[1]王海舟,董轶伟,孟 滕.鹤岗地区玉米主要叶斑类病害发生动态[J].黑龙江农业科学,2015,(09):60-63.[doi:10.11942/j.issn1002-2767.2015.09.0060]
　WANG Hai-zhou,DONG Yi-wei,MENG Teng.Epidemic Dynamics of Maize Main Leaf Spot Disease in Hegang Region[J].HEILONGJIANG AGRICULTURAL SCIENCES,2015,(09):60-63.[doi:10.11942/j.issn1002-2767.2015.09.0060]
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鹤岗地区玉米主要叶斑类病害发生动态

《黑龙江农业科学》[ISSN:1002-2767/CN:23-1204/S] 卷: 期数: 2015年09 页码: 60-63 栏目: 出版日期: 2015-09-10
Title:
Epidemic Dynamics of Maize Main Leaf Spot Disease in Hegang Region
文章编号:
1002-2767（2015）09-0060-04
作者:
王海舟1; 董轶伟2; 孟 滕3
1.黑龙江省普阳农场，黑龙江 鹤岗 156213；2.黑龙江省佳木斯市东风区建国镇人民政府， 黑龙江 佳木斯 154026；黑龙江农业职业技术学院，黑龙江 佳木斯 154007
Author(s):
WANG Hai-zhou1; DONG Yi-wei2; MENG Teng3
1.Puyang Farm in Heilongjiang Province,Hegang,Heilongjiang 156213; 2.Jianguo People’s Government of Dongfeng District of Jiamusi in Heilongjiang Province,Jiamusi,Heilongjiang 154026; 3.Heilongjiang Agricultural Vocational and Technical College,Jiamusi,Heilongjiang 154007
关键词:
玉米大斑病; 玉米灰斑病; 玉米弯孢菌叶斑病; 发生动态; 病情指数
Keywords:
Exserohilum turcicum; Cercospora zeae maydis; Curvularia lunata; dynamic; disease index
分类号:
Ｓ435.131
DOI:
10.11942/j.issn1002-2767.2015.09.0060
文献标志码:
A
摘要:
为有效防治鹤岗地区玉米病虫害，于2014年对该区玉米主要叶斑类病害的发生动态进行了调查和分析。结果表明：2014年，鹤岗地区玉米大斑病（Exserohilum turcicum）7月8日开始出现，至8月19日发病率达到100%；整个发病率呈“慢-快-慢”的“S” 曲线动态，病情指数随时间的推移而升高，7月1日之前病情指数为0，到9月16日玉米成熟时达到最高，为47.2；弯孢菌叶斑病（Curvularia lunata）的整个发病率也呈“S” 曲线状，病害明显症状从6月29日开始出现，至8月12日达到100%，病情指数随时间的推移而升高，6月21日之前病情指数为0，到9月16日玉米成熟时达到最高，为22.90；玉米灰斑病（Cercospora zeae?maydis）7月8日开始出现，至8月26日发病率达到最大值94.6%，病情指数随时间推移而升高，7月1日之前为0，到9月2日玉米成熟前达到最高，为11.58。根据Logistic模型分析，在鹤岗地区从始见病斑至7月22日以前是玉米大斑病病情指数的指数增长期， 7月 22日至 9月13日是Logistic增长期，衰退期是9月13日以后；弯孢菌叶斑病病情指数的指数增长期是出苗期为7月10日前，Logistic增长期是7月10日至8月5日，衰退期是8月5日以后；灰斑病病情指数的指数增长期是出苗期到7月29日，Logistic增长期是7月29日至8月12日，衰退期是8月12日以后。
Abstract:
For effective prevention and control of maize plant diseases and insect pests of Hegang region,in 2014,northern leaf blight of maize in Hegang area began in July 8th,in August 19th?the incidence rate up to 100%; the incidence curve was “slow-fast-slow” and “S” shape; disease index of northern maize leaf blight increased along with time,it was 0 before July 1st,and reached the maximum rate of 47.2 on September 16th?when maize matured.The whole incidence curve of maize Curvularia leaf spot was “S” shape,it began to appear from June 29th,in August 12th?the incidence rate of 100%; and gray leaf spot of maize began in July 8th,in August 26th?the incidence rate reached a maximum rate of 94.6%.Disease index of maize Curvularia?leaf spot was 0 before July 21st,and reached the maximum rate of 22.90 on September 16th?when maize matured.Disease index of maize gray leaf spot was 0 before July 1st,and reached the maximum rate of 11.58 on September 2nd.Analysis according to the Logistic model,exponential phase in the Hegang region of disease index of northern maize leaf blight was period from the emergence period to July 22nd,Logistic period was period from July 22nd?to September 13th,and recession period was period after September 13th；exponential phase of maize?Curvularia?leaf spot in the Hegang region was period from the emergence period to July 10th,Logistic period was period from July 10th?to August 5th,and recession period was period after August5th.Exponential phase in the Hegang region of maize gray leaf spot was period from the emergence period to July 29th,Logistic period was period from July 29th?to August 12nd,and recession period was period after August 12nd.

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备注/Memo

收稿日期：2015-04-06

第一作者简介：王海舟（1979-），男，辽宁省朝阳市人，硕士，农艺师，从事农业生产管理研究。E-mail:whzh126email@126.com。

更新日期/Last Update: 2016-07-13