The results showed that accumulated temperature before wintering mainly affected single ridge stage and double ridges stage of spike differentiation.
结果表明,随着冬前积温的减少,不同幼穗分化时期累积GDD减小,冬前积温对小麦幼穗分化的影响主要表现在单棱期和二棱期,护颖分化期后幼穗分化受冬前积温的影响较小,冬性品种幼穗分化累积GDD对冬前积温最敏感,半冬性品种次之,春性品种则对冬前积温不敏感。
) were used for investigating effects of sowing dates and vernalization treatments on corresponding relation between leaf appearance and double ridges stage,and glume stage of spike differe.
为解析小麦叶片出生与小穗原基分化的同步关系,为营养器官生长和幼穗分化的协调发展、苗情诊断和培育壮苗提供理论依据,以16个小麦品种为试验材料,采用室内春化处理和田间分期播种的方法,研究春化处理和播期对不同春化发育特性小麦品种叶片出生与壮苗冬前安全穗发育期(二棱期)和护颖分化期对应关系的影响。
