2006•Journal of Hebei North UniversityRequires access

The Effect of Low Light Intensity on Photosynthetic Characteristics of Tomato Leaves in Solar-greenhouse

Hua Jie

Abstract

The effects of low light intensity in solar greenhouse on photosynthetic and chlorophyll fluorescence characteristics of different ecotype tomato functional leaves were studied in comparison with that of normal light environment. The results showed that after low light intensity stress, the chlorophyll contents in leaves were improved apparently, net photosynthetic rate (Pn) was decreased, PSⅡ activity was increased and CO2 assimilation efficiency was decreased, which indicated the tolerance of different varieties to low light stress.

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Key concepts: Photosynthesis, Light intensity, Greenhouse, Ecotype, Chlorophyll fluorescence, Chlorophyll, Chlorophyll a, Horticulture