Abstract
Fruit CO2 exchange at the time of fruit setting period was evaluated on mature cv. 'Jonagold' apple trees after 4 days artificial shading with 90 % photosynthetic photon flux (PPF) reduction and after NAA 15 ppm and BA 50 ppm applied immediately after the end of shading. Light reduction which accelerated fruitlets abscission very quickly had a depressive effect on fruits CO2 dark respiration rate (Rd) and gross assimilation rate (Ag) 3 days after the end of shading. Similarly, reduced Rd and less negative net CO2 assimilation rate (A) was recorded on fruitlets 7 days after NAA and BA application what is explained as a diminished metabolism of fruits starting with abscission. The fruitlets from shaded trees, which did not tend to abscission any more, showed an enhanced Rd and more negative A on 7th or 8th day after the end of shading. Ethylene evolution from fruits 2nd and 7th day after NAA 15 ppm application was enhanced comparing to control fruits. BA 50 ppm enhanced ethylene evolution on 2nd day after spraying, however on 7th day the ethylene evolution was lower than in control fruits. Healthy, not to drop inclined fruitlets retained on trees 7 days after shading treatment, showed stronger fruit ethylene production.
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Claims 13
Claim · model-written summary
Shading accelerated fruitlet abscission.
- Taxon
- apple
Malus domesticat0 - Treatment
- Light reductione0
- Outcome
- fruitlets abscissione0
- Direction
- acceleratede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Light reduction which accelerated fruitlets abscission very quickly”
t0“apple fruitlets”
Claim · model-written summary
Light reduction depressed fruit dark respiration three days after shading.
- Taxon
- appleMalus domesticat0
- Treatment
- Light reductione0
- Outcome
- fruits CO2 dark respiration rate (Rd)e0
- Direction
- depressivee0
- Qualifier
- 3 days after the end of shadinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Light reduction which accelerated fruitlets abscission very quickly had a depressive effect on fruits CO2 dark respiration rate (Rd) and gross assimilation rate (Ag) 3 days after the end of shading.”
t0“apple fruitlets”
Claim · model-written summary
Light reduction depressed gross assimilation three days after shading.
- Taxon
- appleMalus domesticat0
- Treatment
- Light reductione0
- Outcome
- gross assimilation rate (Ag)e0
- Direction
- depressivee0
- Qualifier
- 3 days after the end of shadinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Light reduction which accelerated fruitlets abscission very quickly had a depressive effect on fruits CO2 dark respiration rate (Rd) and gross assimilation rate (Ag) 3 days after the end of shading.”
t0“apple fruitlets”
Claim · model-written summary
NAA application reduced fruitlet dark respiration seven days later.
- Taxon
- appleMalus domesticat0
- Treatment
- NAAe0
- Outcome
- Rde0
- Direction
- reducede0
- Qualifier
- 7 days after NAA and BA applicatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced Rd and less negative net CO2 assimilation rate (A) was recorded on fruitlets 7 days after NAA and BA application”
t0“apple fruitlets”
Claim · model-written summary
BA application reduced fruitlet dark respiration seven days later.
- Taxon
- appleMalus domesticat0
- Treatment
- BAe0
- Outcome
- Rde0
- Direction
- reducede0
- Qualifier
- 7 days after NAA and BA applicatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced Rd and less negative net CO2 assimilation rate (A) was recorded on fruitlets 7 days after NAA and BA application”
t0“apple fruitlets”
Claim · model-written summary
NAA produced less negative fruitlet net CO2 assimilation seven days later.
- Taxon
- appleMalus domesticat0
- Treatment
- NAAe0
- Outcome
- net CO2 assimilation rate (A)e0
- Direction
- less negativee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“less negative net CO2 assimilation rate (A) was recorded on fruitlets 7 days after NAA and BA application”
t0“apple fruitlets”
Claim · model-written summary
BA produced less negative fruitlet net CO2 assimilation seven days later.
- Taxon
- appleMalus domesticat0
- Treatment
- BAe0
- Outcome
- net CO2 assimilation rate (A)e0
- Direction
- less negativee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“less negative net CO2 assimilation rate (A) was recorded on fruitlets 7 days after NAA and BA application”
t0“apple fruitlets”
Claim · model-written summary
Fruitlets retained after shading showed enhanced dark respiration on days seven or eight.
- Taxon
- appleMalus domesticat0
- Outcome
- Rde0
- Direction
- enhancede0
- Qualifier
- 7th or 8th day after the end of shadinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The fruitlets from shaded trees, which did not tend to abscission any more, showed an enhanced Rd and more negative A on 7th or 8th day after the end of shading.”
t0“apple fruitlets”
Claim · model-written summary
Fruitlets retained after shading showed more negative net assimilation on days seven or eight.
- Taxon
- appleMalus domesticat0
- Outcome
- Ae0
- Direction
- more negativee0
- Qualifier
- 7th or 8th day after the end of shadinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The fruitlets from shaded trees, which did not tend to abscission any more, showed an enhanced Rd and more negative A on 7th or 8th day after the end of shading.”
t0“apple fruitlets”
Claim · model-written summary
NAA enhanced fruit ethylene evolution on days two and seven versus controls.
- Taxon
- appleMalus domesticat0
- Treatment
- NAA 15 ppme0
- Outcome
- Ethylene evolution from fruitse0
- Direction
- enhancede0
- Qualifier
- 2nd and 7th daye0
- Comparator
- control fruitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ethylene evolution from fruits 2nd and 7th day after NAA 15 ppm application was enhanced comparing to control fruits.”
t0“apple fruitlets”
Claim · model-written summary
BA enhanced fruit ethylene evolution on day two.
- Taxon
- appleMalus domesticat0
- Treatment
- BA 50 ppme0
- Outcome
- ethylene evolutione0
- Direction
- enhancede0
- Qualifier
- 2nd daye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BA 50 ppm enhanced ethylene evolution on 2nd day after spraying”
t0“apple fruitlets”
Claim · model-written summary
BA reduced fruit ethylene evolution on day seven versus controls.
- Taxon
- appleMalus domesticat0
- Outcome
- ethylene evolutione0
- Direction
- lowere0
- Qualifier
- 7th daye0
- Comparator
- control fruitse0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on 7th day the ethylene evolution was lower than in control fruits”
t0“apple fruitlets”
Claim · model-written summary
Healthy retained fruitlets showed stronger ethylene production seven days after shading.
- Taxon
- appleMalus domesticat0
- Outcome
- fruit ethylene productione0
- Direction
- strongere0
- Qualifier
- 7 days after shading treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Healthy, not to drop inclined fruitlets retained on trees 7 days after shading treatment, showed stronger fruit ethylene production.”
t0“apple fruitlets”
The same questions in other papers
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1 in the opposite direction
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7 papers more in this group
See all 11 papers →light · nutrient: content · Malus domestica (apple)Results agree
2 papers in the same direction as this paper
- negative
- negative
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.