播期对黄河流域棉花苗蚜种群动态和棉花产量的影响  

Influence of sowing dates on cotton seedling aphid populationdynamics and cotton yield in the yellow river basin

作　　者：李耀发[1] 安静杰[1] 窦亚楠 孙小诺 张谦[4] 柳春红[1] 党志红[1] 高占林[1] LI Yaofa;AN Jingjie;DOU Ya'nan;SUN Xiaonuo;ZHANG Qian;LIU Chunhong;DANG Zhihong;GAO Zhanlin(Plant Protection Institute,Hebei Academy of Agricultural and Forestry Sciences/IPM Center of Hebei Province/Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China,Ministry of Agriculture and Rural Affairs.Baoding Hebei 071000,China;Vegetable Technology Popularization Station of Baoding,Baoding Hebei 071000,China;Baoding Meteorological Bureau of Hebei Province,Baoding Hebei 071000,China;Institute of Cotton,Hebei Academy of Agriculture and Forestry Sciences,Shijiazhuang 050051,China)

机构地区：[1]河北省农林科学院植物保护研究所/河北省农业有害生物综合防治工程技术研究中心/农业农村部华北北部作物有害生物综合治理重点实验室,河北保定071000 [2]保定市蔬菜技术推广站,河北保定071000 [3]保定市气象局,河北保定071000 [4]河北省农林科学院棉花研究所,石家庄050051

出　　处：《新疆农业科学》2023年第10期2496-2500,共5页Xinjiang Agricultural Sciences

基　　金：国家重点研发计划项目(2017YFD0201906);河北省棉花产业技术体系(HBCT2018040204)。

摘　　要：【目的】研究播期对棉花苗蚜种群动态和棉花产量的影响。【方法】于我国冀南棉区研究4月16日、4月26日和5月6日三个播期对棉花出苗、苗期蚜虫种群动态及棉花产量相关参数的影响。【结果】随着播期的推迟,棉花出苗率呈增高趋势,4月26日和5月6日播种处理的棉花出苗率显著高于4月16日。4月16日和4月26日播种处理的棉田苗蚜均出现了明显的发生高峰和蚜量快速下降过程,而5月6日播种的处理,苗蚜始终未出现明显高峰。随着播期的推迟,棉花单行产量也从3.94 kg(4月16日)增至5.46 kg(5月6日),表现出明显增产。【结论】适当推迟播期能起到保苗、减轻早期蚜害和保证产量的效果。【Objective】The population of cotton aphid migrating from overwintering host to cotton field and the environmental conditions in the Yellow River Basin are important factors for the damage caused by this aphid.The paper aims to clarify the effect of sowing date on the aphid population dynamics and cotton yield.【Methods】Effects of the sowing date April 16,April 26 and May 6 on the aphid population dynamics and cotton yield parameters were studied in cotton field of southern Hebei Province.【Results】The results showed that the cotton emergence rate increased with the delay of sowing period,and the cotton emergence rates on April 26 and May 6 were significantly higher than that on April 16.There was an obvious peak of cotton aphids in spring occurrence and a rapid decrease of aphid quantity in the treatments of April 16 and April 26,while there was no obvious peak of Aphids in spring in the treatments of May 6.In terms of yield,cotton yield increased significantly from 3.94 kg(April 16)to 5.46 kg(May 6)with the delay of sowing period.【Conclusion】Postponing the sowing dates of cotton can play the role of protecting seedling,reducing early aphid damage and ensuring yield.

关 键 词：黄河流域棉区 播期 棉蚜 产量 

分 类 号：S433.3[农业科学—农业昆虫与害虫防治]