发光二极管日积累光照量对辣椒、黄瓜和生菜幼苗生长的影响  

Effects of daily light integrals of light emitting diode on the growth of pepper,cucumber and lettuce seedlings

作　　者：齐振宇[1] 胡玉屏 蔡溧聪 董桑婕 喻景权[2] 周艳虹[2] QI Zhenyu;HU Yuping;CAI Licong;DONG Sangjie;YU Jingquan;ZHOU Yanhong(Agricultural Experiment Station,Zhejiang University,Hangzhou 310058,China;Department of Horticulture,College of Agriculture and Biotechnology,Zhejiang University,Hangzhou 310058,China)

机构地区：[1]浙江大学农业试验站,杭州310058 [2]浙江大学农业与生物技术学院园艺系,杭州310058

出　　处：《浙江大学学报（农业与生命科学版）》2022年第2期141-153,共13页Journal of Zhejiang University:Agriculture and Life Sciences

基　　金：浙江省重点研发计划(2018C02010);国家现代产业技术体系建设项目(CARS-24-B-01);国家重点研发计划(2019YFD1001900)。

摘　　要：以辣椒‘博辣红帅’、黄瓜‘津研4号’、生菜‘巴达维亚’为试验材料,设置160、200、240μmol/(m^(2)•s)3组不同的光量子通量密度(photosynthetic photonfluxdensity,PPFD)和12、15、18 h/d 3组不同的光周期,共组成8组不同的日积累光照量(daily lightintegral,DLI)处理进行试验,以研究发光二极管(light emittingdiode,LED)的DLI对辣椒、黄瓜和生菜幼苗生长的影响。结果表明:PPFD为160μmol/(m^(2)•s),光周期为15 h/d[DLI为8.6 mol/(m^(2)•d)]的光照条件最适宜‘博辣红帅’辣椒幼苗的生长;PPFD为200μmol/(m^(2)•s),光周期为15 h/d[DLI为10.8 mol/(m^(2)•d)]的光照条件最适宜‘津研4号’黄瓜幼苗的生长;PPFD为200μmol/(m^(2)•s),光周期为18 h/d[DLI为13.0 mol/(m^(2)•d)]的光照条件最适宜‘巴达维亚’生菜幼苗的生长。本研究结果为蔬菜工厂化育苗提供了优化的LED光环境参数。Taking pepper‘Bola Hongshuai’,cucumber‘Jinyan No.4’and lettuce‘Batavia’as experimental materials,the combinations of three groups of photosynthetic photon flux density(PPFD)[160,200 and 240μmol/(m^(2)•s)]and three groups of photoperiod(12,15,18 h/d)were set up to form eight groups of different daily light integral(DLI)treatments to study the effects of DLIs of light emitting diode(LED)on the growth of their seedlings.The results showed that the optimal light conditions were PPFD of 160μmol/(m^(2)•s)with photoperiod of 15 h/d[DLI of 8.6 mol/(m^(2)•d)]for‘Bola Hongshuai’pepper seedlings,PPFD of 200μmol/(m^(2)•s)with photoperiod of 15 h/d[DLI of 10.8 mol/(m^(2)•d)]for‘Jinyan No.4’cucumber seedlings,and PPFD of 200μmol/(m^(2)•s)with photoperiod of 18 h/d[DLI of 13.0 mol/(m^(2)•d)]for‘Batavia’lettuce seedlings.The results provide optimized LED light environment parameters for vegetable seedling production.

关 键 词：辣椒 黄瓜 生菜 光量子通量密度 日积累光照量 

分 类 号：S62[农业科学—园艺学]