立体栽培条件下光温环境对生菜生长和生理特征影响  

Effects of light and temperature on growth and development of lettuce in stereoscopic cultivation

作　　者：周静[1] 李萍萍[1] 王纪章[1] 卢佳俊 

机构地区：[1]江苏大学现代农业装备与技术省部共建教育部重点实验室,江苏镇江212013

出　　处：《江苏大学学报（自然科学版）》2016年第5期530-535,共6页Journal of Jiangsu University：Natural Science Edition

基　　金：江苏省农业科技支撑计划项目(BE2014406;BK2010347);江苏省博士后基金资助项目(1501112B);江苏省普通高校研究生科研创新计划项目(KYLX15_1084)

摘　　要：以意大利全年耐抽苔生菜为材料,研究温室多层立体栽培条件下各层光温环境对生菜产量和形态、叶绿素含量和叶绿素荧光参数的影响.结果表明：栽培架中层日平均光辐射强度仅相当于上层的36.4%～45.6%,下层仅相当于上层的24.8%～37.3%;晴天10：00—16：00时段光辐射强度相对较高时,各层温度差异明显,中层温度为上层的84.8%,下层为上层的73.2%;最上层生菜地上部鲜质量、叶片数、主茎高度、叶面积均高于中层、下层.对叶绿素荧光参数的分析表明：随着立体栽培中层和下层光照和温度降低,电子传递的量子效率Y（Ⅱ）、表观光合电子传递速率ETR逐渐降低,非调节性能量耗散的量子产量Y（NO）和调节性能量耗散的量子产量Y（NPQ）逐渐升高.本试验的结果表明,温室多层立体栽培模式下生菜的产量和光合能力受光辐射强度和温度的影响显著.Using romaine lettuce （lactuca sativa L. ） as material , the effects of light and temperature greenhouse on yield , morphology , chlorophyll content and chlorophyll fluorescence parameters were investigated under the condition of stereoscopic cultivation. The results show that the light radiation intensities in middle layer and in lower layer are 36. 4 % to 45. 6 % and 24. upper layer,respectively. The light radiation intensity is relatively high in sunny day at 10 ：00 to 16：00.The temperature is significantly different in the three layers , and the temperatures in the middle and in the lower layers are 84. 8 % and 73. 2 % of that in the upper layer, respectively. Fresh weigh , leave number , stem height and leaf area of lettuce of upper layer are all higher than those of layers. The analysis on chlorophyll fluorescence parameters shows that with the decreasing and temperature in the middle and lower layers , F（n） and ETR are decreased , while F（N0 ）aincreased. Lettuce yield and photosynthetic capacity are significantly influenced by light and tempera

关 键 词：生菜 立体栽培 光辐射强度 温度 叶绿素荧光参数 

分 类 号：S668[农业科学—果树学]