Abstract
1. This paper reports the continuation of the studies begun in 1951 on the influence of high temperature and high light intensity on the vegetative and fruiting responses of tomatoes. 2. Marglobe and Rutgers plants transplanted prior to the period of high temperature-high light intensity fruited normally only before the occurrence of unfavorable temperature and light conditions, while those transplanted directly into the conditions of high temperature-high light intensity grew slowly but did not fruit. 3. Marglobe and Rutgers plants in the field did not respond to sprays of parachlorophenoxyacetic acid (CPA) during the unfavorable light-temperature period, whereas summer-setting varieties and selections cluster-sprayed with CPA nearly doubled their fruit production. 4. Shaded Marglobe and summer-setting varieties had a significantly greater stem height than unshaded plants. Shading or defoliation alleviated light inhibition of the growth rate. 5. Dormancy of fruits of the S-616 variety can be attributed primarily to high light conditions. This dormancy can be partially reversed by shading or CPA-sprays. 6. Curtailed growth and fruit-set during the high temperature-high light period cannot be attributed to impaired synthesis of carbohydrates. Adequate carbohydrates were found in both fruiting and non-fruiting plants. 7. The ability to translocate carbohydrates was demonstrated by transferring plants from the conditions of high light intensity to the dark. Therefore, failure of conducting tissue to transport carbohydrates was not the cause of restriction in growth and fruiting. 8. The tomato plant possesses an indoleacetic acid (IAA) inactivating mechanism; activity was positively correlated with tissue age. An IAA-oxidase inhibitor and an accelerator, both water-soluble and thermostable, were present in autoclaved filtrates from the different tissue fractions.
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Claims 18
Claim · model-written summary
Marglobe and Rutgers plants transplanted before the high temperature-high light period fruited normally.
- Taxon
- Tomatoes
Solanum lycopersicumt0 - Material
- Marglobe and Rutgerse1
- Treatment
- transplanted prior to the period of high temperature-high light intensitye1
- Outcome
- fruited normallye1
- Comparator
- transplanted directly into the conditions of high temperature-high light intensitye1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Marglobe and Rutgers plants transplanted prior to the period of high temperature-high light intensity fruited normally only before the occurrence of unfavorable temperature and light conditions, while those transplanted directly into the conditions of high temperature-high light intensity grew slowly but did not fruit”
t0“Responses of Tomatoes”
Claim · model-written summary
Marglobe and Rutgers plants transplanted directly into high temperature-high light grew slowly.
- Taxon
- TomatoesSolanum lycopersicumt0
- Material
- Marglobe and Rutgerse1
- Treatment
- transplanted directly into the conditions of high temperature-high light intensitye1
- Outcome
- grew slowlye1
- Direction
- slowlye1
- Comparator
- transplanted prior to the period of high temperature-high light intensitye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Marglobe and Rutgers plants transplanted prior to the period of high temperature-high light intensity fruited normally only before the occurrence of unfavorable temperature and light conditions, while those transplanted directly into the conditions of high temperature-high light intensity grew slowly but did not fruit”
t0“Responses of Tomatoes”
Claim · model-written summary
Marglobe and Rutgers plants transplanted directly into high temperature-high light did not fruit.
- Taxon
- TomatoesSolanum lycopersicumt0
- Material
- Marglobe and Rutgerse1
- Treatment
- transplanted directly into the conditions of high temperature-high light intensitye1
- Outcome
- did not fruite1
- Comparator
- transplanted prior to the period of high temperature-high light intensitye1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Marglobe and Rutgers plants transplanted prior to the period of high temperature-high light intensity fruited normally only before the occurrence of unfavorable temperature and light conditions, while those transplanted directly into the conditions of high temperature-high light intensity grew slowly but did not fruit”
t0“Responses of Tomatoes”
Claim · model-written summary
Field-grown Marglobe and Rutgers plants did not respond to CPA sprays during the unfavorable light-temperature period.
- Taxon
- TomatoesSolanum lycopersicumt0
- Material
- Marglobe and Rutgerse2
- Treatment
- sprays of parachlorophenoxyacetic acid (CPA)e2
- Outcome
- respond to sprayse2
- Setting
- in the fielde2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Marglobe and Rutgers plants in the field did not respond to sprays of parachlorophenoxyacetic acid (CPA) during the unfavorable light-temperature period”
t0“Responses of Tomatoes”
Claim · model-written summary
Summer-setting varieties and selections cluster-sprayed with CPA nearly doubled fruit production.
- Taxon
- TomatoesSolanum lycopersicumt0
- Material
- summer-setting varieties and selectionse3
- Treatment
- cluster-sprayed with CPAe3
- Outcome
- fruit productione3
- Direction
- nearly doublede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“summer-setting varieties and selections cluster-sprayed with CPA nearly doubled their fruit production”
t0“Responses of Tomatoes”
Claim · model-written summary
Shaded Marglobe and summer-setting varieties had significantly greater stem height than unshaded plants.
