作　　者： ; ; ; ; ; ; (律宝春）;

机构地区： 中国农业大学农学与生物技术学院

出　　处： 《中国植保导刊》 2006年第11期5-7,共3页

摘　　要： 分别采用滤纸法和浸胚根法测定了西瓜枯萎病菌对西瓜种子发芽和幼苗生长发育的影响。结果表明,枯萎病菌孢子悬浮液浓度为106～107个/ml时,种子的发芽势和发芽率均显著低于对照,并且对京欣1号品种和航兴1号品种种子发芽的影响大于黄小帅;枯萎病菌孢子悬浮液处理种子后,幼苗的茎长、子叶长度、子叶宽度、第3叶长度、第3叶宽度、百株鲜重等指标均有所降低,当浓度为106～107个/ml时,除百株鲜重和航兴1号品种幼苗的第3叶长度外,与对照相比,其他指标均显著降低。 Effects of Fusarium oxysporum f. sp. niveum on the seed germination and seedling developments of watermelon were tested by blotter and radicle dipping method. The results showed that seed vigor and germination of watermelon were significantly lower than the control at the concentration of 10^6-10^7 spores/ml, and the effect on the seed germination of cv. Jingxingyihao and Hangxinyihao was more significant than on that of cv. Huangxiaoshuai. The indexes of length of stem, Length and width of cotyledon, length and width of the third leaf, fresh weight of one-hundred plants of watermelon seedlings all decreased by seeds treatment of spore suspension of Fusarium oxysporum f. sp.niveum. Compared with the control, other indexes were remarkably lower at the concentration of 10^6-10^7 spores/ml except those of fresh weight of one-hundred plants and the length of the third leaf of cv. Hangxinyihao.

关 键 词： 西瓜 枯萎病菌 种子发芽 幼苗 生长发育

领　　域： [农业科学] [农业科学]