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近年来,我国普遍推广甘薯经高温处理后贮藏的方法。高温处理种薯主要起促使伤口愈合增强抗性的作用。但对处理的温度和时间说法不一:有的说38—40℃持续96小时;也有说35—38℃持续48～72小时。对病菌杀伤效果也说法不一致。为了弄清不同处理对甘薯黑斑病菌三种孢子的萌发、菌落生长以及薯块不同深度菌丝的影响,我们于1977年进行了试验。 材料和方法 一、高温处理后孢子萌发对比观察:从本地黑斑病薯上分离,得纯菌种一管,同时移植在16管P.D.A.培养基上作斜面培养,
In recent years, our country generally popularize sweet potato storage method after high temperature treatment. High-temperature treatment of seed mainly to promote wound healing and enhance the role of resistance. However, the treatment of temperature and time to say different: Some say 38-40 ℃ for 96 hours; also said that 35-38 ℃ for 48 to 72 hours. The effect of killing bacteria is also inconsistent. In order to understand the different treatments of Alternaria solani germination of three spores, colony growth and tubers at different depths mycelium, we conducted a test in 1977. Materials and methods First, the comparison of spore germination after high temperature treatment: isolated from the local black spot disease, pure tube of a tube, at the same time transplanted in 16 tubes P.D.A. medium for bevel culture,