中国水稻科学

中国水稻科学

• 研究报告 • 上一篇    下一篇

浙江省早稻品种（系）的抗裂性分析

王跃星;杨军;倪深;陈红旗;朱旭东*   

  1. 中国水稻研究所 水稻生物学国家重点实验室， 浙江 杭州 310006； *通讯联系人， E-mail: ricezxd@126.com
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-07-10 发布日期:2008-07-10

Analysis on Anti-Fissuring Character among Early Rice Varieties in Zhejiang Province, China

WANG Yue-xing; YANG Jun; NI Shen; CHEN Hong-qi; ZHU Xu-dong*   

  • Received:1900-01-01 Revised:1900-01-01 Online:2008-07-10 Published:2008-07-10

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摘要： 针对稻谷的吸湿性裂纹特性，设计了标准处理方法，并对参加浙江省“9410”计划联合品比试验的品系、部分早籼及早粳育种亲本进行抗裂性分析和等级评定。裂纹粒率最高的材料达73%，最低的仅0.5%，材料间差异显著（P=4.23×10-16<0.01）；其中，45份籼稻材料平均裂纹粒率为34.19%，8份粳稻材料平均裂纹粒率为55.44%，2份长粳材料平均裂纹粒率为2.25%。相关分析表明，品种的抗裂性与粒形呈极显著正相关（r=0.49**）。

关键词: 早稻, 裂纹粒, 抗裂性, 稻米品质

Abstract: A standard treatment was designed for hygroscopic grain fissure, and the anti-fissuring character among early rice varieties in Zhejiang Province, China was analyzed and classified. There was significant difference in the percentage of fissure grain among varieties (P=4.23×10^(-16)<0.01). The highest percentage of fissure grain was 73%, and the lowest was 0.5%. The average percentages of fissure grain were 34.19% for 45 indica rice, 55.44% for 8 japonica rice, and 2.25% for 2 japonica rice with long grain. The correlation analysis showed that there was a significant correlation between anti-fissuring character and grain shape [r=0.46(superscript **)].

Key words: early rice, fissure grain, anti-fissuring character, rice quality