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张家口坝上地区位于河北省北部,属于内蒙古高原冷凉气候带。由于纬度高,地势高,主要气候特点是:气温低,降雨少,无霜期短,日照长。年平均气温1—3℃,大于或等于0℃积温为2,300—2,800℃,年降雨量35C—400毫米,年日照2,900—3,000小时,无霜期80—110天之间。莜麦是长日照作物。耐寒耐瘠,适应性较强。坝上地区种植莜麦历史悠久,是莜麦主产区之一。针对坝上的生态条件确定正确的育种目标,刘育
Zhangjiakou dam area is located in the northern part of Hebei Province, Inner Mongolia Plateau is a cool climate zone. Due to the high latitude and high terrain, the main climate features are: low temperature, few rainfall, short frost-free period and long sunshine duration. The annual average temperature of 1-3 ℃, greater than or equal to 0 ℃ accumulated temperature of 2,300-2,800 ℃, the annual rainfall of 35C-400 mm, annual sunshine 2,900-3,000 hours, frost-free period of 80-110 days. Oats are long-day crops. Cold and barren, strong adaptability. Barley planting 莜 wheat has a long history, is one of the main producing areas 莜 wheat. According to the dam ecological conditions to determine the correct breeding objectives, Liu Yu