氯盐类和非氯植物基融雪剂危害金鸡菊生长发育的比较研究

A comparative study on how the chlorine-salt and non-chlorine-salt plant-based snowmelt agent harm the development of Coreopsis

研究不同剂量浓度的氯盐类融雪剂和非氯植物基融雪剂对金鸡菊生长发育的危害程度。结果表明:施用对应浓度的非氯植物基融雪剂的金鸡菊叶片内丙二醛(MDA)、可溶性糖含量均低于施用氯盐融雪剂的金鸡菊,叶绿素和相对含水量的数值明显高于后者。与对照组相比,施用非氯植物基融雪剂随着剂量的提高,丙二醛(MDA)、可溶性糖含量与对照组相比无明显变化,叶绿素和相对含水量呈现先升高后降低现象。施用氯盐融雪剂随着剂量的提高,金鸡菊叶片内丙二醛(MDA)、可溶性糖含量均明显升高,叶绿素和相对含水量数值明显降低。当浓度达到8 g/L时,受氯盐融雪剂胁迫的金鸡菊叶片甚至有明显枯黄,而非氯植物基融雪剂胁迫下的金鸡菊未有明显受害表征。

The degree of harm to the development of Coreopsis that is caused by different density of the chlorine-salt and non-chlorine-salt plant-based snowmelt were studied. The result shows that the contents of soluble sugar and malondialdehyde （MDA） in the leaves of Coreopsis which is used certain density of non-chlorine-salt plant-based snowmelt agent are lower than that of leaves of Coreopsis which is used the chlorine-salt snowmelt agent. The contents of chlorophyll and relative water content of are significantly higher than that of the latter. As compared with the control group, malondialdehyde（MDA）, soluble sugar content have no obvious change with the augment of the amount of non-chlorine-salt plant based snowmelt agent. Chlorophyll content and relative water content increase first and then decrease. With the augment of the amount of chlorine-salt snowmelt agent, the contents of malondialdehyde （MDA） and soluble sugar increase obviously, and the chlorophyll content and relative water content show obvious decrease. When the density reaches 8g/L, as threatened by chlorine-salt snowmelt agent, the leaves of Coreopsis become obviously brown, but the Coreopsis under non-chlorine-salt plant based snowmelt agent has no obvious suffering.