Abstract
A factorial arrangement of four replications of ethephon (0, 25, 50, 100, or 150 mg·liter -1 ) and GA 3 (0, 25, or 50 mg·liter -1 ) treatments in a Randomized Complete Block Design were applied to `Redhaven' peach trees in mid-September. Each tree received the same treatment in 1987-1990. Development of flower buds (after endodormancy completion) was significantly delayed by GA 3 and ethephon. The date of 50% bloom was significantly delayed by GA 3 (approximately 1 day) and by ethephon (4.7 days with 150 mg·liter -1 treatment). Increasing the concentration of each chemical resulted in more delay of bloom. There was no interaction of the effects of the two chemicals on bloom date. Application of 50 mg·liter -1 GA 3 plus 150 mg·liter -1 ethephon caused the greatest bloom delay (6.5 days compared to untreated trees). Gummosis on scaffolds was evident in the fall and following spring on trees treated with the 2 highest rates of ethephon. During the summer and following fall, little gummosis was evident. By September 1991, evidence of gummosis was insignificant and no tree mortality occurred.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 11
Claim · model-written summary
GA3 delayed flower bud development after endodormancy.
- Taxon
- peach trees
Prunus persicat0 - Treatment
- GA 3e0
- Outcome
- Development of flower budse0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Development of flower buds (after endodormancy completion) was significantly delayed by GA 3 and ethephon”
t0“peach trees”
Claim · model-written summary
Ethephon delayed flower bud development after endodormancy.
- Taxon
- peach treesPrunus persicat0
- Treatment
- ethephone0
- Outcome
- Development of flower budse0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Development of flower buds (after endodormancy completion) was significantly delayed by GA 3 and ethephon”
t0“peach trees”
Claim · model-written summary
GA3 significantly delayed 50% bloom by about one day.
- Taxon
- peach treesPrunus persicat0
- Treatment
- GA 3e0
- Outcome
- date of 50% bloome0
- Direction
- delayede0
- Value
- approximately 1 daye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The date of 50% bloom was significantly delayed by GA 3 (approximately 1 day)”
t0“peach trees”
Claim · model-written summary
Ethephon at 150 mg per liter delayed bloom by 4.7 days.
- Taxon
- peach treesPrunus persicat0
- Treatment
- 150 mg·liter -1 treatmente0
- Outcome
- bloome0
- Direction
- delayede0
- Value
- 4.7 dayse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The date of 50% bloom was significantly delayed by GA 3 (approximately 1 day) and by ethephon (4.7 days with 150 mg·liter -1 treatment)”
t0“peach trees”
Claim · model-written summary
Higher concentration of each chemical caused greater bloom delay.
- Taxon
- peach treesPrunus persicat0
- Treatment
- each chemicale0
- Outcome
- delay of bloome0
- Direction
- moree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing the concentration of each chemical resulted in more delay of bloom”
t0“peach trees”
Claim · model-written summary
The two chemicals showed no interaction for bloom date.
- Taxon
- peach treesPrunus persicat0
- Outcome
- no interaction of the effects of the two chemicals on bloom datee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no interaction of the effects of the two chemicals on bloom date”
t0“peach trees”
Claim · model-written summary
The combined GA3 and ethephon treatment caused the greatest bloom delay of 6.5 days.
- Taxon
- peach treesPrunus persicat0
- Treatment
- 50 mg·liter -1 GA 3 plus 150 mg·liter -1 ethephone0
- Outcome
- bloom delaye0
- Direction
- greateste0
- Value
- 6.5 dayse0
- Comparator
- untreated treese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 50 mg·liter -1 GA 3 plus 150 mg·liter -1 ethephon caused the greatest bloom delay (6.5 days compared to untreated trees)”
t0“peach trees”
Claim · model-written summary
The two highest ethephon rates produced scaffold gummosis in fall and spring.
- Taxon
- peach treesPrunus persicat0
- Treatment
- 2 highest rates of ethephone0
- Outcome
- Gummosis on scaffoldse0
- Qualifier
- fall and following springe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gummosis on scaffolds was evident in the fall and following spring on trees treated with the 2 highest rates of ethephon”
t0“peach trees”
Claim · model-written summary
Little gummosis was evident during summer and following fall.
- Taxon
- peach treesPrunus persicat0
- Outcome
- little gummosise0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the summer and following fall, little gummosis was evident”
t0“peach trees”
Claim · model-written summary
By September 1991 gummosis evidence was insignificant.
- Taxon
- peach treesPrunus persicat0
- Outcome
- evidence of gummosise0
- Direction
- insignificante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“By September 1991, evidence of gummosis was insignificant”
t0“peach trees”
Claim · model-written summary
No tree mortality occurred.
- Taxon
- peach treesPrunus persicat0
- Outcome
- no tree mortalitye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no tree mortality occurred”
t0“peach trees”
The same questions in other papers
(2-chloroethyl)phosphonic acid · growth · Prunus persica (peach)Positive and negative results
1 paper in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
2 papers more in this group
See all 6 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.