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三年系统考察,明确了西藏麦作条锈区域流行特点是:气候凉爽湿润的东南部农区及其邻近的高山晚熟麦区为最适流行区;该区以西,以北麦泎条锈也常年发生,但对生产不是重要的限制因素。研究结果表明周年流行规律是:最适流行区早在2月底、3月初可见孢子,后形成中心,5至6月冬春麦作条锈流行达前高峰~高峰时期;其余农区随与最适流行区的距离加大,海拔升高,发生期与流行高峰期后延,甚至到10月上旬。高空气流携带远地菌源,自生麦苗,野生杂草可能参与周年流行过程。文章分析认为影响流行的主要因素是:雨季始期和雨日数。据西藏农家大麦抗性,条锈
Three years of systematic investigation made it clear that the epidemic characteristics of the wheat stripe rust in Tibet are as follows: the agricultural areas in southeastern China with cool and humid climate and its adjacent late-maturing wheat area are the most suitable epidemic areas; and the stripe rust of wheat in the west and north of the area is also perennial Occurs, but is not an important limiting factor for production. The results showed that the prevailing epidemic law was that the most suitable endemic area was spores at the end of February and early March, forming a center after which the stripe rust occurred in winter and spring from May to June reached the peak before and during the peak period. The prevalence of the area increased, the elevation increased, the peak period of occurrence and postponement, and even in early October. High-altitude airflow carrying far-soil germplasm, self-born wheat seedlings, wild weeds may participate in the annual epidemic. The article analyzes the main factors affecting the prevalence are: the beginning of the rainy season and the number of rainy days. According to Tibetan farmers barley resistance, stripe rust