草莓对镉的吸收积累特性及调控研究

园艺学报 ›› 2003, Vol. 30 ›› Issue (5): 514-518.

草莓对镉的吸收积累特性及调控研究

张金彪¹;黄维南³;柯玉琴²

(¹ 福建农林大学测试中心, 福州350002; ²福建农林大学生命科学学院, 福州350002;³福建亚热带植物研究所, 厦门361006)

收稿日期:2002-10-15 修回日期:2003-01-20 出版日期:2003-10-25 发布日期:2003-10-25

Cadmium Absorption Characteristics of Strawberry and Regulative Measures

Zhang Jinbiao¹;Huang Weinan³;Ke Yuqin²

(¹ Test Center , Fujian Agriculture and Forestry University , Fuzhou 350002 , China ; ²College of Life Science , Fujian Agricultural and Forestry University , Fuzhou 350002 , China ; ³ Fujian Institute of Subtropical Botany , Xiamen 361006 , China)

Received:2002-10-15 Revised:2003-01-20 Online:2003-10-25 Published:2003-10-25

摘要/Abstract

摘要： 在草莓体内, 镉(Cd) 按照富集系数根> 茎> 叶> 果的规律分布; 在营养液中, 草莓对镉的吸收量随时间的延长而增加, 草莓对镉的吸收速率在40 min 时达到高峰, 随后逐渐降低。水培试验表明,钙、磷能够降低草莓对镉的吸收; 土培试验表明, CaCO₃和Na₂SiO₃ 均能降低镉在草莓果实中的积累, 这种降低与土壤酸度的降低有关, CaCO₃ 对降低草莓果实镉的积累更为明显, 这种降低可能还与钙对镉的拮抗有关。土壤中添加CaCO₃ 是一种切实可行的降低草莓果镉积累的措施。

关键词: 草莓, 镉(Cd), 积累

Abstract:

In strawberry , Cadmium regularly distributed in accordance with accumulation factors. In light of cd-decreasing order the arrangements were root , stems , leaves and fruit . Cadmium absorption amount in strawberry increased with time , while the cadmium absorption rate gradually decreased in the meantime. In the nutrition liquid , the cadmium absorption rate reached the peak after 40 minutes , and then the absorption rate gradually reduced. The experiment of hydroponics culture showed that Ca and P could reduce the cadmium absorption.The pot experiment showed CaCO₃and Na₂SiO₃ could decrease the accumulation of cadmium in strawberryps fruit and other organs. The reduction of cadmium in strawberry may be relevant to the reduction of soil acid degree and the resistance of Ca to cadmium. CaCO₃ appeared more significant in reducing the accumulation of cadmium in strawberryps fruit and other organs. It was a practical regulative measure to add some CaCO₃ into the soil in order to decrease the accumulation of cadmium.

Key words: Strawberry, Cadmium, Accumulation

中图分类号:

S 668.4

张金彪;黄维南;柯玉琴. 草莓对镉的吸收积累特性及调控研究[J]. 园艺学报, 2003, 30(5): 514-518.

Zhang Jinbiao;Huang Weinan;Ke Yuqin. Cadmium Absorption Characteristics of Strawberry and Regulative Measures[J]. ACTA HORTICULTURAE SINICA, 2003, 30(5): 514-518.

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