摘要
为掌握遮阴对睡菜(Menyanthes trifoiata L.)生长和生理响应的影响,在北京地区为睡菜的保护利用提供适宜的生境。以当年分株的睡菜植株为试材,进行盆栽试验,采用全光照(CK)、50%、75%和90%遮阴网覆盖4种不同遮阴处理,研究不同生长阶段不同遮阴处理对睡菜生长及生理指标的影响,并监测不同遮阴处理下微环境因子的变化。结果显示,与CK相比,睡菜在夏季高温期进行60 d的50%~90%的遮阴,能够显著增加植株株高、根状茎和叶面积;50%遮阴处理能够有效提高睡菜叶片叶绿素相对含量及PSII光化学效率F_(v)/F_(m);表明夏季适度遮阴能有效降低光照强度和日最高温度、增加空气湿度。在北京夏季进行50%遮阴处理60~90 d是最有利于睡菜生长的栽培方式。
In order to understand the effect of shading on the growth and physiological respond ofMenyanthes trifoliataL.and to provide suitable habitat in Beijing area for its protection and utilization.Growth and physiological index ofM.trifoliataduring different periods were studied under four shading treatments,including full sunlight,50%shading,75%shading and 90%shading.The microclimatic factors were also monitored under same conditions.The results showed that height growth,rhizome growh and leaf area growth ofM.trifoliataunder 50%-90%shading treatment for 60 days during summer were significantly higher than those in full sunlight;SPAD and Fv/Fm ofM.trifoliatawere effectively increased under 50%shading,compared with CK;moderate shading could effectively reduce light intensity,daily maximum temperatures and increase air humidity.In conclusion,50%shading ofM.trifoliatafor 60-90 days in summer is the most favorable cultivation method.
作者
康晓静
付俊秋
陈旭
西战
施艳霞
陈燕
KANG Xiao-jing;FU Jun-qiu;CHEN Xu(Management Office,Beijing Botanical Garden/Beijing Floriculture Engineering Technology Research Centre/Beijing Laborary of Urban and Rural Ecological Environment,Beijing 100093)
出处
《安徽农业科学》
CAS
2024年第12期54-58,共5页
Journal of Anhui Agricultural Sciences
基金
北京市公园管理中心课题“京津冀地区野生湿地植物的资源调查及保护应用”(ZX2020008)。
关键词
睡菜
遮阴
环境因子
生长
生理响应
Menyanthes trifoliata
Shading
Climatic factors
Growth
Physiological respond
