2010•Zhongkai Nongye Gongcheng Xueyuan xuebaoRequires access

Study on photosynthetic characteristics of five ornamental shrubs

Zhou Hou-gao

Abstract

The photosynthetic characteristics of five ornamental shrubs were studied in this paper.The results showed that their net photosynthetic rate(Pn),stomatal conductance(Gs),transpiration rate(Tr),intercellular CO2 concentration(Ci) were detected by LI-6400XT Photosynthetic Analysis System,and then light compensation points(LCP) and light saturation points(LSP) were calculated.Pn correlated positively with Gs and Tr,while correlated negatively with Ci.Hibiscus rosa-sinensis was light-needed plant for highest LSP,while Camellia japonica was shade-tolerant plant with lowest LCP.

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Key concepts: Transpiration, Photosynthesis, Ornamental plant, Stomatal conductance, Botany, Horticulture, Compensation point, Hibiscus