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白发病是我国谷子生产上的一个主要病害。我省历年均有程度不同的发生危害。以往,采取一般措施来进行防治,常得不到明显的效果。为了进行有效的防治提供科学依据,1961至1964年,在我省历来发病较重的谷子主产地陕北,进行了试验和调查研究。结果证明,白发病菌存在着分生孢子的系统再侵染和明显的局部再侵染,加重了病害的发生,危害程度,改变了病害的发生发展规律,给病害的防治和研究带来了新的问题。
White hair is one of the major diseases in millet production in our country. Different degrees of harm have occurred in our province over the years. In the past, taking general measures for prevention and control often can not achieve obvious results. In order to provide a scientific basis for effective prevention and control, from 1961 to 1964, experiments and investigations were conducted in northern Shaanxi, a major producing area of millet that has been heavily endemic to our province. The results showed that there was conidiospore re-infection and obvious local re-infection of white spore germs, aggravating the occurrence and harm degree of the disease, changing the occurrence and development of the disease and bringing the prevention and control of the disease New question