【作者】 陈宗玲； 王红清； 刘国杰； 孟昭清；

【Author】 CHEN Zong-ling,WANG Hong-qing,LIU Guo-jie,MENG Zhao-qing (College of Agriculture and Biotechnology, China Agricultural University,Beijing 100193)

【机构】 中国农业大学农学与生物技术学院；

【摘要】 本试验采用立体A字架上的栽培槽,以蛭石和草炭土为混合基质栽培‘枥乙女’草莓,立体架分三层,各东西面共分6个不同位置,分别对草莓的光温环境、光合性能、营养及生殖生长进行了研究。结果表明,上层光照好于中、下层,面东与面西上层光照基本相同,但中、下层明显差异,上午时段,面东栽植的中、下层草莓受光好于面西栽植的,下午时段,面西栽植的中、下层草莓好于面东栽植的。栽培槽内温度上午时段,上层槽内温度低于中、下层的;下午时段,上层槽内温度又高于中、下层,总体上,上层槽内温度高于中、下层,面东与面西没有显著差异。面东与面西上、中、下三层的叶片净光合速率日变化规律基本相同,均呈单峰曲线型,但日变化过程中,面东与面西均是上层的净光合速率明显高于中层,中层的净光合速率更明显高于下层。草莓净光合速率的大小主要受光合有效辐射大小的影响,另外受气孔导度的影响。上层草莓的株高、叶片长和宽均明显高于中、下层的。上层草莓单株叶片数也明显多于中下层。从前期结果看,结果总数目、果实大小及果实成熟度的程度顺序均是面东上层、面西上层、面西中层、面东中层、面西下层及面东下层。从1月份总产量看,上层显著高于中层,中层显著高于下层,面东与面西之间没有显著差异。草莓立体栽培模式下,光照是影响结果产量的最重要因子。更多还原

【Abstract】 ‘Tochiotome’ strawberries(Fragaria×ananassa) were planted in grooves of stereo‘A’ word-shelf,with the mixed matrix consisting of vermiculite and peat soil.The stereo frame with three layers was divided into six different positions because of facing east or west.Their light and temperature environments, photosynthetic characteristics,vegetative and reproduction growths were studied. The results showed that the light intensity of upper layer was preferred to middle and lower layers,which was basically same between facing east and west.But there was distinct discrepancy between middle layer and lower layer.Before noon,the light intensity of middle and lower layers facing east was better than that of facing west,while that was opposite after noon.The groove temperature in upper layer was lower than that in middle and lower layers before noon,while that was also opposite after noon.But in sum,the groove temperature of upper layer was higher than that of middle and lower layers,no marked difference between facing east and facing west.The diurnal change rule of leaf photosynthetic rate was basically same, showing a single peaked rate.However,upper layer’s was obviously higher than middle layer’s,and the latter was also higher than lower layer’s whether facing east or west.The photosynthetic rate of strawberry leaf was mainly impacted by photosynthetically active radiation,also stomatal conductance.Results also showed that plant height,leaf length and leaf width of upper layer was significantly higher than those of middle and lower layers.Leaf numbers of single plant of upper layer was significantly more than those of middle and lower layers.Besides,observing the prophase fruit setting status,the order of all of the total numbers of fruits, fruit size,and fruit maturity was upper layer facing east,upper layer facing west, middle layer facing east,middle layer facing east,lower layer facing east and lower layer facing west.Moreover,the total of January yield in upper layers in strawberry was significantly more than that in middle layers,and the yield in middle layer was significantly more than that in lower layers.The light intensity was the most important factor in fruiting yield in strawberry under solid mode cultivation.更多还原