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对紫花苜蓿耐盐性鉴定指标根系活力进行了相关分析,表明根系活力与苜蓿耐盐性呈显著的负相关,可以作为衡量苜蓿耐盐性的可靠指标;对北方常见耐盐苜蓿品种进行了筛选,结果表明,耐盐性强弱依次为中苜一号苜蓿>敖汉苜蓿>阿尔冈金苜蓿>肇东苜蓿>龙牧801苜蓿;探索了提高苜蓿耐盐性的种子处理方法,结果表明,吲哚乙酸溶液、0.3g/L的水扬酸溶液、0.1%的氯化钙溶液、0.2%的硝酸钾溶液等种子处理方法均有效提高苜蓿耐盐性。
The correlation analysis of root activity of alfalfa salt tolerance index showed that there was a significant negative correlation between root activity and salt tolerance of alfalfa and could be used as a reliable indicator of salt tolerance of alfalfa. The common salt tolerant alfalfa varieties in northern China were screened The results showed that the order of salt tolerance was that of middle alfalfa> Aohan alfalfa> Algonquin alfalfa> Zhaodong alfalfa> Longmu 801 alfalfa. The seed treatment methods to improve salt tolerance of alfalfa were explored. Indole acetic acid solution, 0.3g / L salicylic acid solution, 0.1% calcium chloride solution, 0.2% potassium nitrate solution and other seed treatment are effective in improving salt tolerance of alfalfa.