农业生产发展的历史,表明世界各地种植的小麦品种,大都是通过相互引种利用而发展丰富起来的。由于近代育种工作的进步,很多优良品种,不但在本国的生产上起了明显的增产作用,並且通过引种促使其他一些 The history of the development of agricultural production shows that most of the wheat cultivars planted throughout the world are mostly developed through mutual introduction and utilization. Due to the progress of modern breeding work, many fine varieties have not only played a significant role in increasing their production in the country, but also have promoted other ones through introduction