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为发掘我国稻种资源的有利基因,经济、合理的利用盐碱土,提高粮食产量。依据改进后的国际水稻研究所水稻耐盐性温室鉴定法(IRRN,13—5,1988、10),鉴定了1580份水稻品种的耐盐性。其中147个我国培育和大面积推广品种三分之一对0.5％NaCl危害具有一定的抗性。经过两年复鉴和全生育期盐害下试种,证明这类品种抗性稳定。A、R、yeo等(1984年)的耐盐性机制研究揭示这种特性能遗传,可在生产和育种上利用。
In order to explore the favorable genes of rice seed resources in our country, it is necessary to use saline-alkali soil economically and rationally to increase grain yield. Salt tolerance of 1580 rice cultivars was identified based on the improved IRRI (13-5, 1988, 10). One third of the 147 cultivars cultivated in China and large-scale popularized varieties have certain resistance to the harm of 0.5% NaCl. After two years of re-identification and salt damage during the whole growth period, it is proved that the resistance of these varieties is stable. Studies on the mechanism of salt tolerance by A, R, Yeo et al. (1984) reveal that this trait can be inherited and can be utilized in production and breeding.