摘要
为确定高山茭白植株的合理剪叶时期,以单季茭品种美人茭为试材,以15 d为梯度设3个剪叶时期处理,分析不同剪叶时期对茭白锈病、胡麻斑病的防治效果及雄灰茭率、采茭期、产量等主要性状的表现。结果表明,剪叶处理对病害具有显著的控制效果,与不剪叶相比,在药剂防治次数减少2次的情况下,对锈病防治效果为36.20%~48.90%,对胡麻斑病防治效果为22.70%~58.16%,采茭期推迟4~28 d,净茭率提高2.4%~4.7%,有效分蘖数、雄灰茭率及产量无显著差异。综合不同时期剪叶处理对茭白的病害控制效果及主要经济性状分析,高山茭白5月20日剪叶处理效果最佳。
The reasonable period of leaf cutting were investigated in the single season cultivar of Zizania latifolia named as Meirenjiao in this research,three treatments of leaf cutting period with 15 days as the gradient were set,the control effect of different treatments on Z.latifolia rust and flax leaf spot were analyzed,as well as the main characters of male gray Z.latifolia,harvest period and yield in the field.The results showed that the disease was significantly controlled by leaf cutting.Compared with the treatment of no leaf cutting,the control effect on rust and flax leaf spot were 0.23%to 0.58%and 0.20%to 0.55%respectively,under the condition of reducing two times of chemical control in the field.The harvest time was delayed about 4 to 28 days,while the net Z.latifolia rate was increased by 2.4%to 4.7%.There was no significant difference in effective tillers,the rate of male gray Z.latifolia and yield in the field.Based on the analysis of the disease control effect and main economic characters of Z.latifolia among different treatments,the best effect of cutting leaves was the period on May 20.
作者
马雅敏
崔海峰
王来亮
MAYangmin;CUI Haifeng;WANG Lailiang(Lishui Academy of Agricultural and Forestry Sciences,Lishui 323000,Zhejiang,China;Zhejiang Provincial Key Laboratory of Biometrology and Inspection/College of Life Sciences,China Metrology University,Hangzhou 310018,Zhejiang,China;Agricultural and Rural Bureau of Jinyun County,Jinyun 321400,Zhejiang,China)
出处
《中国瓜菜》
CAS
北大核心
2021年第9期92-95,共4页
China Cucurbits And Vegetables
基金
浙江省公益技术研究计划(LGN19C150003)
浙江省重点研发计划(2020C02053)
现代农业产业技术体系专项资金资助(CARS-24-G-06)
缙云茭白产业倍增“163”行动计划专项(2018ydhz01)。
关键词
茭白
剪叶
病害防效
产量
结茭期
Z.latifolia
Cutting leaves
Effect of disease control
Yield
Swolling stage
