为了加速春小麦新品种的选育进程,近二年来我们选定云南省元谋县进行了南繁工作。由于南北两地小麦生育期间的气侯、土壤、栽培管理等差异较大,对小麦生长发育及一些性状表现均有较大的影响。为此利用这些南北间的不同自然因素指导工作,对加速选育小麦新品种具有事半功倍的效果。我区呼和浩特地区和云南省元谋县地处祖国北南两端,纬度和海拔相差悬殊,气候 In order to accelerate the breeding process of new varieties of spring wheat, we selected the work of Nan Fan in Yuanmou County in Yunnan Province in recent two years. Due to the large differences in the climate, soil, cultivation and management during the growth of wheat in both North and South, it has a great impact on the growth and development of wheat and the performance of some traits. Therefore, taking advantage of these different natural factors guiding work between North and South, it will have a multiplier effect on accelerating the breeding of new wheat varieties. The Hohhot area in our district and Yuanmou County in Yunnan Province are located at the north and south ends of the motherland. There is a great difference between latitude and altitude. The climate