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| Effects of New Type Seedling Culture with UV-B Supplementary Light Lamp on Growth，Resistance Physiology and Disease Resistance of Eggplant Seedling |
| LI Wen1，FU Minjie1，FANG Yue1，ZHANG E1，ZHU Biao1，ZHU Zhiyu1，WU Jianguo1*，ZHU Zhujun1，WANG Yunxia2，ZHU Yueqing3，LI Jie4 |
| 1College of Agriculture and Food Science，Zhejiang A&F University，Key Laboratory for Agricultural Product Quality Improvement Research of Zhejiang Province，Hangzhou 311300，Zhejiang，China；2Hangzhou Small Sun Agricultural Science and Technology Co.， Ltd.，Hangzhou 311300，Zhejiang，China；3Linan District Agriculture and Rural Affairs Bureau of Hangzhou City，Hangzhou 311300，hejiang，China；4College of Chemistry and Materials Engineering，Zhejiang A&F University，Hangzhou 311300， Zhejiang，China |
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Abstract In order to explore the effect of UV-B light supplement lamp in eggplant seedling culture，this paper took eggplant variety‘Hangqie No.1’as test material；set up 3 treatments，respectively including UV-B light supplement（with low-dose UV-B band），ordinary light supplement and no light supplement（the contrast）；and explored the effects of different light supplement treatments on eggplant seedling growth and resistance physiology．The paper also studied the effects of different light supplement treatments on eggplant seedling disease resistance by indoor determination of UV-B light supplement on pathogen activity，and conducting experiment on pathogenicity at seedling stage．The results showed that the plant height，stem diameter，leaf area，chlorophyll content and ascorbate peroxidase activity（APX），peroxidase（POD），catalase（CAT），superoxide dismutase（SOD），etc. enzym activities of eggplant seedlings were all significantly different from those of the contrast．Among them，the seedling index under UV-B light supplement was the best．In addition，after UV light supplementation treatment，the disease indexes of eggplant seedlings gray mold，anthracnose，and early blight were reduced sharply．Results also indicated that appropriate UV light supplement inside of greenhouse could effectively inhibit plant excessive growth，increase leaf area，raise sound seedling index，enhance antioxidant enzyme activities of leaf blades resistance，and improve plant disease resistance．
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Received: 12 July 2021
Published: 26 November 2021
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Corresponding Authors:
吴建国，男，博士，教授，硕士生导师，主要从事蔬菜栽培及育种研究，E-mail：jianguowu@zafu.edu.cn
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