Methods for rapid identification of Chinese cabbage resistance to brown rot
In order to establish a set of methods for rapid identification of Chinese cabbage resistant to brown rot,we compared the hyphae as inoculum with sclerotia,and analyzed the influence of seedling stage,temperature and air humidity on the occurrence of brown rot.The result showed that inoculation of fungus cake to soil surface was the best method,hyphae concentration was irrelevant to the virulence,the optimal inoculated seedling stage was 1-2 leaf,the optimal inoculated temperature was 25 ℃ and the optimal inoculated humidity was 90%-100%,disease index was surveyed at seven days after inoculation.