草毒提纯复壮一个优良草莓品种，经几年生产应用，往往表现长势减弱，株间大小不一，产量和品质降低，这种品种退化现象，在草莓生产区屡见不鲜。因此生产中要保持和提高品种的优良特性，必须在育苗中做好品种提纯复壮工作。１．选优①要从促成栽培地里选取品种符合原品种... Strawberry Strawberry is an excellent strawberry variety that has been refined and rejuvenated. After several years’ production and application, its performance tends to be weakened. The strains vary in size and yield and quality. The degradation of this species is not uncommon in strawberry production areas. Therefore, to maintain and improve the production of fine varieties, we must do a good breed purification and rejuvenation in nursery work. 1. Select the best ① from cultivated areas in the selection of varieties in line with the original breed ...