不同栽培条件对水稻籽粒镉含量及主要性状的影响研究  

Effects of Different Cultivation Conditions on CadmiumContent of Grains and Main Characteristics in Rice

作　　者：李虎[1] 吴子帅 刘广林[1] 罗群昌[1] 陈传华[1] 朱其南 Li Hu;Wu Zishuai;Liu Guanglin;Luo Qunchang;Chen Chuanhua;Zhu Qinan(Rice Research Institute,Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics andBreeding/Guangxi Talent Highland of High Quality Rice Breeding Research,Nanning 530007,Guangxi,China)

机构地区：[1]广西农业科学院水稻研究所/广西水稻遗传育种重点实验室/广西水稻优质化育种研究人才小高地,广西南宁530007

出　　处：《作物杂志》2024年第4期203-208,共6页Crops

基　　金：广西科技重大专项(桂科AA22068087-6);广西水稻遗传育种重点实验室自主创新课题(2022-36-Z01-ZZ11);广西水稻遗传育种重点实验室自主创新课题(2022-36-Z01-ZZ01);广西农业科学院基本科研业务专项(桂农科2023YM64)。

摘　　要：为筛选高效低成本降镉栽培措施,以2份水稻低镉准品种(V1、V2)为试验材料,设空白(A0)、淹水(A1)、喷施锌肥+淹水(A2)、施生石灰+淹水(A3)、喷施锌肥+施生石灰+淹水(A4)5个栽培处理,分析各处理对材料农艺性状和精米镉含量的影响。结果表明,除V2材料晚稻A1和A2处理出现镉超标情况外,其他降镉处理镉含量均合格。V1材料晚稻A3处理对精米率、有效穗数和产量呈负向影响,V2材料晚稻A3处理对长宽比和蛋白质含量呈负向影响,A4处理对垩白粒率、垩白度呈负向影响,其他处理负向效果不显著。综合来看,V1、V2早稻和V1晚稻选用A1处理,V2晚稻选用A3处理,成本相对较低,精米镉含量不超标,对产量、米质影响较小,综合效果最优。V1、V2可在审定后搭配降镉栽培技术在广西中度镉污染稻田推广应用。In order to screen effective and low-cost cultivation measures for cadmium reduction,five treatmentswere set,including blank(A0),waterflooding(A1),zinc fertilizer+waterflooding(A2),lime+waterflooding(A3),and zinc fertilizer+lime+waterflooding(A4),using two sub-varieties of rice(V1,V2)with lowcadmiumas experimental materials.The effects of various measures on the agronomic traits and cadmiumcontent of milled rice were analyzed.The results showed that except for excessive cadmium levels in V2 late rice A1andA2 treatments,other cadmium reduction treatments had qualified cadmium content.The V1 material late rice A3treatment had negative effects on the milled rice rate,effective panicle number,and yield.The V2 material laterice A3 treatment had negative effects on the aspect ratio and protein content.The A4 treatment had a negativeeffect on the chalky grain rate and chalkiness,while the negative effects of other treatments were not significant.Overall,when V1,V2 early rice and V1 late rice were treated with A1,V2 late rice was treated with A3,the cost was relatively low,and the cadmium content in polished rice did not exceed the standard.The impact onyieldand rice quality indicators was relatively small,resulting in the best overall effect.After approval,V1 and V2canbe combined with supporting cadmium reduction cultivation techniques to promote and apply in moderatelycadmium polluted rice fields in Guangxi.

关 键 词：水稻 镉低积累 降镉措施 精米镉含量 农艺性状 

分 类 号：S511[农业科学—作物学] X53[环境科学与工程—环境工程]