Abstract
The characteristics of nitrate uptake kinetic in the solution of five ratios of ammonium and nitrate by modified depleting way treated with 0.2 mmol/L CaSO4 solution for three days were studied to discover the ammonium and nitrate nutrition properties of banana seedlings.The result showed that the nitrate uptake kinetic characteristics of all treatments with five ratios of ammonium and nitrate followed the enzyme kinetic model of Michaelis-Menten.Increasing ammonium ratio remarkably influenced Vmax and Km;Vmax would be reduced more to the Hoagland solution adding 10% ammonium than that in placement of 10% ammonium with 10% nitrate,although Km had no distinct difference between these two treatments.The nitrate uptake rate would be reduced in soil of 100% nitrate treated with increasing ammonium ratios.The nitrate affinity.would be decreased treated with 10% more ammonium,while that for the 25% ammonium treatment was in the opposite direction.The nitrate uptake for banana seedlings belonged to low affinity system.
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Claims 7
Claim · model-written summary
Nitrate uptake kinetics under all five ammonium:nitrate ratios followed the Michaelis-Menten model.
Verbatim
e0“nitrate uptake kinetic characteristics of all treatments with five ratios of ammonium and nitrate followed the enzyme kinetic model of Michaelis-Menten”
t0“Banana Seedlings”
Claim · model-written summary
Adding 10% ammonium to Hoagland solution reduced Vmax more than replacing 10% nitrate with ammonium.
Verbatim
e0“Vmax would be reduced more to the Hoagland solution adding 10% ammonium than that in placement of 10% ammonium with 10% nitrate”
t0“Banana Seedlings”
Claim · model-written summary
Km did not differ distinctly between the two 10% ammonium treatments.
Verbatim
e0“Km had no distinct difference between these two treatments”
e1“Hoagland solution adding 10% ammonium than that in placement of 10% ammonium with 10% nitrate”
t0“Banana Seedlings”
Claim · model-written summary
Increasing ammonium ratios reduced nitrate uptake rate in 100% nitrate soil.
- Taxon
- Bananat0
- Treatment
- increasing ammonium ratiose0
- Outcome
- nitrate uptake ratee0
- Direction
- reducede0
- Setting
- soile0
Not reportedComparator
Verbatim
e0“nitrate uptake rate would be reduced in soil of 100% nitrate treated with increasing ammonium ratios”
t0“Banana Seedlings”
Claim · model-written summary
Nitrate affinity decreased with 10% more ammonium.
Not reportedComparator
Verbatim
e0“nitrate affinity.would be decreased treated with 10% more ammonium”
t0“Banana Seedlings”
Claim · model-written summary
Nitrate affinity increased under 25% ammonium treatment.
- Taxon
- Bananat0
- Treatment
- 25% ammonium treatmente0
- Outcome
- nitrate affinitye0
- Direction
- opposite directione0
Not reportedComparator
Verbatim
e0“nitrate affinity.would be decreased treated with 10% more ammonium,while that for the 25% ammonium treatment was in the opposite direction”
t0“Banana Seedlings”
Claim · model-written summary
Banana seedling nitrate uptake belonged to a low-affinity system.
Not reportedDirection
Verbatim
e0“nitrate uptake for banana seedlings belonged to low affinity system”
The same questions in other papers
nitrogen · nutrient: content · MusaPositive and negative results
7 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- no effect
7 papers more in this group
See all 11 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.