基质添加聚天门冬氨酸对番茄幼苗生长的影响  

Effect of Substrate Adding Polyaspartic Acid on Tomato Seedlings Growth

作　　者：李梦露 冯晓洁 王君 孙敏涛 闫妍[1] 贺超兴[1] 于贤昌[1] 李衍素[1] LI Menglu;FENG Xiaojie;WANG Jun;SUN Mintao;YAN Yan;HE Chaoxing;YU Xianchang;LI Yansu(Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences,Beijing 100081,China)

机构地区：[1]中国农业科学院蔬菜花卉研究所,北京100081

出　　处：《中国蔬菜》2022年第11期65-69,共5页China Vegetables

基　　金：山东省重大科技创新工程项目(2019JZZY010707);国家现代农业产业技术体系建设专项(CARS-25-C-01);中国农业科学院科技创新工程项目(CAAS-ASTIP-IVFCAAS);农业农村部园艺作物生物学与种质创制重点试验室项目。

摘　　要：聚天门冬氨酸(PASP)通过促进植株对矿质元素的吸收进而促进植物生长。为探究聚天门冬氨酸对设施番茄幼苗生长的促进作用,以中杂9号为试材,比较分析了基质添加不同比例聚天门冬氨酸对番茄幼苗生长的影响。结果表明:与对照相比,基质添加聚天门冬氨酸促进了番茄幼苗生长及干物质积累,提高了叶片叶绿素含量、净光合速率和根系活力;其中,添加36.4 g·kg^(-1)聚天门冬氨酸处理的综合效果最佳,壮苗指数最高。Polyaspartic acid(PASP)can improve the plant growth through promoting mineral elements uptake.In order to explore the promoting effect of PASP on tomato seedlings,this experiment took‘Zhongza No.9’as test material,analyzed the effect of adding different ratioes PASP to substrate on tomato seedling growth.The results indicated that comparing with the contrast,adding polyaspartic acid to substrate could accelerate tomato seedling growth and dry matter accumulation,increase chlorophyll content,net photosynthetic rate(Pn)and root activity.Among all treatments,the comprehensive effect of adding 36.4 g·kg^(-1) PASP to substrate treatment was the best,and the seedling index was the highest.

关 键 词：番茄 聚天门冬氨酸 幼苗生长 矿质元素 

分 类 号：S641.2[农业科学—蔬菜学]