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[目的]研究光温因子对冬小麦生长发育的影响。[方法]根据1981~2008年西峰农业气象试验站冬小麦试验观测资料及相应阶段的温度、日照资料,对冬小麦主要生育阶段的生长发育受光照、温度的影响程度及光温对冬小麦生长的综合作用光温积进行了分析。[结果]温度对冬小麦的全生育期的影响甚于光照。播种~出苗期间的发育速度主要受有效积温的影响;返青~拔节、拔节~开花及开花~成熟,发育速度受光温积影响较大。抽穗~成熟间的生物量与光照呈正相关;返青~拔节的平均气温与该阶段的生物量呈负相关,拔节~抽穗、抽穗~成熟间的平均气温与生物量呈正相关。[结论]光温积可以反映光照、温度对冬小麦生长发育的综合作用,用其来模拟冬小麦的生长发育期的准确率较高。
[Objective] The research aimed to study the effects of light and temperature on the growth and development of winter wheat. [Method] Based on the observation data of winter wheat in Xifeng agrometeorological experimental station and the corresponding temperature and sunshine data from 1981 to 2008, the effects of light and temperature on the growth and development of winter wheat and the effects of light and temperature on the growth of winter wheat Light and temperature products were analyzed. [Result] The temperature had more influence on the whole growth period of winter wheat than the light. The rate of development during sowing ~ emergence was mainly affected by effective accumulated temperature; rejuvenation ~ jointing, jointing ~ flowering and flowering ~ maturation, and the developmental speed was greatly influenced by light temperature and temperature. The biomass between heading stage and maturity was positively correlated with the light intensity. The average temperature between rejuvenation and jointing stage was negatively correlated with the biomass at this stage. The average temperature between jointing stage to heading stage and heading stage to maturity was positively correlated with biomass. [Conclusion] The light-temperature plot could reflect the integrated effect of light and temperature on the growth and development of winter wheat, and the accuracy of winter wheat growth and development was simulated by it.