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Received: 2005-06-03

Revision Accepted: 2005-07-14

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Journal of Zhejiang University SCIENCE B 2005 Vol.6 No.10 P.974~980

10.1631/jzus.2005.B0974


Effect of cadmium on growth and photosynthesis of tomato seedlings


Author(s):  DONG Jing, WU Fei-bo, ZHANG Guo-ping

Affiliation(s):  Department of Agronomy, Zhejiang University, Hangzhou 310029, China

Corresponding email(s):   Zhanggp@zju.edu.cn

Key Words:  Cadmium, Growth, Photosynthesis, Tomato


DONG Jing, WU Fei-bo, ZHANG Guo-ping. Effect of cadmium on growth and photosynthesis of tomato seedlings[J]. Journal of Zhejiang University Science B, 2005, 6(10): 974~980.

@article{title="Effect of cadmium on growth and photosynthesis of tomato seedlings",
author="DONG Jing, WU Fei-bo, ZHANG Guo-ping",
journal="Journal of Zhejiang University Science B",
volume="6",
number="10",
pages="974~980",
year="2005",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2005.B0974"
}

%0 Journal Article
%T Effect of cadmium on growth and photosynthesis of tomato seedlings
%A DONG Jing
%A WU Fei-bo
%A ZHANG Guo-ping
%J Journal of Zhejiang University SCIENCE B
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%P 974~980
%@ 1673-1581
%D 2005
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2005.B0974

TY - JOUR
T1 - Effect of cadmium on growth and photosynthesis of tomato seedlings
A1 - DONG Jing
A1 - WU Fei-bo
A1 - ZHANG Guo-ping
J0 - Journal of Zhejiang University Science B
VL - 6
IS - 10
SP - 974
EP - 980
%@ 1673-1581
Y1 - 2005
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2005.B0974


Abstract: 
A hydroponic experiment carried out to study the effect of five Cd levels on growth and photosynthesis of two tomato cultivars showed that the addition of 0.1 μmol/L Cd induced a slight increase in plant height of Hezuo 903 and the SPAD (the Soil–Plant Analyses Development) value of the 2 cultivars. However, at higher Cd levels, i.e., 1 and 10 μmol/L, root length and volume, plant height, and SPAD value were all significantly reduced. On an average of the 2 cultivars, exposure to 1 and 10 μmol/L Cd for 33 d reduced plant height by 18.9% and 46.4% and SPAD value by 11.2% and 31.6%, compared with control, respectively. Similarly, root length was reduced by 41.1% and 25.8% and root volume by 45.2% and 63.7%, respectively. The addition of Cd in the growth medium also had significant deleterious effect on net photosynthetic rate (Pn) and intracellular CO2 concentration (Ci), with Pn being reduced by 27.2% and 62.1% at 1 μmol/L and 10 μmol/L Cd treatments compared to the control, respectively, while Ci increased correspondingly by 28.4% and 39.3%.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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