对春型、过渡型、冬型小麦品种 ,在秋春播条件下从播种到生理拔节的天数及其温光因子的分析 ,结果表明 :在春型品种生育前期 ,相对较高的温度可以缩短播种到生理拔节的天数 ;过渡型品种生育前期需要 15d以上 8℃以下的低温条件 ,在具备了所要求的低温条件后 ,相对较高的温度也可缩短播种到生理拔节的天数 ;冬型品种生育前期需要相对较低的温度条件和较多的低温天数。据此提出了过渡型品种在河南有广泛的应用前景和利用价值 ;春型品种应注意播期不宜过早 The results showed that the relatively high temperature of spring type, transitional type, winter wheat cultivars, the number of days from sowing to physiological jointing under spring and autumn sowing conditions and their temperature and light factors, Physiological jointing days; transitional varieties need 15d above the early stage of 8 ℃ below the low temperature conditions, with the required low temperature conditions, the relatively high temperature can also shorten the sowing to the number of physiological joints; Relatively low temperature conditions and more low temperature days. Therefore, it is suggested that the transitional cultivars have a wide range of application prospects and utilization values ​​in Henan. Spring type cultivars should be noted that sowing date should not be too early