论文部分内容阅读
花生锈病(Puccinia arachidis Speg)是花生的主要病害之一。1970年以来,我省花生锈病有所扩展,据不完全统计,1972年全省发病面积占种植面积的60％。1973年,湛江地区花生发病面积占种植面积的85.6％,损失达20-30％;汕头地区发病面积也占种植面积的51％,损失也在10-30％。花生锈病已成为我省提高花生单产的主要障碍之一。探索花生锈病的发生规律及病原菌的生物学特性,对防治花生锈病具有重要意义。下面是我们在这方面
Puccinia arachidis Speg is one of the major peanut diseases. Since 1970, peanut rust has been expanded in our province. According to incomplete statistics, the disease incidence in the province accounted for 60% of the acreage in 1972. In 1973, the area of diseased peanut in Zhanjiang accounted for 85.6% of the area planted, with a loss of 20-30%. The morbidity area of Shantou accounted for 51% of the planted area and the loss was also 10-30%. Peanut rust has become one of the main obstacles to improve peanut yield in our province. Exploring the law of occurrence of peanut rust and the biological characteristics of pathogenic bacteria is of great significance for the prevention and treatment of peanut rust. Here’s what we do in this area