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1 绪言第三世界国家的马铃薯种薯生产计划,可以根据对品种的需要而划分成性质不同的两类:一类是利用欧洲的或北美的品种,一类是利用当地的品种。利用当地原有品种或andifena改良型的南美安第斯山区的国家,仅仅因为他们不能进口种薯才发展了种薯生产计划。有着重要育种计划的印度,在本世纪的50年代就选育了它自己的品种。其他的许多国家种植的“当地品种”已有若干时间了,或者是19世纪的引进品种,或者是从当地育种计划获得的品种。
1 INTRODUCTION The plan of potato seed production in the Third World countries can be divided into two categories according to the needs of the varieties: one is the use of European or North American varieties, and the other is the utilization of local varieties. Countries that make use of the native original or andifena-improved South American Andes developed seed potato production programs simply because they could not import seed. India, which has an important breeding program, bred its own breed in the 1950s. It has been a long time since many “native varieties” grown in many other countries are imported varieties from the 19th century or from local breeding programs.