镉胁迫对不同类型花生品种籽仁品质和镉含量的影响  

Changes of Seed Quality and Cadmium Content of Different Peanut Genotypes under Cadmium Stress

作　　者：杨志艺[1,2] 万书波[3] 范仲学[4] 闫彩霞[2] 李春娟[2] 单世华[2] 

机构地区：[1]中国海洋大学,山东青岛266100 [2]山东省花生研究所,山东青岛266100 [3]山东省农业科学院,山东济南250100 [4]山东省农业科学院高新技术研究中心,山东济南250100

出　　处：《山东农业科学》2009年第3期63-66,共4页Shandong Agricultural Sciences

基　　金：国家科技支撑计划项目(2006BAD21B04);山东省良种工程"种质资源创新利用"项目

摘　　要：采用盆栽试验,研究了镉胁迫对5个不同类型花生品种籽仁品质和镉含量的影响及品种间的差异。结果表明,不同镉水平(≤24 mg/kg)胁迫下,花生籽仁中镉含量随土壤镉含量的增加而增加(P<0.05),其中在低镉浓度(<3 mg/kg)下,花生籽仁的镉积累能力较强,但品种间镉积累能力存在显著差异(P<0.05);镉胁迫对花生籽仁蛋白质和重要不饱和脂肪酸含量均有影响,但品种间存在差异,KB054是本试验中镉耐受能力最强的品种。The pot experiment was conducted to study the effects of cadmium stress on seed quality and cadmium content of five peanut genotypes. The results indicated that within the range of test Cd concentrations, the Cd content in peanut seed increased significantly with the increasing of Cd concentration in soil （ P 〈 0. 05 ）, and the seed could accumulate Cd more easily when the soil Cd concentration was lower than 3 mg/kg, but the accumulation ability differed significantly within genotypes （P 〈 0. 05）. Cd stress had obvious effects on the seed protein and unsaturated fatty acid contents, but the effects differed within genotypes. KB054 was the strongest Cd -tolerance genotype among the tested five peanut genotypes.

关 键 词：花生籽仁 品质 镉积累 

分 类 号：S565.201[农业科学—作物学]