摘要： 我们对华北地区有代表性的30多个品种进行了冬性程度的界定,提出并建立了界定小麦冬性程度及基本发育的新方法,结果表明,华北地区的冬小麦在人工春化处理下,冬性最强的只需30d即可,品种类型达60%以上,如东方红3号、丰抗8号、京双15号、晋麦29等,个别品种不需春化也可抽穗;将这些品种在大田播种(石家庄,1998),只要不晚于2月17日都能正常抽穗。

关键词: 小麦, 冬性程度, 春化作用

Abstract: Thirty representative varieties in the Huabei are made to boundary of the winterness degree,we bring out and build a new methed of bounding the winterness degree and the essential development features.It takes only about 30 days for the strongest winterness winter wheat varieties Huabei area to get the vernalization,under the control condition,and more than 60% variety types get to vernalization,such as Dongfanghong 3,Fengkang 8,Jinmai 29 etc.Some varieties can head without the vernalization stage;these varieties were planted in the field (Shijiazhuang,1998),they could head normally only when it was not later than Feb.17.

Key words: Wheat, Winterness degree, Vernalization

中图分类号: 

• S512