剪叶对双季茭白秋茭病害发生及采茭期、产量等主要性状的影响  

Effects of leaf cutting on disease occurrence,harvest date,yield and other main characters of double-harvest Zizania latifolia in autumn

作　　者：王来亮 钟洋敏 马雅敏 崔海峰 WANG Lailiang;ZHONG Yangmin;MAYamin;CUI Haifeng(Lishui Academy of Agricultural and Forestry Sciences,Lishui 323000,Zhejiang,China;Agricultural and Rural Bureau of Jinyun County,Jinyun 321400,Zhejiang,China;Zhejiang Provincial Key Laboratory of Biometrology and Inspection/College of Life Sciences,China Jiliang University,Hangzhou 310018,Zhejiang,China)

机构地区：[1]丽水市农林科学研究院,浙江丽水323000 [2]浙江省缙云县农业农村局,浙江缙云321400 [3]浙江省生物计量与检验检疫技术重点实验室·中国计量大学生命科学学院,杭州310018

出　　处：《中国瓜菜》2023年第6期64-68,共5页China Cucurbits And Vegetables

基　　金：浙江省自然科学基金探索项目(LTGN23C150006);丽水市重点研发计划项目(2020ZDYF03);浙江省重点研发计划(2020C02053);对标欧盟肥药双控专项(NLKY201304)。

摘　　要：为明确双季茭白秋茭的适宜剪叶方式,以双季茭品种浙茭3号为试材,于6月15日定植,以不同离地高度设重剪(离地高10 cm)、中剪(离地高25 cm)、轻剪(离地高40 cm)3个剪叶处理,以不剪叶为对照,比较分析不同剪叶处理对胡麻斑病、锈病的控制效果及植株分蘖、采茭期、产量等主要性状表现。结果表明,剪叶后植株病情指数显著降低,对胡麻斑病、锈病防治效果分别为43.95%~49.91%、41.06%~47.69%;重剪、中剪处理提高了植株分蘖数、有效分蘖数及小区产量,净茭率分别显著提高6.53%、5.58%,一级茭率分别显著提高5.43%、4.46%。双季茭秋茭以离地高10~25 cm剪叶为宜。In order to clarify the suitable leaf-cutting method for Double-harvest Zizania latifolia,we took the Double-harvest Zizania latifolia Cultivar Zhejiao 3 as the test material and set up three leaf-cutting treatments:heavy(10 cm above the ground),medium(25 cm above the ground)and light(40 cm above the ground)at different heights from the ground,Take no leaf cutting as control,the control effects of different leaf cutting treatments on Helminthosprium zizamae and Rust,as well as the main characteristics of plant tillering,harvesting period,and plot yield,were compared and analyzed.The results showed that the disease index of plants significantly decreased after leaf cutting,and the control effects on Helminthosprium zizamae and Rust were 43.95%~49.91%and 41.06%~47.69%,respectively;The heavy cutting and medium cutting treatments increased the tiller numbers,effective tiller numbers,and plot yield of plants,significantly increasing the net Zizania latifolia rate by 6.53%and 5.58%,and the first level Zizania latifolia rate by 5.43%and 4.46%,respectively.it is appropriate to cut the leaves at the leaf sheath of 10 cm to 25 cm from the ground for Double-harvest Zizania latifolia in autumn.

关 键 词：双季茭白 秋茭 剪叶 病害防效 性状表现 

分 类 号：S645.2[农业科学—蔬菜学]