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研究三点金Desmodium triflorum的耐铝能力对开发优秀的草坪地被植物有一定的重要性,研究表明,2种三点金草对Al3+有一定的耐受性,低铝浓度(20 mg/kg)对三点金草幼苗和成苗生长都有一定促进作用,但较高铝浓度(40 mg/kg)均会阻碍两者根系生长,使其侧根、根干质量和根冠比都有明显减少。在幼苗期,大叶三点金根系对Al3+有较高程度的耐性,但当两者再生长30 d后,小叶三点金对铝盐的耐受能力增强,相反大叶三点金则有所下降。
Studies on the ability of aluminum resistance of Desmodium triflorum to develop excellent lawn mulch have shown that the two kinds of mulberry are tolerant to Al3 +, while the low aluminum concentration (20 mg / kg ) Could promote the growth of seedlings and seedlings, but the higher aluminum concentration (40 mg / kg) would hinder the growth of both roots and root, root and root-shoot ratio cut back. At the seedling stage, the three-point root system of Euonymus japonica had a higher tolerance to Al3 +, but when the two plants grew for another 30 days, the tolerance of three-point gold to the aluminum salt increased. On the contrary, The decline.