华北农学报 ›› 2004, Vol. 19 ›› Issue (2): 44-48. doi: 10.3321/j.issn:1000-7091.2004.02.012

所属专题: 小麦

• 论文 • 上一篇    下一篇

不同穗型冬小麦品种子粒灌浆与同化物供应关系的研究

郭天财1, 冯伟1, 夏百根2, 方保停1, 王书丽1   

  1. 1. 河南农业大学国家小麦工程技术研究中心, 河南郑州 450002;
    2. 河南农业大学基础科学学院, 河南郑州 450002
  • 收稿日期:2003-07-12 出版日期:2004-06-28
  • 作者简介:郭天财(1953-),男,河南济源人,教授,博士生导师,主要从事小麦栽培生理研究工作.
  • 基金资助:
    国家重点基础研究发展规划"973项目"(G2000077900)资助项目;国家农业科技成果转化项目"小麦优质高效种植技术集成与示范"

Relationship Between Grain Filling and Assimilation Supply in Two Winter Wheat Cultivars with Different Spike Type

GUO Tian-cai1, FENG Wei1, XIA Bai-gen2, FANG Bao-ting1, WANG Shu-li1   

  1. 1. National Engineering Research Center for Wheat, Henan Agricultural University, Zhengzhou 450002,China;
    2. Basic Science College,Henan Agricultural University,Zhengzhou 450002,China
  • Received:2003-07-12 Published:2004-06-28

摘要: 大穗型品种豫麦66号与多穗型品种豫麦49号相比,在灌浆中后期旗叶光合速率具有明显优势,在花后0~30 d子粒WSC含量较高,显示出子粒灌浆较强的同化物供应能力.豫麦66号旗叶WSC在灌浆中后期含量较低,淀粉含量在整个灌浆期均较低,表明大穗型品种同化物外运能力可能较强,流系统生理活性比较活跃.两品种淀粉积累速率的变化均呈单峰曲线,豫麦66号的峰值出现较晚但持续时间较长,最大积累速率高,子粒灌浆速率亦呈现同样的趋势,两者呈显著正相关.说明豫麦66号在子粒灌浆后期仍可保持较强的库活性和具有较大库容特性.

关键词: 冬小麦, 穗型, 子粒灌浆, 同化物

Abstract: Two winter wheat cultivars with large-spike type cultivar Yumai 66 and multiple-spike cultivar Yumai 49,were used to study their C metabolic characteristics and grain filling. Photosynthetic rate in flag leaf of Yumai 66 was superior to Yumai 49 during later filling stage,and WSC content in grain of Yumai 66 was higher than that of yumai 49 during 0-30 d after anthesis, which showed that source had strong supplying ability of assimilating matter. WSC content in flag leaf of Yumai 66 was lower than that of yumai 49 during later filling stage,and starch content was also lower than that of yumai 49 during the whole filling stage,it revealed that large-spike type cultivar maintained stronger flow activity and rapid translocation of assimilating matter. Changes of starch accumulating rate in grain appeared to be a single-peak curve,but the peak of Yumai 66 came a little later than that of Yumai 49,but it sustained a long time, the peak of yumai 66 was higher than that of Yumai 49. Grain filling rate had the same trend during the later stage, it presented significant positive correlation between grain filling rate and starch accumulating rate. It showed that Yumai 66 maintained stronger sink activity during the later stage and had much sink volume.

Key words: Winter wheat, Different spike-type varieties, Grain filling, Assimilating matter

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引用本文

郭天财, 冯伟, 夏百根, 方保停, 王书丽. 不同穗型冬小麦品种子粒灌浆与同化物供应关系的研究[J]. 华北农学报, 2004, 19(2): 44-48. doi: 10.3321/j.issn:1000-7091.2004.02.012.

GUO Tian-cai, FENG Wei, XIA Bai-gen, FANG Bao-ting, WANG Shu-li. Relationship Between Grain Filling and Assimilation Supply in Two Winter Wheat Cultivars with Different Spike Type[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2004, 19(2): 44-48. doi: 10.3321/j.issn:1000-7091.2004.02.012.

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