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热带环境条件下咖啡产区,温度对叶锈病流行学及其夏孢子活力的影响,一直引起咖啡专家的注意。现已获得的认识,由于温度的作用对流行曲线的影响比较明确,而且提供了病害防治的确切参数。初步研究表明,锈病孢子发芽和附着孢形成最适的温度是21℃,发芽的限制温度是28.5℃。由于温度的作用,在巴西圣保罗州的环境条件下,在比较热的月份咖啡锈菌潜伏期是比较短的,而在较冷的月份比较长。但是,超过了一定的温度范围、这种影响则相反。于是,温度超过31℃,就像冬季低温期情况一样,延长其潜伏期。孢子的寿命也受到温度的影响,孢子保存在30℃下,其活力按生理小种可维持14～19天,温度45～
The effect of temperature and temperature on the epidemiology of leaf rust and its activity of uredospores under the condition of tropical environment has drawn the attention of coffee experts. The understanding now gained is that the effect of temperature on the epidemic curve is clear and provides the exact parameters for disease control. Preliminary studies have shown that spore germination and attachment spore rust optimum temperature is 21 ℃, germination temperature limit is 28.5 ℃. Due to temperature effects, the incubation period of the coffee rust was relatively short in the warmer months and longer in colder months under the environmental conditions of the state of São Paulo, Brazil. However, over a certain temperature range, this effect is the opposite. As a result, temperatures in excess of 31 ° C prolong the incubation period, as is the case in winter. Spore life is also affected by temperature, spores stored at 30 ℃, the vitality by physical races can be maintained for 14 to 19 days, the temperature is 45 ~