摘要： 为了解深翻与小麦灌浆的关系，以冀麦585为材料，采用大田试验研究了不同的深翻深度对冬小麦灌浆期旗叶衰老和灌浆特性及产量的影响。结果表明，深翻70 cm处理可以提高冬小麦灌浆后期旗叶SPAD值，提高叶绿素含量，延缓旗叶衰老；深翻50 cm和深翻70 cm提高灌浆期冬小麦的土壤含水量，旗叶的光合特性，延长叶片功能期；深翻处理提高灌浆后期小麦的籽粒干质量、最大灌浆速率、灌浆速率最大时的生长量和理论最大粒重，延后最大灌浆速率出现的时间；深翻30 cm和深翻50 cm处理通过提高千粒质量和收获指数来提高冬小麦的产量，其中深翻50 cm的保水效果好于深翻30 cm。因此，农业生产中合理深翻是提高冬小麦灌浆后期灌浆速率，延缓叶片衰老，从而提高产量的有效措施。

关键词: 小麦, 衰老, 深翻, 灌浆特性, 产量

Abstract: In order to explore the effects of deep plowing on grain filling of winter wheat,four treatments including rotary tillage(CK) and three tillage depths(30,50,70 cm) were used in field experiment.Our results showed that deep plowing increased the SPAD of flag leaf and delayed the senescence of wheat;soil water content,photosynthetic physiological and grain weight were also improved.Further studies revealed that deep plowing up regulated R_max and R_mean,,W_max appeared later.The results suggested that deep plowing increased the yield of winter by increasing grain weight and harvest index.The results suggested that P30 and P50 treatments increased the yield of winter by increasing grain weight and harvest index.The soil water content of P50 was higher than P30.The most effective way to increase the yield of winter in agricultural production is deep plowing.

Key words: Wheat, Senescence, Deep plowing, Grain filling characteristic, Yield

中图分类号: 

• S512.01