烤烟漂浮育苗隐性感染烟苗危害损失研究和防治药剂筛选  

Study on the Damage Loss of Tobacco Seedlings by Recessive Infection in Tobacco Float Seedling Production and Screening of Control Agents

作　　者：何晓冰 王颢杰 李俊营 常栋[1] 周硕野 孟颢光[2] 蒋士君[2] 崔江宽 HE Xiaobing;WANG Haojie;LI Junying;CHANG Dong;ZHOU Shuoye;MENG Haoguang;JIANG Shijun;CUI Jiangkuan(Henan Tobacco Company Pingdingshan City Company,Pingdingshan Henan 467000,China;College of Plant Protection,Henan Agricultural University,Zhengzhou 450046,China;Henan Tobacco Monopoly Bureau(Company),Zhengzhou 450018,China)

机构地区：[1]河南省烟草公司平顶山市公司,河南平顶山467000 [2]河南农业大学植物保护学院,郑州450046 [3]河南省烟草专卖局(公司),郑州450018

出　　处：《植物医学》2024年第3期61-71,共11页Plant Health and Medicine

基　　金：河南省烟草公司平顶山市公司科技项目(PYKJ202102);中国烟草总公司河南省公司重点项目(2023410000240023)。

摘　　要：近年来,黄淮烟区烤烟漂浮育苗隐性感染问题日趋严重且难以预防,严重影响了大田烟株的健康,筛选有效的植物生长调节剂防治隐性感染烟苗,对提升烤烟抗病抗逆性具有重要意义.本研究采用3种植物生长调节剂(安必神、田佰利、阿泰灵)及不同浓度的次氯酸钠(1000倍液、2000倍液、4000倍液)进行单剂和复配处理,针对不同等级的隐性感染烟苗进行注射灌根,以清水处理和0级烟苗为双重对照,14 d后统计不同处理对隐性感染烟苗农艺性状、根活力和MDA摩尔质量的影响.结果显示,植物生长调节剂处理对隐性感染1级和2级烟苗防效显著.次氯酸钠2000倍液与阿泰灵复配处理,相比于清水对照,能明显提升1级和2级烟苗的根长、侧根数、最大叶面积、叶绿素含量、根活力,分别提升了76.36%,57.94%,17.18%,55.67%,41.29%和32.14%,77.18%,54.67%,25.89%,28.47%;MDA摩尔质量分别降低了31.93%和37.20%;同时将1级和2级烟苗根活力提升至0级烟苗的102.91%和79.92%,而3级和4级烟苗则仅提升至0级烟苗的65.85%和36.88%.由结果可知,次氯酸钠2000倍液与阿泰灵复配处理可快速提升隐性感染1级和2级烟苗根系活力,增强烟苗抗病抗逆性,虽然对隐性感染3级和4级烟苗的防治效果较差,仍推荐选用次氯酸钠2000倍液和阿泰灵复配处理防治隐性感染烟苗.In recent years,the problem of recessive infection of flue-cured tobacco float seedling production in Huang-Huai tobacco area has gradually increased and is difficult to prevent,which seriously affects the health of tobacco plants in the field.Screening plant growth regulators for effective prevention and treatment of recessive infected tobacco seedlings is of great significance to improve the disease resistance and stress resistance of flue-cured tobacco.Three kinds of plant growth regulators(Anbishen,Tianbaili and Atailing)and different concentrations of sodium hypochlorite(1000-,2000-and 4000-times dilution)were used for single and compound treatment.Different grades of recessive infected tobacco seedlings were selected for the treatment of injection and root irrigation,with water treatment and grade 0 tobacco seedlings as double controls.After 14 days,the effects of different treatments on agronomic traits,root activity and MDA content of recessive infected tobacco seedlings were investigated.The results showed that the plant growth regulator treatment had good control effect on the recessive infection of grade 1 and grade 2 tobacco seedlings.Compared with the water treatment,the root length,lateral root number,maximum leaf area,chlorophyll content and root activity of grade 1 and grade 2 tobacco seedlings were increased by 76.36%,57.94%,17.18%,55.67%,41.29%and 32.14%,77.18%,54.67%,25.89%,28.47%,respectively,and the MDA content was decreased by 31.93%and 37.20%,respectively.The root activity of grade 1 and grade 2 tobacco seedlings was increased to 102.91%and 79.92%of grade 0 tobacco seedlings,while grade 3 and grade 4 tobacco seedlings only increased to 65.85%and 36.88%of grade 0 tobacco seedlings.After treatment,the root activity of tobacco seedlings with recessive infection grade 1 and grade 2 could be rapidly improved,and the disease resistance and stress resistance of tobacco seedlings could be enhanced.The control effect on tobacco seedlings with recessive infection grade 3 and grade 4 was poor.It is re

关 键 词：漂浮育苗 隐性感染烟苗 抗病抗逆性 阿泰灵 

分 类 号：S435.72[农业科学—农业昆虫与害虫防治]