林业科技开发2011，Vol.25Issue(2)：35-39,5.DOI:10.3969/j.issn.1000-8101.2011.02.009
龟甲竹光合生理特性及其与主要影响因子关系
Photosynthetic characteristics of Phyllostachys heterocycla and their main impact environmental factors
摘要
Abstract
The photosynthetic characteristics of two-year-old Phyllostachys heterocycla were studied by the Li-6400 portable photosynthesis system. The results showed that the daily dynamics of net photosynthetic rate ( Pn ) of leaves was a one-peak curve, and the peak value was 4.25 μmol/( m2·s) at 9:00. The maximum Pn of leave was 9.18 μmol/( m2· s) under artificial conditions, the LCP was about 14.93 μmol/( m2·s ), the Lsp was about 812.58 μmol/( m2 · s ), and the apparent quantum efficiency was 0.053, these indicated the P. heterocycla had a stronger ability to utilize the weak light, and more extensive adaptability to light intensities. The path coefficient analysis indicated that the diurnal variation of Pn was mainly affected by the relative humidity, and then the leaf temperature, the stomatal conductance, and the photosynthetically active radiation.关键词
光合特性/生理生态因子/龟甲竹Key words
photosynthetic characteristics/ physio-ecological factors/ Phyllostachys heterocycla引用本文复制引用
李迎春,杨清平,陈双林,郭子武,李艳红..龟甲竹光合生理特性及其与主要影响因子关系[J].林业科技开发,2011,25(2):35-39,5.基金项目
浙江省杭州市科技发展技术项目(编号:20071032H11) （编号:20071032H11）
浙江省杭州市农业科技攻关项目(编号:20080632B42). （编号:20080632B42）
