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Journal of Zhejiang University SCIENCE B 2009 Vol.10 No.6 P.427-433

http://doi.org/10.1631/jzus.B0820373


Seed priming with chitosan improves maize germination and seedling growth in relation to physiological changes under low temperature stress


Author(s):  Ya-jing GUAN, Jin HU, Xian-ju WANG, Chen-xia SHAO

Affiliation(s):  Seed Science Center, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310029, China; more

Corresponding email(s):   jhu@dial.zju.edu.cn

Key Words:  Seed priming, Chitosan, Low temperature stress, Germination, Physiological changes, Maize


Ya-jing GUAN, Jin HU, Xian-ju WANG, Chen-xia SHAO. Seed priming with chitosan improves maize germination and seedling growth in relation to physiological changes under low temperature stress[J]. Journal of Zhejiang University Science B, 2009, 10(6): 427-433.

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author="Ya-jing GUAN, Jin HU, Xian-ju WANG, Chen-xia SHAO",
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volume="10",
number="6",
pages="427-433",
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publisher="Zhejiang University Press & Springer",
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%0 Journal Article
%T Seed priming with chitosan improves maize germination and seedling growth in relation to physiological changes under low temperature stress
%A Ya-jing GUAN
%A Jin HU
%A Xian-ju WANG
%A Chen-xia SHAO
%J Journal of Zhejiang University SCIENCE B
%V 10
%N 6
%P 427-433
%@ 1673-1581
%D 2009
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.B0820373

TY - JOUR
T1 - Seed priming with chitosan improves maize germination and seedling growth in relation to physiological changes under low temperature stress
A1 - Ya-jing GUAN
A1 - Jin HU
A1 - Xian-ju WANG
A1 - Chen-xia SHAO
J0 - Journal of Zhejiang University Science B
VL - 10
IS - 6
SP - 427
EP - 433
%@ 1673-1581
Y1 - 2009
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.B0820373


Abstract: 
low temperature stress during germination and early seedling growth is an important constraint of global production of maize. The effects of seed priming with 0.25%, 0.50%, and 0.75% (w/v) chitosan solutions at 15 °C on the growth and physiological changes were investigated using two maize (Zea mays L.) inbred lines, HuangC (chilling-tolerant) and Mo17 (chilling-sensitive). While seed priming with chitosan had no significant effect on germination percentage under low temperature stress, it enhanced germination index, reduced the mean germination time (MGT), and increased shoot height, root length, and shoot and root dry weights in both maize lines. The decline of malondialdehyde (MDA) content and relative permeability of the plasma membrane and the increase of the concentrations of soluble sugars and proline, peroxidase (POD) activity, and catalase (CAT) activity were detected both in the chilling-sensitive and chilling-tolerant maize seedlings after priming with the three concentrations of chitosan. HuangC was less sensitive to responding to different concentrations of chitosan. Priming with 0.50% chitosan for about 60~64 h seemed to have the best effects. Thus, it suggests that seed priming with chitosan may improve the speed of germination of maize seed and benefit for seedling growth under low temperature stress.

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

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