不同光质对小白菜叶片发育和光合作用的影响  

Effects of Different Light Quality on Leaf Development and Photosynthesis of Pakchoi

作　　者：樊小雪[1] 高文瑞[1] 孙艳军[1] 李德翠[1] 史珑燕[1] 韩冰[1] 徐刚[1] FAN Xiaoxue;GAO Wenrui;SUN Yanjun;LI Decui;SHI Longyan;HAN Bing;XU Gang(Institute of Vegetable Crops,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China)

机构地区：[1]江苏省农业科学院蔬菜研究所,江苏南京210014

出　　处：《信阳师范学院学报（自然科学版）》2018年第4期562-567,共6页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(31501804);江苏省现代农业(蔬菜)产业技术体系岗位专家项目(SXGC[2017]264);江苏省高效园艺作物遗传改良重点实验室项目

摘　　要：以小白菜(Brassica campestris ssp.chinensis.Makino)为材料,利用LED光精量调制光源,设镝灯(CK)、单色黄光(Y) LED、单色绿光(G) LED、单色蓝光(B) LED、单色红光(R) LED等5个不同光处理,研究了不同光质对小白菜生长、光合作用以及叶片发育的影响.结果表明:蓝光处理下叶片发育较好,叶片栅栏组织和海绵组织的厚度增加;气孔发育呈椭圆形,开口较大,单位面积气孔频度较高;蓝光处理下小白菜净光合速率、蒸腾速率、气孔导度和胞间二氧化碳浓度较高.The aim of this study was to evaluate the effects of different light quality of light emitting diode(LED)on the growth,photosynthesis and leaf development of pakchoi plants(Brassica campestris ssp.chinensis.Makino).Lighting experiments were performed 5 treatments which applied with LED light:red light(R),blue light(B),green light(G),yellow light(Y)and dysprosium lamp(CK).The results showed that,the leaf structure developed well with the tight and thick palisade tissue and spongy tissue under blue LED,meanwhile the porosity develop in elliptic and with higher stomatal frequency per unit area.The photosynthetic rate,transpiration rate,stomatal conductance and intercellular CO 2 concentration were also higher under blue LED.

关 键 词：小白菜 LED光 生长 叶片结构 光合作用 

分 类 号：S626.9[农业科学—园艺学]