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软腐细菌Erwinia carotovora pv. carotovora在白菜上的发展决定于品种的抗病性,软腐细菌的数量、植株年龄以及白菜叶片的分布部位,不同的组织,甚至同一张叶片的不同部位抗性均有所不同。凡是水分含量多的部位软腐扩展迅速,水分少的软腐发展慢,含水量在大白菜抗软腐细菌的扩展中具有明显作用。钙素的增加与白菜的抗软腐能力成正相关,增加钙含量可显著减轻软腐病的为害与发展,控制水分,增施钙素可提高大白菜软腐病的抵抗性。
The development of cabbage in Erwinia carotovora pv. Carotovora depends on the resistance of varieties, the number of soft-rot bacteria, the age of plants and the distribution of cabbage leaves, different tissues and even the resistance of different parts of the same leaf Different. Where the moisture content of soft rot parts of the rapid expansion of soft, slow development of water less slow, water content in Chinese cabbage resistant to the expansion of soft-rot bacteria have a significant role. The increase of calcium is positively correlated with the anti-soft rot ability of cabbage. Increasing the calcium content can significantly reduce the damage and development of soft rot disease. Controlling the water content and increasing the amount of calcium can increase the resistance of Chinese cabbage to soft rot disease.