Effects of Selenium on Photosynthesis and Fruit Quality of Actinidia chinensis
Experiments of selenium application on Actinidia chinensis were conducted in Actinidia chinensis cultivation orchard located at Jiangcun of Hu county of Shaanxi province to study the effects of selenium on photosynthesis and fruit quality. Three concentrations of Na2SeO3 solution were used, 0. 15 mg·kg-1, 0. 3 mg·kg-1 and 0. 5 mg ·kg -1. The results indicated that selenium application increased the net photosynthetic rate, transpiration rate and stomatal conductance, whereas decreased the water use efficiency. At the later stage, the photosynthetic indexes showed the trend of declination. In the fruit collection period, appropriate selenium concentration increase the fresh weight of single fruit, the content of soluble sugar, the content of soluble solid matter and the content of vitamin C. The content of selenium in fruit increased with the application amount of selenium. It was concluded that ≤0. 5 mg·kg-1 was the proper concentration.
NETL
NSTL
万方数据
维普
