南阳师范学院学报2012，Vol.11Issue(6)：34-36,102,4.
河南省南阳市2009～2010年小麦叶锈病发生的系统调查
Systematic survey on the occurrence of wheat leaf rust in Nanyang city, Henan province in 2009-2010
黄思良 1张胜利 1王新波 1陶爱丽 1王坦 1杨云飞1
作者信息
- 1. 南阳师范学院生命科学与技术学院,河南南阳473061
- 折叠
摘要
Abstract
Wheat leaf rust is an important disease in wheat production in Henan provinve,China.The occurrence of the disease was systematically investigated during 2009 to 2010 in Nanyang city,Henan province.The disease was initially observed on Apr 8,2009,with a leaf disease incidence of 0.56%,and slowly developed before Apr 22.Rapid disease development occurred from Apr 22 to 29,in which the leaf disease incidence sharply rosed from 4.11% to 34.11%,and disease index from 0.51 to 6.67 only within 7 days.On May 6,the leaf disease incidence and disease index reached to 78.78% and 29.95,respectively,and their incremental rates subsequently stepped down.The increasing patterns of both leaf disease incidence and disease index exhibited the characteristics of an S-type curve.As compared to 2009,the occurrence of the disease was delayed for approximately one month in 2010,with markedly reduced leaf disease incidence and disease index during the growing seasons.Based on a comparison of climatic factors,the daily average temperatures for a month during Feb to Apr in 2009 were found to be much higher than normal years,which was speculated to be the main reason for the severe occurrence of wheat leaf rust in 2009 in Nanyang.关键词
小麦叶锈病/南阳/系统调查/气象因子Key words
wheat leaf rust/Nanyang/systematic survey/climatic factor分类
农业科技引用本文复制引用
黄思良,张胜利,王新波,陶爱丽,王坦,杨云飞..河南省南阳市2009～2010年小麦叶锈病发生的系统调查[J].南阳师范学院学报,2012,11(6):34-36,102,4.
