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(一) 我县小麦产量约占夏粮产量60—70％,但是由于老品种种植面积大,种子混杂退化,所以多年来亩产一直在百斤上下徘徊。我们曾多次自外地引种以图解决这个问题,但由于山区自然条件复杂和限制,外地小麦良种引进后,不几年良种便变成了劣种。如南大2419在我省是一个适应性较强的优良小麦品种,可是1953年引进我县种植以后,在寒露
(I) The output of wheat in our county accounts for about 60-70% of the summer grain output. However, due to the large planting area of the old varieties and the degenerated seeds, the yield has been fluctuating for many years. We have repeatedly introduced it from the outside world in an attempt to solve this problem. However, due to the complicated natural conditions in mountainous areas and the restrictions on the natural conditions in mountainous areas, the introduction of foreign wheat seeds has turned into a bad species in a few years’ time. Such as Nantou 2419 in our province is a strong adaptability of wheat varieties, but after the introduction of my county in 1953 after planting in the cold dew