Effects of cadmium stress on the seedlings growth and physiological characteristics of different wheat cultivars.

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Effects of cadmium stress on the seedlings growth and physiological characteristics of different wheat cultivars.

WANG Yun;CHEN Yao;QIAN Ya-ru;DU Yin-ping;ZHANG Yan;DONG Ying

College of Food & Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China

Received:2007-07-11 Revised:1900-01-01 Online:2008-05-10 Published:2008-05-10

Abstract

Abstract: In a hydroponic experiment, four wheat cultivars (Yumai 4, Yangmai 15, Baofeng 7228, and Ningmai 13) were used as test objects to study the effects of cadmium (Cd) stress on their seedlings growth and antioxidant enzyme system. The results indicated that under Cd stress, the plant growth, chlorophyll formation, and nitrate reductase activity were inhibited significantly, catalase (CAT) and peroxidase (POD) activities decreased dramatically, while H₂O₂ and malondialdehyde (MDA) contents increased. Such responses differed with test wheat cultivars, and Yangmai 15 had a higher Cdtolerance than the others.

Key words: Transgenic Bt cotton, Nitrogen fertilization, Square loss, Cotton aphid, Cotton leafhopper, Cotton yield

WANG Yun;CHEN Yao;QIAN Ya-ru;DU Yin-ping;ZHANG Yan;DONG Ying . Effects of cadmium stress on the seedlings growth and physiological characteristics of different wheat cultivars. [J]. cje.

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Effects of cadmium stress on the seedlings growth and physiological characteristics of different wheat cultivars.

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