6%抗坏血酸水剂与0.2%苯丙烯菌酮微乳剂在茶树上的应用效果  

Effect of vitamin C 6%aqueous solution and isobavachalcone 0.2%micro-emulsion on tea plant

作　　者：冯月玲 朱英[2] 毛堂芬[2] 刘思睿 陈兴龙 吴元竞 宋诗颖 刘辉[2] 宋莉 FENG Yueling;ZHU Ying;MAO Tangfen;LIU Sirui;CHEN Xinglong;WU Yuanjing;SONG Shiying;LIU hui;SONG Li(Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region,Ministry of Education,College of Life Sciences/Institute of Agro-bioengineering,Guizhou University,Guiyang 550025,China;Institute of Biotechnology,Guizhou Academy of Agricultural Sciences/Guizhou Provincial Key Laboratory of Agricultural Biotechnology,Guiyang 550009,China;Guizhou Tiangui Tea Industry Co.Ltd.,Guiyang 550021,China;Guizhou Falaidi Agricultural Technology Co.,Ltd.,Longli 551202,Guizhou,China)

机构地区：[1]贵州大学生命科学学院/农业生物工程研究院,山地植物资源保护与保护种质创新教育部重点实验,贵阳550025 [2]贵州省农业科学院生物技术研究所/贵州省农业生物技术重点实验室,贵阳550009 [3]贵州天贵茶业有限公司,贵阳550021 [4]贵州发来地农业科技有限公司,贵州龙里551202

出　　处：《农药》2023年第9期675-679,683,共6页Agrochemicals

基　　金：贵阳市科技创新一般项目(筑科合同[2022]3-19号);贵州省科技支撑计划项目(黔科合支撑[2021]一般192);黔南州科技支撑计划项目(黔南科合[2022]01号)。

摘　　要：[目的]为6%抗坏血酸水剂与0.2%苯丙烯菌酮微乳剂共施在茶园应用提供理论指导。[方法]采用常规喷雾法,将6%抗坏血酸水剂45.00 g a.i./hm^(2)和0.2%苯丙烯菌酮微乳剂32.14 g a.i./hm^(2)应用于茶炭疽病和茶饼病防治。[结果]2种药剂共施对茶饼病和茶炭疽病的防效具有协同作用,防效分别达到70.23%、73.67%,与单施对照药剂25%吡唑醚菌酯水分散粒剂的效果无显著差异,但共施的增产效果是对照药剂的6倍。同时,2种药剂共施可提升茶叶茶多酚和氨基酸含量,而酚氨比显著降低。[结论]6%抗坏血酸水剂与0.2%苯丙烯菌酮微乳剂共施可增强茶树抗病性,提升茶叶产量和品质。[Aims]To provide theoretical guidance for the application of vitamin C 6%aqueous solution and isobavachalcone 0.2%micro-emulsion together in tea plants.[Methods]Vitamin C 6%AS 45.00 g a.i./ha and isobavachalcone 0.2%ME 32.14 g a.i./ha were applied to control tea anthracnose and tea blister blight with conventional spray method.[Results]The combined application of the two agents had a synergistic effect on controlling tea blister blight and tea anthracnose.The control efficiency for tea blister blight and tea anthracnose reached 70.23%and 73.67%,respectively,which was not significantly different from that of the control agent pyraclostrobin 25%WG.However,the increased yield of tea treated by the combined agents was 6 times that of pyraclostrobin 25%WG.At the same time,the contents of polyphenols and amino acids in tea were increased by the co-application of the two agents,while the phenol-ammonia ratio was significantly decreased.[Conclusions]The combination of vitamin C 6%AS and isobavachalcone 0.2%ME can enhance the disease resistance of tea plants and improve the yield and quality of tea.

关 键 词：茶树 茶饼病 茶炭疽病 抗坏血酸 苯丙烯菌酮 

分 类 号：S482.2[农业科学—农药学]