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中国农学通报 ›› 2009, Vol. 25 ›› Issue (11): 50-55.

所属专题: 水稻

• 农学 农业基础科学 • 上一篇    下一篇

杂交水稻种子特征特性与播种品质关系的研究概述

付爱斌,蔡冬元,刘 烨,张景瑞,陈 詹   

  • 收稿日期:2009-03-03 修回日期:2009-03-31 出版日期:2009-06-05 发布日期:2009-06-05

Study on the Relationship between the Characteristics of the Hybrid Rice Seed and the Sowing Quality

Fu Aibin, Cai Dongyuan, Liu Ye, Zhang Jingrui, Chen Zhan   

  • Received:2009-03-03 Revised:2009-03-31 Online:2009-06-05 Published:2009-06-05

摘要: 杂交水稻种子播种品质较常规种子低,表现在发芽率、成苗率较低,浸种催芽、播种育秧生产环节中技术难度较常规稻种子大。种子裂颖率、穗萌芽率、种子带菌率较高等是影响播种品质的主要因素。本文综述了杂交水稻种子裂颖的原因、裂颖种子的测定和分级方法、贮藏特性与种用价值;杂交水稻制种穗萌发芽的表现和影响因素。提出了控制裂颖和穗萌动发芽的技术措施。

关键词: 退耕还林还草, 退耕还林还草, 后续产业, 西北地区

Abstract: The sowing quality of hybrid rice seed is poorer than that of the routine seed ; concretely, its germination is more difficult, and so it is with the Technique degree in soaking seeds to hasten germination , sowing seeds to raise seedling .The main facts to affect sowing quality lies in the rates of cracking from grain husk and germinating, and the carrier rate. This paper claims the reasons of hybrid rice seed cracking from grain husk, the setting-out and grading selection of this kind of seed; then points out the characteristics of storage and the value for practical use and analyses the emergence of the procedure in seed production by the hybrid rice seed as well as the effect factors; finally puts forward to the measures to take the control of cracking from grain husk and germinating.