蜡梅光合与蒸腾速率日变化的初步研究OA北大核心CSCDCSTPCD
A preliminary study on the diurnal variation of net photosynthetic rate and transpiration rate for Chimonanthus praecox
对野生蜡梅在不同天气中的净光合速率(Pn)和蒸腾速率(Tr)日变化及其与环境因子的关系进行了初步研究,结果如下:(1)蜡梅在晴天和阴天的Pn日进程均呈一双峰型曲线.但晴天的两个峰值比在阴天出现要早,Pn的总体水平要高于阴天,且在午后发生明显的光合"午休"现象.(2)Tr在晴天的日变化呈单峰型曲线,在午后强光和高温条件下,Tr可高达10 mmol H2O m-2s-1以上.在阴天,Tr日进程波动很小,且蒸腾作用微弱,全天大多保持在0.8 mmol …查看全部>>
Abstract:The measurement of the net photosynthetic rate (Pn) and transpiration rate (Tr) for Chimonanthus praecox (L.) Link. under the natural conditions on sunny and cloudy days was carried out. The influences of environmental factors on diurnal variation of Pn and Tr for C. praecox were also analyzed in this paper. The present experimental results show: (1) The diurnal courses of the Pn for C. praecox on sunny and cloudy days were both double-ridged curves…查看全部>>
李菁;刘应迪;陈功锡;陈军;朱杰英
吉首大学生态研究所,湖南吉首,416000吉首大学生态研究所,湖南吉首,416000吉首大学生态研究所,湖南吉首,416000吉首大学生态研究所,湖南吉首,416000吉首大学生态研究所,湖南吉首,416000
农业科技
蜡梅净光合速率蒸腾速率
Chimonanthus praecoxnet photosynthetic ratetranspiration rate
《广西植物》 2000 (1)
52-58,7
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