Abstract
Abstract Tomato ( Lycopersicon esculentum Mill. cv. Heinz 1350) plants grown in soil with N supplied from (NH 4 ) 2 SO 4 solutions showed a morphological disorder characterized by leaf epinasty. The development of this disorder was accompanied by an increase in the rate of ethylene evolution from whole plants. Ethylene evolution from plants supplied with 0.04 m NH 4 -N increased to a peak of 112 nl·g −1 ·hr −1 at ≈2 weeks following the start of fertilization compared to 11 nl·g −1 ·hr −1 from plants supplied with 0.04 m NO 3 -N. Fertilization with KC1 in molar equivalency to the supply of NH 4 -N prevented epinasty and the burst in ethylene evolution. Ethylene evolution from plants of the yellow-green -5 and neglecta -1 mutants did not increase in response to NH 4 -N fertilization. Potassium concentrations in shoots of ‘Heinz 1350% yellow-green - 5, and neglecta -1 were 2.10, 2.53, and 3.22% (dry weight), respectively, if plants were supplied with NH 4 -N and no additional K, suggesting that tolerance to NH 4 toxicity may be explained in part by differences in K accumulation.
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Claims 7
Claim · model-written summary
Plants supplied with NH4-N evolved ethylene at a peak of 112 nl·g −1 ·hr −1, compared with 11 nl·g −1 ·hr −1 for plants supplied with NO3-N.
- Taxon
- Lycopersicon esculentum
Solanum lycopersicume2 - Treatment
- NH 4 -Ne1
- Outcome
- Ethylene evolutione1
- Direction
- increasede1
- Value
- 112 nl·g −1 ·hr −1e1
- Comparator
- NO 3 -Ne1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Ethylene evolution from plants supplied with 0.04 m NH 4 -N increased to a peak of 112 nl·g −1 ·hr −1 at ≈2 weeks following the start of fertilization compared to 11 nl·g −1 ·hr −1 from plants supplied with 0.04 m NO 3 -N”
e2“Tomato ( Lycopersicon esculentum Mill. cv. Heinz 1350) plants grown in soil with N supplied from (NH 4 ) 2 SO 4 solutions showed a morphological disorder characterized by leaf epinasty”
Claim · model-written summary
Fertilization with KCl in molar equivalency to the NH4-N supply prevented epinasty and the burst in ethylene evolution.
- Taxon
- Lycopersicon esculentumSolanum lycopersicume2
- Treatment
- Fertilization with KC1 in molar equivalency to the supply of NH 4 -Ne3
- Outcome
- epinasty and the burst in ethylene evolutione3
- Direction
- preventede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Tomato ( Lycopersicon esculentum Mill. cv. Heinz 1350) plants grown in soil with N supplied from (NH 4 ) 2 SO 4 solutions showed a morphological disorder characterized by leaf epinasty”
e3“Fertilization with KC1 in molar equivalency to the supply of NH 4 -N prevented epinasty and the burst in ethylene evolution”
Claim · model-written summary
Ethylene evolution of the yellow-green -5 and neglecta -1 mutants did not increase in response to NH4-N fertilization.
- Taxon
- Lycopersicon esculentumSolanum lycopersicume2
- Material
- yellow-green -5 and neglecta -1e4
- Treatment
- NH 4 -N fertilizatione4
- Outcome
- Ethylene evolutione4
- Direction
- did not increasee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Tomato ( Lycopersicon esculentum Mill. cv. Heinz 1350) plants grown in soil with N supplied from (NH 4 ) 2 SO 4 solutions showed a morphological disorder characterized by leaf epinasty”
e4“Ethylene evolution from plants of the yellow-green -5 and neglecta -1 mutants did not increase in response to NH 4 -N fertilization”
Claim · model-written summary
Shoots of Heinz 1350 supplied with NH4-N and no extra K contained 2.10% potassium on a dry weight basis.
- Taxon
- Lycopersicon esculentumSolanum lycopersicume2
- Material
- Heinz 1350e5
- Organ / stage
- shootse5
- Outcome
- Potassium concentrationse5
- Value
- 2.10e5
- Qualifier
- % (dry weight)e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Tomato ( Lycopersicon esculentum Mill. cv. Heinz 1350) plants grown in soil with N supplied from (NH 4 ) 2 SO 4 solutions showed a morphological disorder characterized by leaf epinasty”
e5“Potassium concentrations in shoots of ‘Heinz 1350% yellow-green - 5, and neglecta -1 were 2.10, 2.53, and 3.22% (dry weight), respectively, if plants were supplied with NH 4 -N and no additional K”
Claim · model-written summary
Shoots of the yellow-green -5 mutant supplied with NH4-N and no extra K contained 2.53% potassium on a dry weight basis.
- Taxon
- Lycopersicon esculentumSolanum lycopersicume2
- Material
- yellow-green - 5e5
- Organ / stage
- shootse5
- Outcome
- Potassium concentrationse5
- Value
- 2.53e5
- Qualifier
- % (dry weight)e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Tomato ( Lycopersicon esculentum Mill. cv. Heinz 1350) plants grown in soil with N supplied from (NH 4 ) 2 SO 4 solutions showed a morphological disorder characterized by leaf epinasty”
e5“Potassium concentrations in shoots of ‘Heinz 1350% yellow-green - 5, and neglecta -1 were 2.10, 2.53, and 3.22% (dry weight), respectively, if plants were supplied with NH 4 -N and no additional K”
Claim · model-written summary
Shoots of the neglecta -1 mutant supplied with NH4-N and no extra K contained 3.22% potassium on a dry weight basis.
- Taxon
- Lycopersicon esculentumSolanum lycopersicume2
- Material
- neglecta -1e5
- Organ / stage
- shootse5
- Outcome
- Potassium concentrationse5
- Value
- 3.22e5
- Qualifier
- % (dry weight)e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Tomato ( Lycopersicon esculentum Mill. cv. Heinz 1350) plants grown in soil with N supplied from (NH 4 ) 2 SO 4 solutions showed a morphological disorder characterized by leaf epinasty”
e5“Potassium concentrations in shoots of ‘Heinz 1350% yellow-green - 5, and neglecta -1 were 2.10, 2.53, and 3.22% (dry weight), respectively, if plants were supplied with NH 4 -N and no additional K”
Claim · model-written summary
Tolerance to NH4 toxicity may be explained in part by differences in K accumulation.
- Taxon
- Lycopersicon esculentumSolanum lycopersicume2
- Outcome
- tolerance to NH4 toxicitye6
- Qualifier
- differences in K accumulatione6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Tomato ( Lycopersicon esculentum Mill. cv. Heinz 1350) plants grown in soil with N supplied from (NH 4 ) 2 SO 4 solutions showed a morphological disorder characterized by leaf epinasty”
e6“suggesting that tolerance to NH4 toxicity may be explained in part by differences in K accumulation”
The same questions in other papers
fertilization · physiology: hormones · Solanum lycopersicum (tomato)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
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.