镉低积累中稻品种生育期、产量与镉含量比较  

Comparison of Growth Period,Yield and Cadmium Content of Middle-season Rice Varieties with Low Cadmium Accumulation

作　　者：肖时军 向劼 张茂哲 苏雨婷 刘虎 XIAO Shijun;XIANG Jie;ZHANG Maozhe;SU Yuting;LIU Hu(Hunan Provincial Demonstration Center for the Introduction of Improved Crop Varieties,Changsha,Hunan 410016,China;Hunan Crop Seed Disaster Relief and Reserve Center,Changsha,Hunan 410016,China)

机构地区：[1]湖南省农作物良种引进示范中心,湖南长沙410016 [2]湖南省农作物种子救灾储备中心,湖南长沙410016

出　　处：《作物研究》2024年第5期339-342,358,共5页Crop Research

摘　　要：为了分析镉低积累中稻品种的适应性、安全性与丰产性,2023年在湖南长沙以臻两优8612为对照,对7个镉低积累中稻品种的生育期、产量及稻谷镉含量进行分析。结果表明:在土壤有效镉含量为0.31 mg/kg、 pH值为6.0的条件下,参试品种的稻谷全镉含量为0.043~0.104 mg/kg,均低于国家规定的安全限值(0.200 mg/kg);比对照(产量9 097.7 kg/hm^(2))增产的参试品种有2个,分别为镜两优久香(9 256.6 kg/hm^(2))和洁两优1954(9 360.9 kg/hm^(2)),其产量分别较对照高1.7%和2.9%;全生育期比对照(125 d)短的参试品种有5个,分别为镜两优久香(112 d)、兴湘7号(114 d)、湘康4号(117 d)、津两优青莲玉占(116 d)、旗两优Q8(113 d)。试验结果可为安全、优质、高产的镉低积累水稻品种选择和推广提供参考。In order to analyze the adaptability,safety and high yield of medium rice varieties with low cadmium accumulation.In 2023,Zhenliangyou 8612 was be used as the control variety in Changsha,Hunan,and the growth period,yield,and cadmium content in rice grains of seven low cadmium accumulation rice varieties were analyzed.The results showed that under the experimental conditions of soil available cadmium content of 0.31 mg/kg and soil pH value of 6.0,the total cadmium content of the tested varieties was 0.043-0.104 mg/kg,all of which were lower than the upper limit of the national food safety standard(0.200 mg/kg).Two tested varieties showed an increase in yield compared to the control variety(yield of 9097.7 kg/hm^(2)),they were Jingliangyou Jiuxiang(9256.6 kg/hm^(2))and Jieliangyou 1954(9360.9 kg/hm^(2))respectively,the yields of which were 1.7%and 2.9%higher than the control respectively.There are five tested varieties with a shorter growth period than the control variety(125 days),namely Jingliangyou Jiuxiang(112 days),Xingxiang No.7(114 days),Xiangkang No.4(117 days),Jinliangyou Qinglian Yuzhan(116 days),and Qiliangyou Q8(113 days).The test results provide support for the select and promotion of safer,better quality and higher yield rice varieties with low cadmium accumulation.

关 键 词：中稻 镉低积累 品种 生育期 产量 

分 类 号：S511.032[农业科学—作物学]