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山西冬小麦一般是9月中旬至10月上旬播种,次年6月中下旬收获,春小麦是3月上中旬播种,7月上中旬收获。干旱、冻害、干热风对小麦生产影响得大,尤为突出的是小麦生育期水分不足,生育期间降水量只占全年降水量的20—30%,所以产量低而不稳。山西旱地小麦面积约1,000万亩左右,占小麦总面积的2/3,分布在山地和丘陵地区,总产量只占小麦产量的1/3。长期以来,大家都在思考这样一个问题:能不能选育创造一种新的小麦生态类型,以适应山西气候特点,充分利用天然降雨,使山地和丘陵区的小麦产量有个新的突破?这个问题,看来是可能的。首先从理论上来说,经过我们对国内外小
Shanxi winter wheat is generally sowing from mid-September to early October, harvest the second half of June the following year, spring wheat is planted in mid-March and harvested in mid-July. Drought, frost damage and hot and dry wind have a great impact on the wheat production. Especially, the shortage of wheat in the growth period of wheat is insufficient. The precipitation during the growth period accounts for only 20-30% of the annual precipitation, so the yield is low and unstable. Shanxi dry land area of about 10 million mu of wheat, accounting for 2/3 of the total area of wheat, located in mountainous and hilly areas, the total output of wheat accounted for only 1/3. For a long time, everyone is thinking about such a question: Can we breed and create a new type of wheat ecological adaptation to the climate characteristics of Shanxi and make full use of natural rainfall to make a new breakthrough in wheat production in mountainous and hilly areas? The problem seems to be possible. First of all theoretically, after we are small at home and abroad