Effects of Fungicide on Growth and Heavy Metal Uptake of Maize (Zea may L.)

doi:10.11924/j.issn.1000-6850.casb15030182

Abstract

Abstract: In order to elucidate the effects of fungicide (Benomyl) on the heavy metal tolerance of maize (Zea may L.) and explore its potential adverse effects on non-target organisms under heavy metal pollution stress, the author conducted greenhouse pot experiments in heavy metal polluted soils, investigated the effects of Benomyl on the growth, physiology, heavy metal contents and uptake in maize (Zea may L.). The results showed that: (1) Benomyl significantly affected the growth and physiology of maize under heavy metal stress, resulted in a decrease of plant height and biomass by 14% and 23%, respectively, and an increase of MDA content in leaves by 87% ; (2) Benomyl induced a significant decrease of Cd content in maize root, and significantly reduced the uptake amount of Pb, Zn and Cd in maize plant by 32%, 33% and 43%, respectively. The results indicated that the fungicide caused a remarkable decrease of the heavy metal tolerance and uptake amount in maize under heavy metal stress.

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