Abstract
Earlier work has shown that gibberellin treatment of individual flowers or small fruits of many citrus varieties gave increased fruit set. The Washington Navel orange was selected for field scale experiments, entire trees being sprayed to determine the effect on fruit set. Phytotoxic responses of twig dieback and leaf drop resulted. Fruit set was not increased by overall gibberellin sprays. Often a significant reduction in yield resulted. Fruit size and quality responses are related to gibberellin concentration and date of application. The difference between response to applications on individual flowers or fruits and response to spraying the entire tree suggests the possible involvement of water relations and also indicates an influence of the gradient flow of gibberellin between the fruit and branch. Certain similar and contrasting responses of citrus to gibberellin sprays and some other plant growth regulators are noted.
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Claims 6
Claim · model-written summary
Overall gibberellin sprays did not increase fruit set in Washington Navel orange.
- Taxon
- Washington Navel orange
Citrus sinensist0 - Treatment
- overall gibberellin sprayse1
- Outcome
- Fruit sete1
- Direction
- not increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Washington Navel orange”
e1“Fruit set was not increased by overall gibberellin sprays. Often a significant reduction in yield resulted”
Claim · model-written summary
Overall gibberellin sprays often caused a significant reduction in yield of Washington Navel orange.
- Taxon
- Washington Navel orangeCitrus sinensist0
- Treatment
- overall gibberellin sprayse1
- Outcome
- yielde1
- Direction
- reductione1
- Qualifier
- Oftene1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Washington Navel orange”
e1“Fruit set was not increased by overall gibberellin sprays. Often a significant reduction in yield resulted”
Claim · model-written summary
Spraying entire trees with gibberellin produced phytotoxic twig dieback and leaf drop in Washington Navel orange.
- Taxon
- Washington Navel orangeCitrus sinensist0
- Treatment
- entire trees being sprayede0
- Outcome
- twig dieback and leaf drope2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Washington Navel orange”
e0“entire trees being sprayed to determine the effect on fruit set”
e2“Phytotoxic responses of twig dieback and leaf drop resulted”
Claim · model-written summary
Fruit size and quality responses of Washington Navel orange are related to gibberellin concentration and date of application.
- Taxon
- Washington Navel orangeCitrus sinensist0
- Treatment
- gibberellin concentration and date of applicatione3
- Outcome
- Fruit size and quality responsese3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Washington Navel orange”
e3“Fruit size and quality responses are related to gibberellin concentration and date of application”
Claim · model-written summary
The difference between individual-flower and whole-tree gibberellin responses suggests a possible role of water relations and gradient flow of gibberellin between fruit and branch.
- Taxon
- Washington Navel orangeCitrus sinensist0
- Compound
- gibberelline5
- Outcome
- difference between response to applications on individual flowers or fruits and response to spraying the entire treee4
- Qualifier
- possible involvement of water relationse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Washington Navel orange”
e4“The difference between response to applications on individual flowers or fruits and response to spraying the entire tree suggests the possible involvement of water relations”
e5“indicates an influence of the gradient flow of gibberellin between the fruit and branch”
Claim · model-written summary
Citrus responses to gibberellin sprays were similar and contrasting to those of some other plant growth regulators.
- Treatment
- gibberellin sprayse6
- Outcome
- responses of citrus to gibberellin sprayse6
- Comparator
- some other plant growth regulatorse6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Washington Navel orange”
e6“Certain similar and contrasting responses of citrus to gibberellin sprays and some other plant growth regulators are noted”
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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.