2009•Journal of Fujian Forestry Science and TechnologyRequires access

Study on Diurnal Changes of Photosynthesis in Evod iarutaecarpa

Shengfeng Chai

Abstract

Chlorophyll content,diurnal variation and many other indicators of Evod iarutaecarpa were measured.The results showed that: Evod iarutaecarpa prefered shade;net photosynthetic rate curve showed as a bimodal type,photosynthetic rate quickly increased to maximum in the morning and then began to decline,mainly caused by non-stomatal limitation.Evod iarutaecarpa leaf net photosynthetic rate(Pn) on changes in stomatal conductance and(Cond),concentrations of carbon dioxide(CO2) was a positive correlation;and leaf temperature(T1) was a negative correlation.

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Key concepts: Photosynthesis, Morning, Diurnal temperature variation, Stomatal conductance, Carbon dioxide, Positive correlation, Botany, Horticulture