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本文以7种具观赏价值的灌木树种为研究对象,探讨了7种植物的抗旱性,测定分析了叶保水能力,肉质化程度,和水分饱和亏缺等生理指标,旨在为城市绿化选种提供依据。结果表明:对试验植物的抗旱性指标进行聚类分析,可将7种植物大致分为3类,抗旱性较强的猬实、贺兰山丁香为1类,抗旱性居中的沙冬青、沙木蓼为第2类;抗旱性较差的互叶醉鱼草、蒙古扁桃、柄扁桃为第3类。将7种植物的抗旱性指标进行主成分分析,得出抗旱性由强到弱的顺序为猬实>贺兰山丁香>沙木蓼>沙冬青>蒙古扁桃>柄扁桃>互叶醉鱼草。
In this paper, seven species of shrubs with ornamental value were selected as research objects to investigate the drought resistance of seven species of plants. Physiological indexes such as leaf water retention capacity, fleshy degree and water saturation deficit were analyzed and analyzed. Provide evidence. The results showed that the 7 groups of plants could be divided into three groups by clustering analysis: drought resistance index of Hedysarum, Helan Mountain clove was 1, For the second category; poor drought resistance each other Buddleia, Mongolia almond, handle Almond as the third category. The drought resistance index of seven species of plants was analyzed by principal component analysis. The results showed that the sequence of drought resistance from strong to weak was Hedysarum angustifolia> Helancaojian> Polygonum amygdalus> Astragalus mongolica> Prunus mongolica> Prunus persica>