Exceptional Prosperous Growing in Response to Warming in Fall and Winter before Winter

[Objective]Growing height,leaf area index and big tiller number of winter wheat in response to the warm winter were studied in order to provide an important basis for the safety of overwintering in Henan Province.[Method] Statistic analysis was made based on the parallel surface observation data of 2006 to 2007,and Excel 2000 software was used to draw diagrams.[Result] When the average temperature in November was not less than 6.5 ℃,the growing height of fall wheat increased obviously with ascending temperature,and the leaf area index showed a significant positive correlation with the accumulated temperature above 5 ℃.And it would increase 0.1 with every addition of 15 ℃ accumulated temperature.[Conclusion] The seeding period should be postponed for about four days in order to reduce the negative effect of warming climate.