立体栽培草莓的光温效应及其对光合的影响  

Light and temperature and their effects on photosynthesis characteristics of stereoscopic cultivation in strawberry

作　　者：陈宗玲[1] 刘鹏 张斌[1] 汪佳易[1] 宋生印[1] 王红清[1] 

机构地区：[1]中国农业大学农学与生物技术学院,北京100193 [2]北京市丰台区科学技术委员会,北京100071

出　　处：《中国农业大学学报》2011年第1期42-48,共7页Journal of China Agricultural University

基　　金：国家科技支撑计划项目(2007BAD3602)

摘　　要：选用中型玻璃温室、中型塑料温室和大型塑料温室3种日光温室,采用立体A字架模式下,基质栽培‘章姬’草莓,研究温室环境对立体栽培草莓光合的影响。结果表明:立体架上层草莓根际温度高于中、下层。上层草莓叶片净光合速率日变化呈双峰型,而中、下层呈单峰型。面东与面西草莓叶片净光合速率及光合有效辐射日变化在中、下层有显著差异。中、下层叶片日平均光合有效辐射值分别为上层的51.21%～62.49%和33.64%～44.86%,日平均净光合速率分别为上层的62.42%～77.98%和42.14%～53.51%。表明‘章姬’草莓对弱光环境具有一定的适应能力。相关性分析结果显示,温室立体栽培模式下草莓叶片的净光合速率的大小以受光合有效辐射大小的影响为主,受空气温度的影响为辅,且不受根际温度影响的制约。＇Akihime＇ strawberries（Fragaria×ananassa Duch.）were planted in grooves of an A-frame with the mixed substrate in three different greenhouses（medium-scale glass greenhouse,medium-scale plastic greenhouse and large-scale plastic greenhouse）.The effects of greenhouse conditions on photosynthetic characteristics were evaluated.The results showed that the root temperature of plants in upper tier was higher than middle and lower tiers＇ on an A-frame.The daily variation of net photosynthetic rate showed double-peak in upper tier,while single-peak in middle and lower tiers.The daily variation of net photosynthetic rate and photosynthetic active radiation displayed great discrepancy between facing east and facing west in middle tier and lower tier.The leaf photosynthetic active radiation in middle and lower tiers were 51.21%-62.49%,33.64%-44.86% of upper tier,while their net photosynthetic rates could reach to 62.42%-77.98%,42.14%-53.51% of upper tier.It indicated that ＇Akihime＇ strawberry had some adaptive capacity under low light environment.Correlation analysis indicated that the leaf net photosynthetic rate was closely related to photosynthetic active radiation and air temperature,but almost not related to root temperature.

关 键 词：草莓 立体栽培 日光温室 光温效应 光合性能 

分 类 号：S668.4[农业科学—果树学]