论文部分内容阅读
从合肥、蚌埠、长丰、和县等地采集的番茄、辣椒、草莓、葡萄等发病组织上分离鉴定获得23个灰葡萄孢菌株,采用菌丝块创伤接种法,分别测定了这些菌株对草莓果实和叶片的致病力。结果初步表明,所有供试菌株接种草莓果实和叶片后均引起发病,但病斑的平均直径有显著差异,并在不同草莓品种上表现也有差异,显示灰葡萄孢菌株间对草莓果实和叶片的致病力存在明显的分化。按照在草莓果实和叶片所致病斑的平均直径大小可将供试菌株划分为致病力较强、中等和较弱3种类型。总体来说,来自草莓和番茄的菌株对草莓果实和叶片的致病力较强,来自辣椒的菌株对草莓果实和叶片的致病力较弱,但来自相同寄主的菌株间致病力也存在差异,菌株致病力差异与菌株地域来源无明显相关。
Twenty three strains of Botrytis cinerea were isolated and identified from the tissues of pathogens such as tomato, pepper, strawberry and grape collected from Hefei, Bengbu, Changfeng, He County and so on. The mycelial trauma inoculation method was used to determine the effect of these strains on strawberry fruit And the pathogenicity of leaves. The results showed that all the tested strains inoculated strawberry fruit and leaves were caused after the disease, but the average diameter of the lesion was significantly different, and in different strawberry varieties are also different performance, showing that between strains of Botrytis cinerea on strawberry fruit and leaf Pathogenicity there is a clear differentiation. The test strains can be divided into three types which are more virulent, moderate and weaker according to the average diameter of the lesions caused by strawberry fruits and leaves. In general, the strains from strawberry and tomato had strong virulence on strawberry fruits and leaves, while the pepper-derived strains had weaker virulence on strawberry fruits and leaves, but also the pathogenicity among strains from the same host The differences in pathogenicity of the strains were not significantly related to the geographical origin of the strains.