省沽油夏季光合特性初步研究.PDFVIP

安徽农业大学学报, 2011, 38(4): 543-545 Journal of Anhui Agricultural University [DOI]CNKI：34-1162/S1628.031 网络出版时间：2011-06-24 16:28:53 [URL]/kcms/detail/34.1162.S1628.031.html 省沽油夏季光合特性初步研究 1 2 2 2 2 1* 薛正帅 ，蔡新玲 ，肖正东 ，刘俊龙 ，陈素传 ，傅松玲 (1. 安徽农业大学林学与园林学院，合肥 230036 ；2. 安徽省林业科学研究院，合肥 230031) 摘 要：采用Li-6400 型便携式光合测定系统对自然条件下省沽油的光合特性进行研究。结果表明，省沽油夏季光 -2 -1 合日变化呈双峰型，有明显的“午休”现象。其峰值出现在 9：30 和 13：30。省沽油叶片的光饱和点为 1 350 μmol·m ·s ， 光补偿点为43 μmol·m-2·s-1 ，表观量子效率为0.062 μmol·m-2·s-1 。省沽油的光合特性表现为较耐荫的阳性植物。 关键词：省沽油；光合速率；光饱和点；光补偿点 中图分类号：S718.45 文献标识码：A 文章编号：1672−352X (2011)04−0543−03 Preliminary study on the photosynthetic characteristics of Staphylea bumalda in summer 1 2 2 2 2 1 XUE Zheng-shuai , CAI Xin-ling , XIAO Zheng-dong , LIU Jun-long ,CHENG Su-chuan , FU Song-ling (1. School of Forestry and Landscape Architecture, Anhui Agricultural University , Hefei 230036; 2. Anhui Academy of Forestry Sciences, Hefei 230031) Abstract: We studied the photosynthetic characteristics of Staphylea bumalda under the natural condition using Li-6400 portable photosynthesis measurement system. The results showed that the curve of diurnal variation of photo- synthesis presented two peaks at 9:30 and 13:30 respectively in a sunny day with a remarkable noon inhibition. The -2 -1 light saturation and compensation points of Staphylea bumalda were about 1 350 and 43 μmol·m ·s , respectively. The -2