关键词: 美洲斑潜蝇, 美洲斑潜蝇, 高温, 致死效应

Abstract: The different ramie wild species germplasm resources were appraised Preliminarily.The result shows that：①The yield，fiber cell diameter and cell wall thickness of materials are lower which indicated they are not too worthiness on increasing yield，but the ratio wall and cavity of them are higher than the CK except B.densiglomerataand which indicated they have certain using worthiness in improving fiber quality，and it can offered excellent gene especially in fiber denaturalization.②The diversity of cellulose content is no markedness between them and the CK，but the tall guley factor lead the difficulty in peeling original hemp，so they are not compatible in direct useability.③The variation coefficient of fiber fineness，breaking strength（tenacity）and breaking work are higher in fiber physical properties which indicated they have a big potential in improving agronomic characters.④In cluster analysis，the materials are divided into three groups which the groupⅠare used compatibly as high quality resources in breeding，the groupⅡare used compatibly as over fiber fineness resources in breeding，the group Ⅲ are used compatibly as low textile resources in breeding.