| 摘要: |
| 1986～1994年,以天水为基点对陇南小麦条锈病的流行规律开展了进一步研究,明确了: 1)病菌越夏有直接和间接两种方式。海拔1 700m以上的高山区为病菌的主要越夏基地,夏季降雨和温度是影响病菌越夏的最重要因素。2)当地越夏菌源为秋苗发病的主要菌源来源,菌源量、播期和降雨为影响秋苗发病的主要因素。3)首次证明,陇南秋季菌源量大时,可直接传入关中并引致较大流行。4)半山区为病菌的主要越冬基地。5)春季病菌先在半山发展,后向全区和西部麦区传播。并根据上述流行规律提出了控制策略建议。 |
| 关键词: 小麦条锈病，流行规律，控制策略，陇南 |
| DOI： |
| 分类号:S435.121.4 |
| 基金项目:国家“七五”、“八五”攻关项目 |
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| Study on the Epidemiology and Control Strategy of Wheat Stripe Rust in South Gansu |
|
Li Zhenqi Wan Meinan Jia Minggui Lu Heping Shan Hongsheng Kang Zhensheng,Li Zhenqi Wan Meinan Jia Minggui Lu Heping Shan Hongsheng Kang Zhensheng,Li Zhenqi Wan Meinan Jia Minggui Lu Heping Shan Hongsheng Kang Zhensheng
|
| Abstract: |
| During 1986～1995, the epidemiology of wheat stripe rust in South Gansu was conducted in Tianshui area, and the following results were verified: 1)there are
direct and indirect methods of oversummering in pathogen.The high mountain area over
1700m above sea level is the main area for over summer in pathogen.The rain fall and
temperature, especially the rain fall in summer, are the most important factors influencing on the disease in autumn. 3) Its firstly proved that the pathogen in South Gansu in
autumn can transmit to Guanzhong Plain and induce epidemic when there is much inoculum. 4) The half mountain area is the main area for overwintering in pathogen. 5) In
spring, the pathogen first develops and multiples in the half mountain area, and then it
transmits to the whole region and west wheat growing region.According to the results
mentioned above, a strategy for controlling the wheat stripe rust in South Gansu was
recommended. |
| Key words: wheat stripe rust,epidemiology control strategy,South Gansu |
