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天津处于我国马铃薯种性严重退化的二季作地区.针对我市马铃薯病毒病,结合二季作地区留种技术,采用早熟优种红纹白、丰收白进行脱毒种薯生产.试验中将塑料大棚生产技术,地膜覆盖技术用于脱毒种薯生产,达到了早收、防蚜目的.并结合二季作地区秋播留种,完成了天津市三年六代的马铃薯脱毒种薯的繁育体系.各级种薯达到了国内暂行规定标准.
Tianjin is located in the seasons of serious degeneration of potato in our country .According to the potato virus disease in our city, combined with the technology of stay-seeding in the second seasons, we use the precocious red and white, Production techniques and plastic film mulching techniques for the production of virus-free seed tubers, reaching the goal of early harvesting and preventing aphids. Combined with the autumn sowing and planting in the seasons, the breeding system of virus-free potato seedlings of three generations and six generations in Tianjin Seed banks at all levels have reached the interim regulatory standards.