夜间不同时段低温对番茄光合产物积累与分配的影响  

Effects of Different Time Low-temperature at Night on Dry Matter Accumulation and Distribution in Tomato

作　　者：王丽娟[1] 李天来[1] 崔娜[1] 

机构地区：[1]沈阳农业大学园艺学院辽宁省设施园艺重点实验室

出　　处：《沈阳农业大学学报》2006年第6期811-815,共5页Journal of Shenyang Agricultural University

基　　金：国家自然科学基金资助项目(20170640);辽宁省自然科学基金资助项目(20022080)

摘　　要：针对温室番茄栽培中常采用的低夜温管理而造成生育障碍,影响物质的积累与分配,从而降低产量和品质等问题,以夜温15℃为对照,研究夜间不同时间段6℃低温处理及其恢复对番茄光合产物积累与分配的影响。结果表明:夜间不同时段低温处理明显降低植株的株高、株幅和植株的干物质积累总量,恢复7d后仍呈降低趋势;夜间不同时段低温影响光合产物的运输及向根、茎和叶中的分配比率,并导致叶片中糖和淀粉的积累。试验所设处理中,以整夜低温处理对番茄的影响最大,其次为前半夜低温处理,后半夜低温处理影响程度最小。The low night temperature at different period of time on tomato in the management of low night temperature cause fertility handicap, affect the accumulation and distribution of matter and reduce yield and quality. The effects of 6℃ treatment and recovery of low night temperature at different periods of time on tomato photosynthetic production on tomato photosynthetic production and distribution were studied using 15℃ as control. The plant height, scope and gross dry matter accumulation decreased in low night temperature at different period of time, and the same trend was observed after 7 days recovery. The transportation of photosynthetic production and distribution ratio to root, stem and leaves were affected by low night temperature at different period of time, and the accumulation of sugar and starch were also affected. The effect was most significant for low temperature treatment of the whole night in the experiment, followed by low night temperature before midnight,and lightest at second half of night.

关 键 词：番茄(L. ESCULENTUM Mill) 夜间低温 积累与分配 

分 类 号：S641.2[农业科学—蔬菜学]