- Taxon
- TomatoesSolanum lycopersicumt0
- Material
- Marglobe and summer-setting varietiese4
- Treatment
- Shadede4
- Outcome
- stem heighte4
- Direction
- greatere4
- Comparator
- unshaded plantse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Shaded Marglobe and summer-setting varieties had a significantly greater stem height than unshaded plants”
t0“Responses of Tomatoes”
Claim · model-written summary
Shading alleviated light inhibition of the growth rate.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- Shadinge5
- Outcome
- growth ratee5
- Direction
- alleviatede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Shading or defoliation alleviated light inhibition of the growth rate”
t0“Responses of Tomatoes”
Claim · model-written summary
Defoliation alleviated light inhibition of the growth rate.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- defoliatione5
- Outcome
- growth ratee5
- Direction
- alleviatede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Shading or defoliation alleviated light inhibition of the growth rate”
t0“Responses of Tomatoes”
Claim · model-written summary
Dormancy of fruits of the S-616 variety is attributed primarily to high light conditions.
- Taxon
- TomatoesSolanum lycopersicumt0
- Material
- S-616e6
- Organ / stage
- fruitse6
- Treatment
- high light conditionse6
- Outcome
- Dormancy of fruitse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Dormancy of fruits of the S-616 variety can be attributed primarily to high light conditions”
t0“Responses of Tomatoes”
Claim · model-written summary
Dormancy can be partially reversed by shading.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- shadinge7
- Outcome
- dormancye7
- Direction
- partially reversede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“This dormancy can be partially reversed by shading or CPA-sprays”
t0“Responses of Tomatoes”
Claim · model-written summary
Dormancy can be partially reversed by CPA sprays.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- CPA-sprayse7
- Outcome
- dormancye7
- Direction
- partially reversede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“This dormancy can be partially reversed by shading or CPA-sprays”
t0“Responses of Tomatoes”
Claim · model-written summary
Both fruiting and non-fruiting plants had adequate carbohydrates.
- Taxon
- TomatoesSolanum lycopersicumt0
- Outcome
- carbohydratese0
- Qualifier
- both fruiting and non-fruiting plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Adequate carbohydrates were found in both fruiting and non-fruiting plants”
t0“Responses of Tomatoes”
Claim · model-written summary
Curtailed growth and fruit-set under high temperature-high light cannot be attributed to impaired carbohydrate synthesis.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- high temperature-high light periode1
- Outcome
- Curtailed growth and fruit-sete1
- Qualifier
- cannot be attributed to impaired synthesis of carbohydratese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Curtailed growth and fruit-set during the high temperature-high light period cannot be attributed to impaired synthesis of carbohydrates”
t0“Responses of Tomatoes”
Claim · model-written summary
Plants transferred from high light to dark demonstrated the ability to translocate carbohydrates.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- transferring plants from the conditions of high light intensity to the darke2
- Outcome
- ability to translocate carbohydratese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“The ability to translocate carbohydrates was demonstrated by transferring plants from the conditions of high light intensity to the dark”
t0“Responses of Tomatoes”
Claim · model-written summary
Failure of conducting tissue to transport carbohydrates was not the cause of restricted growth and fruiting.
- Taxon
- TomatoesSolanum lycopersicumt0
- Outcome
- restriction in growth and fruitinge3
- Qualifier
- failure of conducting tissue to transport carbohydratese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Therefore, failure of conducting tissue to transport carbohydrates was not the cause of restriction in growth and fruiting”
t0“Responses of Tomatoes”
Claim · model-written summary
The tomato plant has an IAA inactivating mechanism.
- Taxon
- tomato plantSolanum lycopersicume4
- Compound
- indoleacetic acid (IAA)e4
- Outcome
- inactivating mechanisme4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The tomato plant possesses an indoleacetic acid (IAA) inactivating mechanism”
t0“Responses of Tomatoes”
Claim · model-written summary
IAA inactivating activity was positively correlated with tissue age.
- Taxon
- tomato plantSolanum lycopersicume5
- Organ / stage
- tissue agee5
- Outcome
- activitye5
- Direction
- positively correlatede5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“The tomato plant possesses an indoleacetic acid (IAA) inactivating mechanism; activity was positively correlated with tissue age”
t0“Responses of Tomatoes”
Claim · model-written summary
An IAA-oxidase inhibitor and an accelerator, both water-soluble and thermostable, were present in autoclaved tissue filtrates.
- Taxon
- TomatoesSolanum lycopersicumt0
- Organ / stage
- different tissue fractionse6
- Outcome
- IAA-oxidase inhibitor and an acceleratore6
- Qualifier
- both water-soluble and thermostablee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“An IAA-oxidase inhibitor and an accelerator, both water-soluble and thermostable, were present in autoclaved filtrates from the different tissue fractions”
t0“Responses of Tomatoes”
The same questions in other papers
shade · growth · Solanum lycopersicum (tomato)Results differ
20 papers in the same direction as this paper · 6 in the opposite direction
- negative
- negative
- negative
23 papers more in this group
See all 27 papers →pruning · growth · Solanum lycopersicum (tomato)Results differ
29 papers in the same direction as this paper · 14 in the opposite direction
- negative
- no effect
- no effect
40 papers more in this group
See all 44 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.