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以美国 9个秋眠性标准对照品种为参照 ,按Barnes ( 1991)方法测定了中国新疆野生苜蓿种群 117份、伊朗及其它国家 3 5份材料的秋眠性。结果表明 ,中国新疆北疆苜蓿野生种群没有半秋眠性种质 ,均为秋眠性种质 ,而南疆苜蓿则有秋眠性等级为 4和 5的种群多份 ;来自伊朗等国的材料则具有秋眠、半秋眠、非秋眠类型材料 ,对中国南疆、北疆野生种群秋眠性差异大的原因进行了探讨。
Based on the nine fall dormancy reference cultivars in the United States, 117 wild alfalfa populations in Xinjiang, China, and 35 fall dormancy in Iran and other countries were determined by the method of Barnes (1991). The results showed that there was no semi-fall dormant germplasm in the wild population of alfalfa in northern Xinjiang, China, and both of them were fall dormant germplasm. In southern Xinjiang, alfalfa had more than 4 populations with fall dormancy grades of 4 and 5, The materials have the characteristics of fall dormancy, semi-fall dormancy, and non-fall dormancy. The reasons for the big difference in fall dormancy between wild populations in southern and northern Xinjiang were discussed.