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《Acta Horticulturae Sinica》 2003-01
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Effects of Heavy Metals of Pb, Cd and Cr on the Growth of Vegetables and Their Uptake

Du Yingqiong 1, He Jianghua 1, Chen Junjian 1, Wei Xiuguo 1, Yang Xiuqin 1, Wang Shaoyi 2,and He Wenbiao 2 ( 1 Ecological Environment and Soil Research Institute Guangdong Academy of Sciences, Guangdong Key Laboratory of Integrated Control of Agro Environment, Guangzhou 510650, China; 2 Guangzhou Monitoring Centre of Nuisance Free Vegetables, Guangzhou 510032, China)  
Five main leaf vegetable cultivars of Guangdong province were grown in nutrient solution with several levels of Pb, Cd and Cr to evaluate the effect of heavy metals of Pb, Cd and Cr on the vegetable growth and their uptake. The obtained results showed that heavy metals of Pb, Cd and Cr affected greatly on the growth of vegetables. The effect varied significantly with different cultivars, the sorts and levels of heavy metal. The heavy metals decreased the yield of five vegetables in following order: lettuce edible amaranth leaf mustard water spinach (swamp cabbage) flowering Chinese cabbage. The inhibiting effect of three heavy metals on five vegetables cultivars had a toxicity order: Cr Cd Pb. The amounts of residual heavy metals in eatable organs of vegetables were found to be in following order: edible amaranth lettuce flowering Chinese cabbage water spinach (swamp cabbage) leaf mustard. The cumulated rate of heavy metals: Cd Cr Pb. The vegetable yield decreased and the contentration of heavy metals increased when the levels of three heavy metals increased.
【Fund】: 广东省重点攻关项目 ( 2KM0 65 0 68) ;; 广州市重点攻关项目 ( 2 0 0 0 -Z0 99-0 1) ;; 广东省自然科学基金项目 ( 0 10 15 2 )
【CateGory Index】: X503.231
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