稻谷粒形与稻米主要品质性状的关系-沈阳农业大学教务处.PDF

第 30 卷 第 9 期 作 　物 　学 　报 Vol. 30 , No . 9 2004 年 9 月 　894～900 页 ACTA A GRONOMICA SINICA pp. 894 - 900 　Sept . , 2004 稻谷粒形与稻米主要品质性状的关系 徐正进 　陈温福 　马殿荣 　吕英娜 　周淑清 　刘丽霞 (农业部作物生理生态遗传育种重点开放实验室 ,辽宁省北方粳稻育种重点实验室 , 沈阳农业大学水稻研究所 , 辽宁沈阳 110161) 摘 　要 　以包括籼粳 、新老不同的类型 92 个水稻品种为试材 ,研究了稻谷粒形性状与品质性状的关系 。结果表明 ,谷粒 长与谷粒宽和谷粒厚呈极显著负相关 ,千粒重与谷粒长 、谷粒宽和谷粒厚均呈显著或极显著正相关 ,千粒重主要由谷粒 宽和谷粒厚决定 。糙米率 、精米率和整精米率与谷粒长 、谷粒长宽比和谷粒长厚比呈极显著负相关 ,与谷粒宽、谷粒厚和 谷粒宽厚比呈极显著正相关 ,与稻米相应指标的关系表现相同趋势 ,减小谷粒长而增大谷粒宽和谷粒厚有利于改善碾磨 品质 。垩白粒率与千粒重 、谷粒宽、谷粒厚和谷粒宽厚比呈极显著正相关 ,谷粒长与垩白大小和垩白度呈极显著正相关 , 外观品质与稻米粒形的关系也表现相同趋势 ,稻谷粒形不是决定稻米外观品质的主要因素 。直链淀粉和蛋白质含量与 谷粒长 、长宽比和长厚比呈极显著正相关 ,与谷粒宽、谷粒厚和宽厚比呈极显著负相关 。此外 ,还讨论了稻谷粒形与品质 关系及其遗传改良研究中的几个有关问题 。 关键词 　水稻 ;稻谷粒形 ;稻米粒形 ; 品质性状 中图分类号 : S511 Correlations bet ween Rice Grain Shapes and Main Qualitative Characteristics XU ZhengJin ,CHEN WenFu ,MA DianRong ,LU YingNa ,ZHOU ShuQing ,LIU LiXia ( Key L aboratory of Crop Physiology , Ecology , Genetics and B reeding , Ministry of Agriculture ; Key L aboratory of Northern J aponica Rice B reeding of L iaoning ; ) Rice Institute of Sheny ang Agricultural University , Sheny ang 110161, L iaoning , China Abstract 　Ninety two indica and j ap onica rice cultivars were used to investigate the correlations between grain shapes and qualitative characteristics The results indicated that there were significant negative correlations between grain width (WD) , grain length ( GL) and grain thick ( GT) Significant positive correlations were also found between grain weight and GL , GW , GT It seemed that the grain weight was mainly controlled by GW and GT The results also showed that brown rice percentage (BRP) , milled rice percentage (MRP) and head rice percentage ( HRP) were correlated w