Soaking Rice Seeds in High Concentration Salt Solution Improved Salt Tolerance at the Seedling Stage
刊名 Agricultural Biotechnology
作者 Jing LIN1*, Weiwei CAO2, Fan WANG2, Xianwen FANG1
作者单位 1.Institute of Crop Germplasm and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; 2. Jiangsu Coastal Development Group Co., Ltd., Nanjing 211800, China
DOI DOI:10.19759/j.cnki.2164-4993.2024.05.005
年份 2024
刊期 5
页码 16-18
关键词 Rice; Salt water; Seed soaking; Salt tolerance; Seedling stag
摘要 [Objectives] This study was conducted to enhance the salt tolerance of current rice varieties at the seedling stage and fulfill the urgent requirement for salt-tolerant rice varieties in coastal tidal flats. [Methods] Four high-generation stable rice lines with diverse salt tolerance were employed as test materials, and four NaCl concentration gradients were established for seed soaking treatment. [Results] The seedling survival rate of line 151465 underwent significant alterations after soaking with four different salt concentrations, and the survival rate was the highest after treatment with 1.8% NaCl for 1 d, reaching 65.2%. The average survival rate of other three lines with different salt tolerance reached 62% after soaking with 1.8% NaCl for 1 d, which was significantly higher than those of the 2.2% NaCl and 0% NaCl treatments. [Conclusions] This study provides a basis for reducing the effect of abiotic stress on rice growth and development and improving the utilization rate of saline-alkali land.