Journal of Stress Physiology &
Biochemistry, Vol. 9 No. 4
2013, pp. 65-72 ISSN 1997-0838
Original Text Copyright (cc) 2013 by Yadollhhi Nooshabadi,
Mashayekhi
ORIGINAL ARTICLE
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QueryDate : 2016-12-24
Cites : 0
Enzyme activity and seedling
growth of soybean seeds under accelerated aging
Yadollhhi Nooshabadi S.J.1*,
Mashayekhi F.2
1 Department of Agronomy
and Plant Breeding, Faculty of Agri, Iran. 2 Department of Soil Science, University of Shahed, Tehran,
Iran.
Seed aging is the main problem of
seed storage. Changes of bio-chemical and reduction of
seedling growth are consequence of seed deterioration. An experiment
was conducted to evaluate the effects of accelerated aging on soybean
seed germination indexes and enzyme activity. Seeds were
incubated in closed plastic boxes for the accelerated aging treatments.
Three accelerate aging regimes were performed by placing seeds at 41°C
and relative humidity (RH) of 90-100 % for 0, 2, 4, 6 and 8 days
periods. Our results showed that increasing aging duration
resulted higher reduction in germination
characteristics, catalase and ascorbate peroxidase.
Germination percentage, means time to germination, germination index,
normal seedling percentage and enzyme activity decrease significantly.
