| 刘尚前,王晓春,牛瑞明,赵连平.不同生态型小麦春播条件下幼穗分化进程与温度和叶片出生的关系[J].干旱地区农业研究,2005,(2):104~108 |
| 不同生态型小麦春播条件下幼穗分化进程与温度和叶片出生的关系 |
| Relation between young spike differentiation of ecotypes of wheat at different sowing date in spring and temperature and leaf emergence |
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| DOI：10.7606/j.issn.1000-7601.2005.02.22 |
| 中文关键词: 小麦 春播 幼穗分化 温度 叶龄 |
| 英文关键词:ecotypes wheat sowing date young spike differentiation temperature leaf emergence |
| 基金项目:该项研究为“九五”国家旱农攻关项目(1996-004-04-03)子课题 |
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| 中文摘要: |
| 研究了不同生态型小麦在春季分期播种条件下的幼穗分化进程与温度和叶片出生的关系。结果表明,随播期后移,春型小麦幼穗分化历时缩短,所需积温相对稳定。冬型小麦则历时延长,但是所需积温增加;小麦品种冬性越强,幼穗分化历时越长,所需积温越多。小麦叶龄与幼穗分化的对应关系因生态型而异,冬性小麦幼穗分化各个时期对应的叶龄均高于春性小麦;不同生态型小麦幼穗分化同一时期内经历的叶片数目不尽相同。 |
| 英文摘要: |
| This paper deals with the relation between young spike differentiation of ecotypes of wheat at different sowing date in spring and temperature and leaf emergence. The result show that the later the sowing date of wheat is, the shorter the young spike differentiation of ecotypes of wheat lasts, the longer the process of the winter wheat lasts, the higher the accumulated temperatures are for the winter wheat, the accumulated temperatures are relatively stable for the spring wheat. The days and accumulated temperatures are higher for winter wheat than spring wheat; the leaf emergence on main stem at all spike differentiation stages vary with ecotype, the leaf numbers are more for winter wheat than those of spring wheat. |
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