摘要
对来自全国各地的8390份稻米样品按籼型常规稻、籼型杂交稻、粳型常规稻和粳型杂交稻进行分类,并对其品质性状做了相关分析和多重比较。简单相关分析的结果表明:(1)在碾磨品质上,糙米率、精米率、整精米率两两极显著正相关;(2)在外观品质上,籼粳稻的长宽比与糙米率、精米率、整精米率、垩白率、垩白度均呈显著负相关关系;(3)在食用品质上,籼稻的直链淀粉和碱消值显著正相关,和胶稠度显著负相关,粳稻直链淀粉与碱消值和胶稠度的关系不明显。多重比较明确了当整精米率、垩白度、直链淀粉含量分别达到显著差异时所对应的其余米质性状指标、质量指数和米质等级的差异情况。
Based on the classification of indica hybrid rice, indica con ventional rice, japonica hybrid rice, japonica conventional rice, the correlation analysis and multiple comparisons of grain quality characters were carried out using large samples. Results were as follows： （1） in milling quality, different rice types all had a significant positive correlation between brown rice rate, milled rice rate and head rice rate; （2） in appearance quality, the length/width ration of different rice types was significantly and negatively correlated to milled rice rate, head rice rate, chalkiness grain rate, chalkiness degree respectively; （3） in eating quality, the amylose con tent of indica rice was significantly and positively correlated to Alkali Spreading Value, negatively correlated to gel consistency, and there were no significant correlation between amylose content, Alkali Spreading Value, and gel consistency in japonica rice. In multiple comparison, all kinds of rice were divided into 3 groups （high, middle and low） according to the values of head rice rate, chalkiness and amylose content, which were significantly different respectively, and the rest corresponding rice quality properties of the 3 groups were compared.
出处
《作物学报》
CAS
CSCD
北大核心
2005年第8期1086-1091,共6页
Acta Agronomica Sinica
基金
国家"十五"科技攻关专题:水稻品质
效益协同提高关键技术研究与开发(2001BA507A-09-01-01)。
关键词
稻米品质
相关分析
多重比较
籼型
Rice quality
Correlation analysis
Multiple comparisons
作者简介
王丹英（1975-），女，浙江义乌人，助理研究员，主要从事水稻栽培生理和生态研究。
通讯作者：廖西元。E-mail：liaoxlquan@mail．hz．zj．cn
