玉竹锐顶镰孢菌的生物学特性及药剂防治

为了研究和掌握病害的发生规律及更好的防治病害，本实验从温度、pH值、光照、碳源、氮源对玉竹锐顶镰孢菌(Fusarium acuminatum)菌落生长的影响以及不同种类杀菌剂对病菌的抑菌效果进行了研究。结果表明锐顶镰孢菌菌丝生长最适温度为28℃，最适pH值为7.0，光暗交替有利于菌丝生长，以可溶性淀粉为碳源、以甘氨酸为氮源时利用最优。药剂筛选结果表明有机硫类杀菌剂对玉竹锐顶镰孢菌的抑制效果最优。

Biological characterization and chemical on the control of Fusarium acuminatum pathogen of Polygonatum odoratum

In order to study and master the law of the occurrence of Polygonatum odoratum Brown Patch and prevention and treatment of diseases better, In this study, temperature, pH, light, carbon and nitrogen source on colony growth, as well as different types of fungicides on Fusarium acuminatum of Polygonatum odoratum to study antibacterial activity. The results showed that the optimum temperature was 28℃, and the optimum pH for hyphae growth was 7.0. The treatment of whole illumination could restrain the growth of mycelium, the alternation of darkness and light could promote mycelium growth. The growth of colony was the best with soluble starch as the carbon source, and glycine as the nitrogen source. Amobam and Pyraclostrobin on Fusarium acuminatum pathogen of the inhibitory effect was the best. Through the top of Fusarium acuminatum biological characteristics of understanding, organic sulfur and azole fungicides could reach a certain preventive effect.