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中国农学通报

中国农学通报 ›› 2017, Vol. 33 ›› Issue (17): 1-7.doi: 10.11924/j.issn.1000-6850.casb16090103

所属专题： 水稻

• 农学 农业基础科学 •    下一篇

不同品种和地区对稻米镉含量与品质的耦合影响

孙亚莉,徐庆国,刘红梅,李先喆,杨 明,陈 璐   

  1. (湖南农业大学农学院,长沙 410128）
  • 收稿日期:2016-09-22 修回日期:2017-05-12 接受日期:2016-11-25 出版日期:2017-06-16 发布日期:2017-06-16
  • 通讯作者: 徐庆国
  • 基金资助:
    国家教育部“创新团队发展计划”(IRT1239)；湖南省自然科学基金“外源调控对水稻镉转运与积累的生理机理研究”(2016JJ3072)；湖南省科技厅重点研发项目计划“水稻镉低积累新品种筛选和配套栽培技术研究”(2015NK3013)；湖南省教育厅项目“作物遗传育种研究技术”(KC2011B023)。

Coupling Effect of Different Rice Cultivars and Regions on Rice Cadmium Content and Quality

Sun Yali, Xu Qingguo, Liu Hongmei, Li Xianzhe, Yang Ming, Chen Lu   

  1. (College of Agronomy, Hunan Agricultural University, Changsha 410128)
  • Received:2016-09-22 Revised:2017-05-12 Accepted:2016-11-25 Online:2017-06-16 Published:2017-06-16

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摘要： 为了研究不同水稻品种在不同种植地区的稻米镉含量及其与品质的关系，以分别种植在湖南长沙和广东惠州的‘齐丰占’、‘湘直粳’、‘玉香油占’等46个不同遗传背景的水稻品种（系）为研究对象，采用原子吸光光谱法测定稻米镉含量和FOSS全自动流动注射仪测定米质各性状指标。结果表明：（1）不同基因型水稻品种的镉积累存在极显著水平的品种间差异，在长沙地区种植稻米平均镉含量大约是惠州地区的两倍。（2）不同水稻品种（系）在惠州地区种植的稻米品质明显优于长沙地区。（3）不同水稻品种（系）在长沙地区种植的精米镉含量与胶稠度、蛋白质含量间具显著相关性；而在惠州地区主要与糙米率、精米率呈显著水平的负相关；与其他米质性状的相关性均未达显著水平。惠州地区稻田环境更利于种植水稻，‘湘晚12选32’、‘湘晚籼12号’、‘湘晚6选31’等为低镉积累品种，可推广；‘佳福占’、‘9311选’、‘R云育90’等镉含量已超过国标，不可作为生产推广品种。

关键词: 桃, 桃, 芽诱导休眠, 激素, PpPINs基因

Abstract: In order to study the cadmium content of rice varieties in different rice-growing areas and its relationship with quality. 46 rice cultivars (lines), such as ‘Qifengzhan’, ‘Xiangzhijing’, ‘Yuxiangyouzhan’, which from Changsha and Huizhou are used for materials with Atomic absorption spectrometry and FOSS automatic flow injection instrument to measure the cadmium content and rice quality. The results are as follows：(1) The differences of cadmium content between different rice cultivars（lines）and different planting areas (Changsha and Huizhou) were significant. The average cadmium content of rice in Changsha is twice as much as Huizhou. (2) The rice quality of different rice varieties (lines) planted in Huizhou was better than that in Changsha. (3) Rice cadmium content had a markedly correlation with gel consistency and protein content in Changsha, and shown a negatively correlation with brown rice rate and milled rice rate in Huizhou. And it didn’t ran up to a significant level with other rice quality traits. The environment of paddy field in Huizhou is more favorable for planting rice,‘xiangwan12-32’,‘xiangwanxian12’,‘xiangwan6-31’etc. were low-Cd accumulation varieties and can be extended. The cadmium content of‘jiafuzhan’, ‘9311selected’,‘Ryunyu90’etc. had exceeded national standard and cannot be promoted as a production varieties.

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