Effect of Temperature and Light on Sugar Content in Different Parts of Tomato

Taken pulp,dissepiment,peceinic,and mesocarp of the matured tomato fruit in the processing of different temperature and light treatments at the blossom and fruiting stage,final accumulation of sucrose,fructose,and the soluble sugar was determined separately in comparison with the nature cultivation's tomato growing in the solar greenhouse as the control.The results indicated that temperature and light treatments influenced accumulation of the sucrose,the fructose,and the soluble sugar in different parts of tomato.As the increase of temperature,sucrose increased in dissepiment of tomato,but decreased in the pulp and peceinic of tomato.Light showed inconstant effect on sucrose content in different part of tomato.Greenhouse temperature increased 3~5℃ [mostly(27±2)℃] accompanying the light increase of 10 000 lx(mostly 30 000 lx) showed significantly positive effect on the content of sucrose,fructose,and soluble sugar in tomato.