Assessment of Physiological Traits for Adaptation to Flowering Stage Water Deficit in Rainfed Lowland Rice (Oryza sativa L.)
Prabhasmita Shatpathy1, Arti2, Surendra Pratap Singh3, Sanat Kumar Dwibedi4* and Abhiram Dash5
1Department of Plant Physiology, Odisha University of Agriculture and Technology, Bhubaneswar, Odisha, India
2Department of Crop Physiology, Narendra Deva University of Agriculture and Technology, Kumarganj, Faizabad, India
3Department of Crop Physiology, Indian Institute of Sugarcane Research, Dilkusha Raibareilley Road, Lucknow, Uttar Pradesh, India
4Department of Agronomy, Odisha University of Agriculture and Technology, Bhubaneswar, Odisha, India,
5Department of Agricultural Statistics, Odisha University of Agriculture and Technology, Bhubaneswar, Odisha, India
*Corresponding author
Abstract:
Responses of 4 cultivars of rice viz. NDR-8002, TCA-48, IR-42 and BPT 5204 to varying levels of moisture deficit stress at flowering stage were assessed in the plastic tubs for their relative tolerance to drought. Moisture deficit adversely affected the apparent translocation rate, relative leaf water content, total chlorophyll content and total soluble carbohydrate content, while proline accumulation enhanced irrespective of varieties. Grain yield decreased conspicuously in all the varieties in response to water stress. Amongst the rice varieties, NDR-8002 and TCA-48 were noted to be relatively more drought tolerant than other 2 cultivars on the basis of their yield performance. The flowering stage in rice was found to be very critical to moisture deficit stress.
Keywords: Rice, Flowering stage, Moisture deficit, Physiological and biochemical traits
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How to cite this article:
Prabhasmita Shatpathy, Arti, Surendra Pratap Singh, Sanat Kumar Dwibedi and Abhiram Dash 2019. Assessment of Physiological Traits for Adaptation to Flowering Stage Water Deficit in Rainfed Lowland Rice (Oryza sativa L.).
Int.J.Curr.Microbiol.App.Sci. 8(10): 245-255. doi:
https://doi.org/10.20546/ijcmas.2019.810.025
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