Abstract
Ethrel sprays were applied at 50 or 100 ppm at approximately 40%, 70% leaf fall (10/16/89 or 10/24/89, respectively) or at both times on `Redhaven' and `Allgold' peaches. Bud hardiness was determined biweekly by differential thermal analysis (DTA). Stage and percentage of bloom open during the bloom period were subjectively estimated. Spraying trees with 100ppm Ethrel at 50% leaf fall significantly increased bud hardiness at mid-winter compared to other treatments. After a mid-winter freeze (-21.7 C on 12/21/89), there was no significant difference between % bud survival of any treatments. But, trees treated with 50 or 100ppm Ethrel had 10-20% better bud survival than other treatments. Buds of the 2 cultivars had statistically similar hardiness although DTA analysis indicated that Redhaven had a .5-.8 C lower freezing point than Allgold in mid winter. This trend was reversed close to bloom with Allgold having .7 C lower freezing point than Redhaven. The time of full bloom was significantly delayed by treating trees with 100ppm at 40% leaf fall or 50ppm at both 40 and 70% leaf fall the previous autumn.
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 7
Claim · model-written summary
A 100 ppm Ethrel spray at 50% leaf fall significantly increased midwinter bud hardiness.
Verbatim
e0“Spraying trees with 100ppm Ethrel at 50% leaf fall significantly increased bud hardiness at mid-winter compared to other treatments.”
t0“PEACHES”
Claim · model-written summary
After the midwinter freeze, bud survival did not differ significantly across treatments.
Verbatim
e0“After a mid-winter freeze (-21.7 C on 12/21/89), there was no significant difference between % bud survival of any treatments.”
t0“PEACHES”
Claim · model-written summary
Trees treated with 50 or 100 ppm Ethrel had 10–20% better bud survival.
Verbatim
e0“trees treated with 50 or 100ppm Ethrel had 10-20% better bud survival than other treatments.”
t0“PEACHES”
Claim · model-written summary
Bud hardiness was statistically similar between the two cultivars.
Verbatim
e0“Buds of the 2 cultivars had statistically similar hardiness”
t0“PEACHES”
Claim · model-written summary
Redhaven had a 0.5–0.8 C lower midwinter freezing point than Allgold.
Verbatim
e0“Redhaven had a .5-.8 C lower freezing point than Allgold in mid winter.”
t0“PEACHES”
Claim · model-written summary
Near bloom, Allgold had a 0.7 C lower freezing point than Redhaven.
Verbatim
e0“Allgold having .7 C lower freezing point than Redhaven.”
t0“PEACHES”
Claim · model-written summary
Two autumn Ethrel schedules significantly delayed full bloom.
- Taxon
- PEACHESt0
- Treatment
- 100ppm at 40% leaf fall or 50ppm at both 40 and 70% leaf falle0
- Outcome
- time of full bloome0
- Direction
- delayede0
Not reportedComparator
Verbatim
e0“The time of full bloom was significantly delayed by treating trees with 100ppm at 40% leaf fall or 50ppm at both 40 and 70% leaf fall the previous autumn.”
t0“PEACHES”
The same questions in other papers
(2-chloroethyl)phosphonic acid · survival · Prunus persica (peach)Results differ
2 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
(2-chloroethyl)phosphonic acid · tolerance: abiotic · Prunus persica (peach)Results agree
1 paper in the same direction as this paper
- positive
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.