摘要
[Objective] This study was conducted to evaluate the effects of environmental factors on the biological characteristics of tomatoes.[Method] The growth traits such as plant height,stem diameter,leaf shape index of tomato plants grown under different environmental conditions（temperature,light and soil moisture content）were measured and compared.[Result] The effect of light on tomatoes was higher than that of soil moisture in high-temperature environment（30 ℃ or higher）;while the speed of tomato plant growth and fruit development were improved by low light.The synthesis of chlorophyll was influenced by soil moisture and light,and greater impact of soil water content on the synthesis of chlorophyll was observed.Among the three treatments,the chlorophyll content of all the three tomato cultivars was in a descending order as follows：control〉 shading treatment〉 drought treatment.[Conclusion] This study will provide references for the control of temperature,light and soil water in tomato cultivation.
[目的]探讨环境因子对番茄生长发育的影响。[方法]在温室内测定不同环境因子(温度、光照、土壤含水量)条件下番茄生长性状指数。[结果]当番茄生长发育处在高温环境(≥30℃)时,光照对番茄生长和果实发育产生的影响要高于土壤含水量,降低光照,可提高番茄的生长和果实发育的速度;土壤含水量和光照对叶绿素的合成均有影响,土壤含水量对叶绿素合成的影响更显著,3个品种中番茄叶绿素含量由高到低依次为:对照组>遮阴组>干旱组。[结论]该研究为设施番茄栽培中温度、光照、土壤含水量控制提供依据。
基金
Supported by the Fund from Ministry of Science and Technology of China for Comparative Study on Chinese and Russian Diversified Vegetable Genetic Resources
the Fund from China Green Food Association for Beijing Green Agriculture about Breeding of New Vegetable Varieties(2007163)~~
