水稻种质谷壳裂颖率差异研究初报

• 作 者: 朱伟 吴跃进 童继平 吴敬德 郑乐娅 张瑛 张治国
• 机 构: 安徽省农业科学院水稻研究所,农业部水稻遗传育种重点开放实验室,安徽省农业科学院水稻研究所,农业部水稻遗传育种重点开放实验室,安徽省农业科学院水稻研究所,农业部水稻遗传育种重点开放实验室,安徽省农业科学
• 出 处: 安徽农业科学
• 发表日期: 2002年02期
• 关键词: 种质库 裂颖率 差异研究 仓储害虫 早籼 颖壳 仓库害虫 玉米象 内颖 储藏期

根据水稻种质谷壳裂颖率的差异 ,对种质库中 10 17份籼粳品种进行调查 ,旨在了解水稻品种裂颖率的分布。调查结果表明 :裂颖率 >16%的群体中 ,籼粳稻所占比例较小 ,分别为 15 .4%、10 .7% ;裂颖率在 7%～ 16%的群体中 ,籼、粳稻所占比例分别为 14 .2 %、3 6.7% ,粳稻所占比例较大 ;裂颖率 3 %～ 7%的群体中 ,籼、粳稻所占比例分别为 3 3 .1%、16.0 % ,籼稻所占比例较大 ;裂颖率在 1%～ 3 %的较低群体中 ,籼、粳稻所占比例分别为 2 3 .7%、2 4.5 % ;裂颖率 <1%群体中 ,籼、粳稻所占比例分别为 13 .7%、12 .2 % ,所占比例较小。在同一亚种内 ,籼稻裂颖率最高 81.9% ,最低为 0 .1% ;粳稻裂颖率最高 98.1% ,最低为0 .13 % ;裂颖率差异显著

According to the differences of rice cracking rate among rice germplasms, 1017 indica and japonica varieties in germplasm bank were investigated to understand the distribution of cracking rate in rice varieties. The results showed that the indica and japonica rice populations accounted for 15.4% and 10.7% of the population with crack rate> 16%, respectively. Among the populations with 7% and 16% Accounting for 14.2% and 3 6.7%, respectively, with a larger proportion of japonica rice. Among the populations with 3% -7% cracking rate, the proportions of indica and japonica rice were 33.1% and 16.0% respectively, Indica rice accounted for a larger proportion; the rate of indica and japonica rice was 23.7% and 24.5% in the lower population with 1% -3% , The proportion of japonica rice was 13.7%, 12.2%, accounting for a small proportion. In the same subspecies, indica split Ying highest rate of 81.9%, the lowest was 0.1%; japonica cracking rate was the highest 98.1%, the lowest was 0.13%; crack Ying rate significantly different