摘要： 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

关键词: 小麦, 品种类型, 温光反应

Abstract: Through an analysis on days from sowing to physiological jointing and temperature-light factors of spring,facultative and winter wheat sowed in autumn and spring,it is found that,to spring varieties, relativehigher temperature in early growing stage may shorten the days from sowing to physiological jointing; facultative wheat varieties need more than 15 days low temperature below 8 ℃ during early stage, after which, relativehigher temperature may also shorten the days from sowing to physiological jointing; and winter varieties, during early developing stage, need relative lower temperature and more days of low temperature. The results suggest that facultative varietieshave broad prospects of utilization and use value inhenan Province; Spring varieties should not be sowed too early.

Key words: Wheat, Variety type, Temperature and light response

中图分类号: 

• S512.101