Abstract
Water solutions of urea and sucrose at 0 5 M. concentrations, alone and combined, were used as foliar sprays on determinate tomato plants in green-house trials Leaves absorbed and utilized urea applied in spray form but fruit maturity was retarded and the C/N ratio in leaves was depressed in comparison to that observed in root-fed plants. No direct evidence was obtained of sucrose absorption, but the addition of an equi-molar concentration of sucrose brought about a marked reduction in foliar injury due to urea spray. This combined spray significantly increased the development of plant tops and resulted also in abnormally large accretion of starch in plant stems, and soluble carbon in the fruits On the other hand, combining sucrose with urea resulted in certain unfavourable responses Fruit ripening was delayed, fruit set was normal, but the proportion was low of fruits that developed in size beyond the early post-setting stage, and total yield of fruit was reduced.
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Claims 12
Claim · model-written summary
Sprayed urea was absorbed and utilized by leaves.
- Taxon
- Tomato Plants
Solanum lycopersicumt0 - Treatment
- urea applied in spray forme0
- Outcome
- absorbed and utilized ureae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato Plants”
e0“Leaves absorbed and utilized urea applied in spray form”
Claim · model-written summary
Urea spray retarded fruit maturity versus root feeding.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Treatment
- ureae1
- Outcome
- fruit maturitye0
- Direction
- retardede0
- Comparator
- root-fed plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato Plants”
e0“fruit maturity was retarded and the C/N ratio in leaves was depressed in comparison to that observed in root-fed plants”
e1“Leaves absorbed and utilized urea applied in spray form”
Claim · model-written summary
Urea spray depressed leaf C/N ratio versus root feeding.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Treatment
- ureae1
- Outcome
- C/N ratio in leavese0
- Direction
- depressede0
- Comparator
- root-fed plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato Plants”
e0“fruit maturity was retarded and the C/N ratio in leaves was depressed in comparison to that observed in root-fed plants”
e1“Leaves absorbed and utilized urea applied in spray form”
Claim · model-written summary
There was no direct evidence of sucrose absorption.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Outcome
- sucrose absorptione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato Plants”
e0“No direct evidence was obtained of sucrose absorption”
Claim · model-written summary
Adding equimolar sucrose reduced foliar injury caused by urea spray.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Treatment
- addition of an equi-molar concentration of sucrosee0
- Outcome
- foliar injury due to urea spraye0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato Plants”
e0“the addition of an equi-molar concentration of sucrose brought about a marked reduction in foliar injury due to urea spray”
Claim · model-written summary
Combined urea and sucrose spray increased development of plant tops.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Treatment
- combined spraye0
- Outcome
- development of plant topse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato Plants”
e0“This combined spray significantly increased the development of plant tops”
Claim · model-written summary
Combined spray produced abnormally large stem starch accretion.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Outcome
- accretion of starch in plant stemse0
- Direction
- abnormally largee0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato Plants”
e0“resulted also in abnormally large accretion of starch in plant stems, and soluble carbon in the fruits”
Claim · model-written summary
Combined spray produced abnormally large soluble carbon accretion in fruits.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Treatment
- combined spraye0
- Outcome
- soluble carbon in the fruitse0
- Direction
- abnormally largee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato Plants”
e0“This combined spray significantly increased the development of plant tops and resulted also in abnormally large accretion of starch in plant stems, and soluble carbon in the fruits”
Claim · model-written summary
Combining sucrose with urea delayed fruit ripening.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Treatment
- combining sucrose with ureae0
- Outcome
- Fruit ripeninge0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato Plants”
e0“combining sucrose with urea resulted in certain unfavourable responses Fruit ripening was delayed”
Claim · model-written summary
Fruit set was normal under combined spray.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Outcome
- fruit set was normale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato Plants”
e0“fruit set was normal”
Claim · model-written summary
A low proportion of fruits grew beyond early post-setting stage under combined spray.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Outcome
- proportione0
- Direction
- lowe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato Plants”
e0“the proportion was low of fruits that developed in size beyond the early post-setting stage”
Claim · model-written summary
Combining sucrose with urea reduced total fruit yield.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Treatment
- combining sucrose with ureae0
- Outcome
- total yield of fruite0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato Plants”
e0“combining sucrose with urea resulted in certain unfavourable responses Fruit ripening was delayed, fruit set was normal, but the proportion was low of fruits that developed in size beyond the early post-setting stage, and total yield of fruit was reduced”
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See all 253 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.