不同LED光源对青蒜苗生长及叶绿素荧光特性的影响  

Effects of Different Light Emitting Diode Sources on Growth and Chlorophyll Fluorescence Parameters in Garlic Seedling

作　　者：杨晓建[1] 刘世琦[1] 张自坤[1] 刘中良[2] 马琳[1] 张宇[1] 

机构地区：[1]山东农业大学园艺科学与工程学院作物生物学国家重点实验室,山东泰安271018 [2]滁州职业技术学院,安徽滁州239000

出　　处：《中国蔬菜》2011年第6期62-67,共6页China Vegetables

基　　金：国家公益性行业(农业)科研专项(200903018);农业部"948"滚动项目(2003T-14)

摘　　要：以发光二极管(LED)精量调制光质(红光、蓝光和红蓝混合色光),以白光(普通日光灯)为对照,研究不同光质对青蒜苗生长及叶绿素荧光特性的影响。结果表明:不同光质对青蒜苗生长及叶绿素荧光特性具有显著或极显著影响,红光处理下株高、假茎粗、假茎长、地上部干质量/鲜质量均最高,极显著高于对照和其他处理,而叶绿素总量及类胡萝卜素含量均以白光处理最高,光合速率、蒸腾速率、气孔导度均以红光处理最大,胞间CO2浓度以白光处理最大;不同光质处理对青蒜苗的叶绿素荧光参数有较大影响,红蓝混合色光处理下Fv/Fm和Fv/Fo均最大,ΦPSⅡ为白光处理最高,但与红光处理差异不显著。红光有利于提高青蒜苗的光合速率,进而促进青蒜苗的生长及干物质积累。This paper studied on the effects of different light qualities on growth and chlorophyll fluorescence parameters of garlic(Allium sativum L.)seedling.Red light,blue light,red+blue(R+B)light generated by light-emitting diode were applied,and white light generated by fluorescent lamps was used as control.Effects of different light qualities on growth and chlorophyll fluorescence parameters of garlic seedling were significantly different.The height,diameter,length of pseudo stem and value of dry weight to fres...

关 键 词：青蒜苗 LED光源 生理 叶绿素荧光 

分 类 号：S633.4[农业科学—蔬菜学]