Abstract
From the viewpoint of high-yield application of fertilizers,under different fertilizer supply,studies were made about protective enzyme activites and lipid peroxidation of leaves in later stage of maize.Results indicated that at filling stage,milky stage and dough stage,changing of enzymes with growing stage were the same trend,the activities of superoxide dismutase(SOD) reduced sharply then increased slightly;catalase(CAT) declined all the time;peroxedase(POD) increased earlier then reduced,malondialdehyde(MDA) increased straight.Effects of different fertilizer supply on protective enzyme activities and MDA content were different.Propriety N,P,K fertilizer application(N 240 kg/ha,P2O5 150-225 kg/ha and K2O 240 kg/ha) can defer decrepitude effectively of leaves at latter growing stage.Apply excessive or lacking N,P and K fertilizer can sharpen lipid peroxidation degree and became decrepitude earlier.
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Claims 6
Claim · model-written summary
SOD activity declined sharply then increased slightly across later growth stages.
- Gene
- superoxide dismutase(SOD)e0
- Outcome
- activities of superoxide dismutase(SOD)e0
- Direction
- reduced sharply then increased slightlye0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the activities of superoxide dismutase(SOD) reduced sharply then increased slightly”
t0“Maize”
t1“Maize”
Claim · model-written summary
CAT activity declined throughout the stages.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“catalase(CAT) declined all the time”
t0“Maize”
t1“Maize”
Claim · model-written summary
POD activity rose then fell.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“peroxedase(POD) increased earlier then reduced”
t0“Maize”
t1“Maize”
Claim · model-written summary
MDA increased steadily.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“malondialdehyde(MDA) increased straight”
t0“Maize”
t1“Maize”
Claim · model-written summary
Proper NPK application delayed late leaf senescence.
- Organ / stage
- leavese0
- Treatment
- N,P,K fertilizer application(N 240 kg/ha,P2O5 150-225 kg/ha and K2O 240 kg/ha)e0
- Outcome
- decrepitudee0
- Direction
- defere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Propriety N,P,K fertilizer application(N 240 kg/ha,P2O5 150-225 kg/ha and K2O 240 kg/ha) can defer decrepitude effectively of leaves at latter growing stage”
t0“Maize”
t1“Maize”
Claim · model-written summary
Excessive or insufficient NPK increased lipid peroxidation and advanced senescence.
- Treatment
- excessive or lacking N,P and K fertilizere0
- Outcome
- lipid peroxidation degree and became decrepitudee0
- Direction
- sharpene0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Apply excessive or lacking N,P and K fertilizer can sharpen lipid peroxidation degree and became decrepitude earlier”
t0“Maize”
t1“Maize”
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