【摘要】 目的 :对即将移栽大田的 4个药用白菊花栽培类型苗的耐盐性进行鉴定 ,为发展药用白菊花在盐碱地种植提供依据。方法 :将苗栽培在装有石英砂的花盆内 ,用不同NaCl浓度的Hoagland营养液处理 30d后 ,测定株高、干重和叶绿素含量 ,以相对生长速率为主要鉴定指标 ,同时考察菊花植株体内Na+ ,K+ 和Cl-分配情况。结果和结论 :4个白菊花栽培类型苗间耐盐性存在差异 ;大白菊和长瓣菊耐盐性较弱 ,红心菊和小白菊耐盐性较强 ;红心菊和小白菊适于在盐碱地种植。更多还原

【Abstract】 Objective: To evaluate salt tolerance of seedlings of 4 medicinal C. morifolium cultivars to be transplanted, and to expand the planting area. Method:Seedlings were cultivated in hoagland nutrient solution containing various concentrations of NaCl for 30 days. The height, dry weight and chlorophyll content were investigated. Identification index mainly in relative growth rate, the evaluation of NaCl effects on the growth, K +, Na + and Cl - distribution in seedlings were surveyed. Result and Conclusion: The salt tolerance was difference among four cultivars of C. morifolium . The salt tolerance of "Dabaiju" and "Changbanju" was weak, while "Hongxinju" and "Xiaobaiju" was strong. "Hongxinju" and "Xiaobaiju" may be planted in salinte soil area.更多还原