Humidity Test of Chinese Cabbage Black Rot Identification and Correlation Analysis of Its Seedling and Adult-plant Resistance
ZHAI Wen-hui1,2, ZHANG Tao-tao2, HU Jun1, ZHANG Feng-lan3, YAN Hong2*
1Agronomy College, Inner Mongolia Agricultural University, Hohhot 010018, Inner Mongolia,China; 2Institute of Plant & Environment Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing 10097,China; 3Vegetable Research Center, Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China
Abstract：Taking Chinese cabbage〔Brassica campestris L. ssp. pekinensis（Lour）olsson〕‘Beijingxin No.4’, ‘Beijingxin No.1’, ‘Beijingdaniuxin’, ‘Jingcui No.60’, ‘Jingcui No.70’, ‘Jingqiu No.65’as tested materials, humidity test and correlation analysis of Chinese cabbage seedling and adult-plant resistance to black rot were studied. The result indicated that there existed significant differences among different Chinese cabbages for black rot resistance and‘Beijingxin No.1’had the strongest resistance to black rot. Comparing disease indexes under different wet conditions, we found moisture was the key factor affecting black rot occurances. Using DPS software to conduct regression analysis and analyzing the correlation between artificial inoculation disease index of black rot in seedling stage and in adult plant stage, we found the results were that there existed notable linear correlation between artificial inoculation in seedling stage（before inoculation no moisture and after inoculation moisture for 24 h）and the disease index in adult-plant stage, and the method of artificial inoculation in seedling stage to identify resistance to black rot is reliable.
翟文慧，张涛涛，胡俊，张凤兰，严红. 大白菜黑腐病鉴定的湿度试验及其苗期与成株期抗病性的相关分析[J]. 中国蔬菜, 2010, 1(10): 59-63.
ZHAI Wen-hui;ZHANG Tao-tao;HU Jun;ZHANG Feng-lan;YAN Hong*. Humidity Test of Chinese Cabbage Black Rot Identification and Correlation Analysis of Its Seedling and Adult-plant Resistance. , 2010, 1(10): 59-63.
