Abstract
Growth-rates of receptacles developing after pollination were compared with those of a similar set developing parthenocarpically after treatment with 2-naphthoxyacetic acid (2-NoA). The latter grew slightly more rapidly during the first 10 days, and entered the final ripening phase at the same time as the pollinated receptacles, but in the intervening period the growth-rate of parthenocarpic receptacles was much reduced.Applications of 2-NoA and gibberellic acid separately and in combination were compared at anthesis, and the effects of supplementary treatments 10 days later were investigated. Either chemical was capable of stimulating initial parthenocarpic development and maturation of the ripe fruit, but neither one alone maintained rapid growth throughout the second phase of fruit development. Combinations of 2-NoA and gibberellic acid at high levels, and 2-NoA and a mixture of gibberellins A4 and A7 at lower levels, applied either together at anthesis, or sequentially during development effectively maintained growth rates throughout the whole developmental period.Rates of fruit maturation varied according to the chemical stimulus inducing parthenocarpy. Treatment with gibberellins resulted in early maturity and relatively small fruits. Treatment with 2-NoA led to a longer period of fruit development and relatively larger fruits at maturity in spite of a low rate of growth throughout the second growth phase.
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Claims 10
Claim · model-written summary
Parthenocarpic receptacles treated with 2-NoA grew slightly more rapidly than pollinated receptacles during the first 10 days.
- Taxon
- Strawberry
_single2.jpg?width=60)
Fragaria ×ananassat0 - Organ / stage
- receptaclese0
- Treatment
- 2-naphthoxyacetic acid (2-NoA)e0
- Outcome
- Growth-ratese0
- Direction
- more rapidlye1
- Comparator
- receptacles developing after pollinatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
t0“Development of the Strawberry Fruit”
e0“Growth-rates of receptacles developing after pollination were compared with those of a similar set developing parthenocarpically after treatment with 2-naphthoxyacetic acid (2-NoA)”
e1“The latter grew slightly more rapidly during the first 10 days”
Claim · model-written summary
Growth rate of parthenocarpic receptacles was much reduced in the intervening period.
- Taxon
- StrawberryFragaria ×ananassat0
- Organ / stage
- parthenocarpic receptaclese2
- Treatment
- 2-naphthoxyacetic acid (2-NoA)e0
- Outcome
- growth-ratee2
- Direction
- much reducede2
- Qualifier
- in the intervening periode2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Development of the Strawberry Fruit”
e0“Growth-rates of receptacles developing after pollination were compared with those of a similar set developing parthenocarpically after treatment with 2-naphthoxyacetic acid (2-NoA)”
e2“but in the intervening period the growth-rate of parthenocarpic receptacles was much reduced”
Claim · model-written summary
Applying 2-NoA or gibberellic acid separately stimulated initial parthenocarpic development and maturation of the ripe fruit.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- Applications of 2-NoA and gibberellic acid separatelye4
- Outcome
- initial parthenocarpic development and maturation of the ripe fruite3
- Direction
- stimulatinge3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Development of the Strawberry Fruit”
e3“Either chemical was capable of stimulating initial parthenocarpic development and maturation of the ripe fruit, but neither one alone maintained rapid growth throughout the second phase of fruit development”
e4“Applications of 2-NoA and gibberellic acid separately and in combination were compared at anthesis”
Claim · model-written summary
Neither 2-NoA nor gibberellic acid alone maintained rapid growth throughout the second phase of strawberry fruit development.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- Applications of 2-NoA and gibberellic acid separatelye4
- Outcome
- rapid growthe3
- Direction
- neither one alone maintainede3
- Qualifier
- throughout the second phase of fruit developmente3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Development of the Strawberry Fruit”
e3“Either chemical was capable of stimulating initial parthenocarpic development and maturation of the ripe fruit, but neither one alone maintained rapid growth throughout the second phase of fruit development”
e4“Applications of 2-NoA and gibberellic acid separately and in combination were compared at anthesis”
Claim · model-written summary
Combining 2-NoA with gibberellic acid at high levels effectively maintained growth rates throughout strawberry fruit development.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- Combinations of 2-NoA and gibberellic acid at high levelse5
- Outcome
- growth ratese5
- Direction
- effectively maintainede5
- Qualifier
- throughout the whole developmental periode5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Development of the Strawberry Fruit”
e5“Combinations of 2-NoA and gibberellic acid at high levels, and 2-NoA and a mixture of gibberellins A4 and A7 at lower levels, applied either together at anthesis, or sequentially during development effectively maintained growth rates throughout the whole developmental period”
Claim · model-written summary
2-NoA with a mixture of gibberellins A4 and A7 at lower levels effectively maintained strawberry fruit growth rates.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- 2-NoA and a mixture of gibberellins A4 and A7 at lower levelse5
- Outcome
- growth ratese5
- Direction
- effectively maintainede5
- Qualifier
- applied either together at anthesis, or sequentially during developmente5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Development of the Strawberry Fruit”
e5“Combinations of 2-NoA and gibberellic acid at high levels, and 2-NoA and a mixture of gibberellins A4 and A7 at lower levels, applied either together at anthesis, or sequentially during development effectively maintained growth rates throughout the whole developmental period”
Claim · model-written summary
Treatment with gibberellins resulted in early fruit maturity.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- Treatment with gibberellinse7
- Outcome
- maturitye7
- Direction
- earlye7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Development of the Strawberry Fruit”
e7“Treatment with gibberellins resulted in early maturity and relatively small fruits”
Claim · model-written summary
Treatment with gibberellins gave relatively small strawberry fruits.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- Treatment with gibberellinse7
- Outcome
- fruitse7
- Direction
- relatively smalle7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Development of the Strawberry Fruit”
e7“Treatment with gibberellins resulted in early maturity and relatively small fruits”
Claim · model-written summary
Treatment with 2-NoA gave a longer period of strawberry fruit development.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- Treatment with 2-NoAe7
- Outcome
- period of fruit developmente7
- Direction
- longere7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Development of the Strawberry Fruit”
e7“Treatment with 2-NoA led to a longer period of fruit development and relatively larger fruits at maturity in spite of a low rate of growth throughout the second growth phase”
Claim · model-written summary
Treatment with 2-NoA gave relatively larger fruits at maturity despite a low rate of growth in the second growth phase.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- Treatment with 2-NoAe7
- Outcome
- fruits at maturitye7
- Direction
- relatively largere7
- Qualifier
- in spite of a low rate of growth throughout the second growth phasee7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Development of the Strawberry Fruit”
e7“Treatment with 2-NoA led to a longer period of fruit development and relatively larger fruits at maturity in spite of a low rate of growth throughout the second growth phase”
The same questions in other papers
Gibberellic acid · growth · Fragaria x ananassa (strawberry)Results differ
32 papers in the same direction as this paper · 4 in the opposite direction
- no effect
- no effect
- negative
33 papers more in this group
See all 37 papers →2-naphthyloxyacetic acid · growth · Fragaria x ananassa (strawberry)Positive and negative results
1 in the opposite direction
- positive
class · growth · Fragaria x ananassa (strawberry)Positive and negative results
24 papers in the same direction as this paper · 4 in the opposite direction
- no effect
- no effect
- no effect
25 papers more in this group
See all 29 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.