Improvement of Salinity Tolerance in Water-Saving and Drought-Resistance Rice (WDR)

Rice is one of the most economically important staple food crops in the world. Soil salinization and drought seriously restrict sustainable rice production. Drought aggravates the degree of soil salinization, and, at the same time, increased soil salinity also inhibits water absorption, resulting in...

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Bibliographic Details
Published in:International journal of molecular sciences 2023-03, Vol.24 (6), p.5444
Main Authors: Liu, Yi, Wang, Feiming, Zhang, Anning, Chen, Zhihao, Luo, Xingxing, Kong, Deyan, Zhang, Fenyun, Yu, Xinqiao, Liu, Guolan, Luo, Lijun
Format: Article
Language:English
Subjects:
Abiotic stress
Antioxidants
China
Crops
Cytoplasm
dominant male sterile
Drought
Drought resistance
Droughts
Food security
Freshwater resources
Germplasm
Homeostasis
India
Kinases
Male sterility
Oryza
Osmosis
Oxidative stress
Physiological aspects
Physiology
Plant Breeding
Rain
recurrent selection
Review
Rice
Salinity
Salinity effects
Salinity tolerance
Salinization
Salt
Salt Tolerance - genetics
Soil
Soil salinity
Soil water
Soils, Salts in
Water
Water absorption
Water conservation
Water resources
Water shortages
water-saving and drought-resistance rice (WDR)
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Summary:Rice is one of the most economically important staple food crops in the world. Soil salinization and drought seriously restrict sustainable rice production. Drought aggravates the degree of soil salinization, and, at the same time, increased soil salinity also inhibits water absorption, resulting in physiological drought stress. Salt tolerance in rice is a complex quantitative trait controlled by multiple genes. This review presents and discusses the recent research developments on salt stress impact on rice growth, rice salt tolerance mechanisms, the identification and selection of salt-tolerant rice resources, and strategies to improve rice salt tolerance. In recent years, the increased cultivation of water-saving and drought-resistance rice (WDR) has shown great application potential in alleviating the water resource crisis and ensuring food and ecological security. Here, we present an innovative germplasm selection strategy of salt-tolerant WDR, using a population that is developed by recurrent selection based on dominant genic male sterility. We aim to provide a reference for efficient genetic improvement and germplasm innovation of complex traits (drought and salt tolerance) that can be translated into breeding all economically important cereal crops.
ISSN:1422-0067
1661-6596
1422-0067
DOI:10.3390/ijms24065444