摘要： 1988~1990年，将河南省的过渡型小麦品种在北京、郑州、贵阳三个试点播种。结果表明：依北、中、南的顺序，参试品种的全生育期天数逐渐减少，地点间差异极显著。全生育期天数与播种到生理拔节的天数有极显著正相关关系。播种~生理拔节~抽穗~成熟这三个生育阶段在北京、郑州表现“长~短~短”的特点，在贵阳则表现“短~长~短”的特点。从播种至抽穗，对日长无严格要求。播种~生理拔节、生理拔节~抽穗，都受温光互作的影响，其天数多少都和“平均光温积”呈极显著负相关。抽穗~成熟，在适温范围内，其天数与平均日均温呈极显著负相关。

关键词: 小麦, 过渡型品种, 生长发育, 温光反应

Abstract: The transition-type wheat varieties of Henan province were sown in Beijing, Zhengzhou and Guiyang during the two experimental years of 1988-1990. The results showed that the whole growing periods (days between sowing and maturity) shortened gradually in order of the locations from north to south. There existed very significant differences in the days of the growing period among different geographical locations,and the days were found to have a significantly positive correlation with those from sowing to physiological elongation. The physiological phases of sowing-elongation,elongation-heading and heading-maturity indicated a " long-short-short" feature in Beijing and Zhengzhou but a " short-long-short" feature in Guiyang. These transition-type wheat varieties had no strict requirement on daylength from sowing-heading. However, sowing-elongation and elongation-heading phases were both affected by temperature-light interactions. Negative correlations were very significant between the numbers of days and the "average light-temperature product". Under optimal range of temperature, the days between heading and maturity also showed a very significantly negative correlation with average daily temperature.

Key words: Transition-type wheat varieties, Growth and development, Temperature-light reaction