Effects of Different Varieties and Chemical Regulation on the Photosynthetic Characteristics of Processed Tomato Leaf

Using three kinds of chemical conditions(300 mg/kg life element,68.752% silver fvarley bactericides 800 times liquid,the mixture)to treat processed tomatoes,the net photosynthetic rate of leaf,stomatal conductance,intercellular CO2 concentration,transpiration rate and water use efficiency were analysed.The results showed that net photosynthetic rate,transpiration rate and water use efficiency of different varieties of processed tomatoes were significantly different,the sanme as stomatal conductance,intercellular CO2 concentration.The net photosynthetic rate of processed tomato in different conditions reached significant difference or extremely significant level.The stomatal conductance difference was not significant.Three chemical conditions improved net photosynthetic rate and water use efficiency.Stomatal conductance and transpiration rate,intercellular CO2 concentration was lower in part of the treatment.