Han LIU, Si-yang JIN, Li-xue YANG, et al. Effect of Nitrogen Application on Antioxidant Enzyme System of Acanthopanax senticosus[J]. Chinese journal of experimental traditional medical formulae, 2020, 26(4): 157-161.
DOI:
Han LIU, Si-yang JIN, Li-xue YANG, et al. Effect of Nitrogen Application on Antioxidant Enzyme System of Acanthopanax senticosus[J]. Chinese journal of experimental traditional medical formulae, 2020, 26(4): 157-161. DOI: 10.13422/j.cnki.syfjx.20200312.
Effect of Nitrogen Application on Antioxidant Enzyme System of Acanthopanax senticosus
To study the effect of different N application rates on the growth and development of
Acanthopanax senticosus
and the changes of antioxidant enzyme activity
and screen out the suitable amount of nitrogen fertilizer for its growth and development
in order to provide scientific evidence for rational fertilization of
Acanthopanax senticosus
in artificial cultivation.
Method:
2
By single-point
single-factor field experiment
the study samples were one-year-old seedlings of growing evenly
A
.
senticosus
.Five nitrogen application treatment groups were set up in the fields.They were N1 (30 g·m
-2
)
N2 (60 g·m
-2
)
N3 (90 g·m
-2
)
N4 (120 g·m
-2
)
N5 (150 g·m
-2
) and CK (0 g·m
-2
) in the control group.Three months later
the raw weight of plant
root
leaf and stem were measured at harvest time.After drying to constant weight
plant dry weight
stem dry weight
leaf dry weight and root dry weight were measured.Fresh leaves of plants were collected to measure malondialdehyde(MDA) content and activities of catalase(CAT)
superoxide dismutase(SOD)
peroxidase(POD)
acid phosphatase(ACP) and aseorbateperoxidase(APX) after harvesting seedlings.
Result:
2
The biomass of
A
.
senticosus
in group N4 (120 g·m
-2
) was the highest
the protein content in group N3 (90 g·m
-2
) was the highest
and the activity of all antioxidant enzymes in group N3 (90 g·m
-2
) was the lowest.
Conclusion:
2
There is a dose-effect relationship between seedlings and the nitrogen application rate.That is to say
low nitrogen application rate and high nitrogen application rate will cause stress on
Acanthopanax senticosus
and the activity of antioxidant enzymes under low nitrogen application rate is higher than that under high nitrogen application rate.
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