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Please use this identifier to cite or link to this item:
http://krishi.icar.gov.in/jspui/handle/123456789/31923
Title: | Tolerant varieties and exogenous application of nutrients can effectively manage drought stress in rice |
Other Titles: | Not Available |
Authors: | Banwari Lal, Priyanka Gautam, Amaresh Kumar Nayak, Sanghamitra Maharana, Rahul Tripathi, Mohammad Shahid, Mirza Jaynul Baig, Rajagounder Raja, Yoichiro Kato, Ashish Kumar Srivastava & Sudhanshu Singh |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR::National Rice Research Institute ICAR::Central Sheep and Wool Research Institute ICAR::National Research Centre on Camel ICAR::Central Institute of Cotton Research International Rice Research Institute, Manila, Philippines International Rice Research Institute (IRRI), New Delhi, India |
Published/ Complete Date: | 2019-02-23 |
Project Code: | Not Available |
Keywords: | Drought; drought tolerance indices; Oryza sativa; nutrient management; physiological traits |
Publisher: | Taylor & Francis |
Citation: | Banwari Lal, Priyanka Gautam, Amaresh Kumar Nayak, Sanghamitra Maharana, Rahul Tripathi, Mohammad Shahid, Mirza Jaynul Baig, Rajagounder Raja, Yoichiro Kato, Ashish Kumar Srivastava & Sudhanshu Singh (2019): Tolerant varieties and exogenous application of nutrients can effectively manage drought stress in rice, Archives of Agronomy and Soil Science, VOL. 66, NO. 1, 13–32 DOI: 10.1080/03650340.2019.1587749 |
Series/Report no.: | Not Available; |
Abstract/Description: | Common abiotic stresses in rain-fed rice areas like drought can occur at any phase of crop growth and may occur periodically. Variation in intensity and severity of drought requires the use of different rice varieties and different nutrient management strategies. This study evaluated the morphological and physiological response of contrasting rice cultivars (Rajalaxmi, IR64, and Sahbhagidhan) to various nutrient combinations under water sufficience and scarce conditions. Drought stress at vegetative stage significantly reduced tiller formation, dry matter remobilization, and photosynthesis, leading to around 41.6% yield reduction. The effect of drought stress was more evident in Rajalaxmi and IR64 by a yield reduction of 57.4% and 43.2% as against only 24.3% in Sahbhagidhan. The combined application of nutrients resulted in higher proline accumulation, chlorophyll and carbohydrate concentrations, and photosynthesis and antioxidant enzymes, ultimately better tolerance to drought. This is reflected in higher values of tolerance indices and low scores of leaf drying and leaf rolling, especially for Sahbhagidhan. The combined application of P, K, Ca, Zn, and Fe resulted in 52.9, 53.3, 48.9% higher yield over P or K application. Rice drought tolerance can be managed by combining breeding of drought-tolerant high yielding varieties with the proper application of fertilizer nutrients. |
Description: | Not Available |
ISSN: | Not Available |
Type(s) of content: | Research Paper |
Sponsors: | ICAR |
Language: | English |
Name of Journal: | Archives of Agronomy and Soil Science |
NAAS Rating: | 8.14 |
Volume No.: | VOL. 66, NO. 1 |
Page Number: | 13-32 |
Name of the Division/Regional Station: | Crop Production Division |
Source, DOI or any other URL: | https://doi.org/10.1080/03650340.2019.1587749 |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/31923 |
Appears in Collections: | CS-NRRI-Publication |
Files in This Item:
File | Description | Size | Format | |
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Tolerant varieties and exogenous_B Lal.pdf | 3.18 MB | Adobe PDF | View/Open |
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