 μ M/L concentration. In case of the speed of germination, V4 affected much less as compared to others. Root and shoot fresh and dry weight percent reduction showed maximum reduction for V4T4. All the growth parameters were negatively correlated with As concentration. The speed of germination was significantly positively correlated with germination percentage. From the results obtained in the present study, it can be concluded that indigenous rice varieties are sensitive to As concentration and among the varieties, V4 is come out to be the most resistant to As stress.
Pages: 2889-2896 | 237 Views 46 Downloads
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How to cite this article:
Animesh Ghosh Bag, Ramprosad Nandi, Nitin Chatterjee, Subhrojit Dolui, Gora Chand Hazra, Mrityunjay Ghosh. Toxicity of arsenic on germination and seedling growth of indigenous aromatic rice varieties of India. Int J Chem Stud 2019;7(3):2889-2896.
