Abstract
Abstract Ammonium nutrition, in comparison to NO 3 –N nutrition, of tomato in sand culture reduced shoot growth, total and mean fruit weight, fruit number, leaf xylem pressure potential, leaf CA, Mg, and NO 3 concentration, and normal fruit Ca, Mg, K, and NO 3 concentration. Leaf diffusive resistance, leaf NH 4 concentration, and blossom-end rot incidence were increased by NH 4 –N nutrition. Increasing substrate NO 3 level increased shoot growth, fruit number per plant, and fruit NO 3 concentration. Increasing substrate NH 4 level increased leaf diffusive resistance, and leaf xylem pressure potential, but had no effect on shoot growth. Under both N forms, increasing N level did not affect fruit yield or normal fruit Ca, K, or P concentration, but decreased leaf Ca, Mg, and P concentration, and increased normal fruit Mg. Blossom-end rot occurred only under NH 4 –N nutrition. Affected fruit had lower Ca, Mg, NO 3 , and NH 4 concentration and higher fruit K/Ca ratio. Fruit condition exerted no effect on fruit P or K concentration.
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Claims 14
Claim · model-written summary
Ammonium nutrition reduced shoot growth, total and mean fruit weight, and fruit number relative to nitrate nutrition.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- Ammonium nutritione0
- Outcome
- shoot growth, total and mean fruit weight, fruit numbere0
- Direction
- reducede0
- Comparator
- NO 3 –N nutritione0
- Setting
- sand culturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ammonium nutrition, in comparison to NO 3 –N nutrition, of tomato in sand culture reduced shoot growth, total and mean fruit weight, fruit number”
Claim · model-written summary
Ammonium nutrition reduced leaf xylem pressure potential and leaf Ca, Mg and nitrate concentration.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Ammonium nutritione0
- Outcome
- leaf xylem pressure potential, leaf CA, Mg, and NO 3 concentratione0
- Direction
- reducede0
- Comparator
- NO 3 –N nutritione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ammonium nutrition, in comparison to NO 3 –N nutrition, of tomato in sand culture reduced shoot growth, total and mean fruit weight, fruit number, leaf xylem pressure potential, leaf CA, Mg, and NO 3 concentration”
Claim · model-written summary
Ammonium nutrition reduced normal fruit Ca, Mg, K and nitrate concentrations.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Ammonium nutritione0
- Outcome
- normal fruit Ca, Mg, K, and NO 3 concentratione0
- Direction
- reducede0
- Comparator
- NO 3 –N nutritione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ammonium nutrition, in comparison to NO 3 –N nutrition, of tomato in sand culture reduced shoot growth, total and mean fruit weight, fruit number, leaf xylem pressure potential, leaf CA, Mg, and NO 3 concentration, and normal fruit Ca, Mg, K, and NO 3 concentration.”
Claim · model-written summary
Ammonium nutrition increased leaf diffusive resistance, leaf ammonium concentration and blossom-end rot incidence.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- NH 4 –N nutritione0
- Outcome
- Leaf diffusive resistance, leaf NH 4 concentration, and blossom-end rot incidencee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf diffusive resistance, leaf NH 4 concentration, and blossom-end rot incidence were increased by NH 4 –N nutrition.”
e1“of tomato in sand culture”
Claim · model-written summary
Increasing nitrate level increased shoot growth, fruit number per plant and fruit nitrate concentration.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- Increasing substrate NO 3 levele0
- Outcome
- shoot growth, fruit number per plant, and fruit NO 3 concentratione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing substrate NO 3 level increased shoot growth, fruit number per plant, and fruit NO 3 concentration.”
e1“of tomato in sand culture”
Claim · model-written summary
Increasing ammonium level increased leaf diffusive resistance and xylem pressure potential.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- Increasing substrate NH 4 levele0
- Outcome
- leaf diffusive resistance, and leaf xylem pressure potentiale0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing substrate NH 4 level increased leaf diffusive resistance, and leaf xylem pressure potential”
e1“of tomato in sand culture”
Claim · model-written summary
Increasing ammonium level had no effect on shoot growth.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- Increasing substrate NH 4 levele0
- Outcome
- shoot growthe0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing substrate NH 4 level increased leaf diffusive resistance, and leaf xylem pressure potential, but had no effect on shoot growth.”
e1“of tomato in sand culture”
Claim · model-written summary
Under both nitrogen forms, increasing nitrogen level did not affect fruit yield or normal fruit Ca, K or P concentration.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- increasing N levele0
- Outcome
- fruit yield or normal fruit Ca, K, or P concentratione0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under both N forms, increasing N level did not affect fruit yield or normal fruit Ca, K, or P concentration”
e1“of tomato in sand culture”
Claim · model-written summary
Under both nitrogen forms, increasing nitrogen level decreased leaf Ca, Mg and P concentration.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- increasing N levele0
- Outcome
- leaf Ca, Mg, and P concentratione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under both N forms, increasing N level did not affect fruit yield or normal fruit Ca, K, or P concentration, but decreased leaf Ca, Mg, and P concentration”
e1“of tomato in sand culture”
Claim · model-written summary
Under both nitrogen forms, increasing nitrogen level increased normal fruit Mg.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- increasing N levele0
- Outcome
- normal fruit Mge0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under both N forms, increasing N level did not affect fruit yield or normal fruit Ca, K, or P concentration, but decreased leaf Ca, Mg, and P concentration, and increased normal fruit Mg.”
e1“of tomato in sand culture”
Claim · model-written summary
Blossom-end rot occurred only under ammonium nutrition.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- NH 4 –N nutritione0
- Outcome
- Blossom-end rote0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Blossom-end rot occurred only under NH 4 –N nutrition.”
e1“of tomato in sand culture”
Claim · model-written summary
Affected fruit had lower Ca, Mg, nitrate and ammonium concentrations.
- Taxon
- tomatoSolanum lycopersicume1
- Organ / stage
- Affected fruite0
- Outcome
- Ca, Mg, NO 3 , and NH 4 concentratione0
- Direction
- lowere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Affected fruit had lower Ca, Mg, NO 3 , and NH 4 concentration”
e1“of tomato in sand culture”
Claim · model-written summary
Affected fruit had a higher K/Ca ratio.
- Taxon
- tomatoSolanum lycopersicume1
- Organ / stage
- Affected fruite0
- Outcome
- fruit K/Ca ratioe0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Affected fruit had lower Ca, Mg, NO 3 , and NH 4 concentration and higher fruit K/Ca ratio.”
e1“of tomato in sand culture”
Claim · model-written summary
Fruit condition did not affect fruit P or K concentration.
- Taxon
- tomatoSolanum lycopersicume1
- Organ / stage
- Fruite0
- Outcome
- fruit P or K concentratione0
- Direction
- no effecte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit condition exerted no effect on fruit P or K concentration.”
e1“of tomato in sand culture”
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