EFFECT OF DDT ON PLANT MINERAL-NUTRITION

被引：2

作者：

MITRA, J

RAMACHANDRAN, V

NIRALE, AS

机构：

[1] Nuclear Agriculture Division, Bhabha Atomic Research Centre, Bombay, 400 085, Trombay

来源：

ENVIRONMENTAL POLLUTION | 1991年 / 70卷 / 01期

关键词：

D O I：

10.1016/0269-7491(91)90132-G

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

DDT added to soil at a concentration of 50-mu-g g-1 had no inhibitory effects on germination and plant growth of barely, mung and rice, but considerably inhibited the oilseed species tested in the laboratory. The uptake of one or other ions was affected in varying degrees, with plants grown in DDT-treated soils. Detailed field studies of a peanut crop further confirmed the inhibition of ion uptake with DDT, especially Ca2+ and K+. Reduced uptake of Rb-86 by germinated peanut seeds in the presence of DDT further supported the observations made with K+. Cell number and length in plants were reduced in plants grown in DDT-treated soil and the role of calcium is discussed. It appears that growth inhibition in oil seed plants may arise from the low levels of Ca2+ and K+ in plants grown in DDT-treated soils.

引用

页码：71 / 80

页数：10

共 13 条

[1]

BAKER DA, 1983, PHYTOCHEMICAL SOC EU, V21, P3

[2] CALCIUM AND PLANT GROWTH [J].