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以金露梅、银露梅、砂地柏、红花岩黄芪4种地被植物为试材,研究了干旱胁迫处理对土壤含水量及4种地被植物凋萎系数、叶片游离脯氨酸含量以及丙二醛含量等指标的影响。结果表明:干旱胁迫初期苗木外观无明显变化,各树种生长保持旺盛状态,叶片色泽正常。但随水分胁迫的延续,不同种类之间表现出的抗旱性变化的差异较大。综合分析认为,4种地被植物抗旱性由强至弱依次为:砂地柏>金露梅>红花岩黄芪>银露梅。
Four kinds of ground cover plants of Jinluomei, Yinlumei, Sabina vulgaris and Safflower Rock Astragalus were used as materials to study the effect of drought stress on soil water content and the wilting coefficient, leaf free proline content and C Dialdehyde content and other indicators. The results showed that there was no obvious change in the appearance of seedlings in the early stage of drought stress, and the growth of each tree species remained vigorous and the leaf color was normal. However, with the continuation of water stress, the differences of drought resistance among different species are quite different. Comprehensive analysis shows that the drought resistance of four kinds of coverings from strong to weak are: Sabina vulgaris> Jinlumei> safflower rock Astragalus> Silver Luomei.