CaCl2对越冬期一品红观赏及生理特性的影响

[目的]研究CaCl2对一品红抗冷性指标的影响。[方法]采用土壤浇灌的方式,设3个浓度梯度,测定并分析相关指标。[结果]土壤浇灌CaCl2可以增加低温期间一品红叶片叶绿素、可溶性糖、游离脯氨酸含量,降低自由水含量/束缚水含量比值,提高过氧化氢酶活性。[结论]CaCl2可以提高一品红耐冷性,试验以1 000 mg/L浓度较好。

Effects of CaCl2 on the Ornamental and Physiological Characteristics of Euphorbia pulcherrima during the Overwintering Period

[Objective] The research aimed to study the effects of CaCl2 on the cold-resistance indices of Euphorbia pulcherrima.[Method] Soil irrigation mode was taken and 3 concentration gradients were set up to determine and analyze the related indices.[Result] Pouring CaCl2 by soil could increase the contents of chlorophyll,soluble sugar and free proline in the leaves of E.pulcherrima,decrease the content ratio of free water to bound water and enhance the activity of CAT.[Conclusion] CaCl2 could enhance the cold resistance of E.pulcherrima,with the optimum concentration of 1 000 mg/L in this experiment.