Abstract:

Tomato (Lycopersicon esculentum Mil1.) is temperate–loving plant, it was often under chilling stress during winter production in solar-greenhouse, and it's efficiency of photosynthesis could get serious influence. In this study, we determined whether Trichoderma aureoviride 1010 (T1010) enhances the photosynthetic physiology of tomato under low temperature in solar-greenhouse or not through soil improvement with T1010. The results of ANOVA showed that there were significant differences in data of the photosynthetic physiology of tomato functional leaves and yield. Among these treatments, the content of chlorophyll a, chlorophyll b and carotenoid of functional leaves during the initial blooming stage of tomato treated with T1010 had been increased by 34.37%, 34.67% and 32.19% than that of control, respectively, and the range of reduction of Fv/Fm treated with T1010 had been decreased by 48.73% than that of control. And the content of chlorophyll a, chlorophyll b and carotenoid of functional leaves during the mid-term of gains of tomato treated with T1010 had been increased by 21.77%, 58.54% and 50.53% than that of control, respectively, and the range of reduction of Fv/Fm treated with T1010 had been decreased by 35.03% than that of control. And among these treatments, the dry weight of single functional leaf, weight of single fruit and yield of 667m2 treated with T1010 had been increased by 42.69%, 30.46% and 20.00% than that of control, respectively. It showed that T1010 had good influence on the photosynthetic physiology of tomato functional leaves and yield under low temperature in solar-greenhouse.