作物品种资源,国外也称种质资源、遗传资源,是经过长期自然演化和人工创造而形成的一种为人类提供衣食和原料的重要自然资源,是进行作物品种改良的物质基础。它包括古老的地方品种、育成种以及各作物的突变种、稀有种和近缘野生种等种质。随着人类社会不断发展,自然环境条件不断改变,自然生态发生了很大变化,作物品种资源也随之在发生着变化。为了对其进行研究和利用,避免出现各种不应有的损失,国际上许多国家都将所收集到的各作物种质资源收藏在规模大小不一、贮期长短不等的种质或基因库中,各库所收集保存的材料十分丰富。下面仅就世界小麦种质资源库的收藏数量、贮存期限、所在地址简要介绍,供广大遗 Crop variety resources, also known as foreign germplasm resources and genetic resources abroad, are important natural resources for providing food, clothing and raw materials for humankind after long-term natural evolution and artificial creation, and are the material basis for the improvement of crop varieties. It includes ancient landraces, breeding varieties, and mutant varieties of various crops, rare species and related wild species. With the continuous development of human society, the conditions of natural environment are constantly changing, great changes have taken place in the natural ecology, and the varieties of crop varieties also change accordingly. In order to study and utilize them, and avoid all kinds of undue losses, many countries in the world collect the collected germplasm resources of crops in germplasm or genes with different sizes and different storage periods In the library, the materials collected and stored in various libraries are very rich. The following only on the World Wheat Germplasm Collection of the number, shelf life, the address briefly introduced for the vast legacy