Abstract
The studies reported here show that some table Thompson Seedless grapes grown in the southern San Joaquin Valley are subject to a scarring problem and this scarring may occur to some degree even when no sprays are applied to the berries. When sprays are applied during bloom and after, the degree and severity of scarring tends to increase. That scarring could be found on berries when the calyptras persisted after bloom, suggests that they play some role in the scarring injury. While the scarring is similar in its superficial nature to that caused by thrips, the pattern is different. Since thrips were not eliminated from the tests, studies during 1972 will attempt to evaluate the relationship between adhering calyptras, spray timing and thrips feeding.
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Claims 5
Claim · model-written summary
Some Thompson Seedless grapes in the southern San Joaquin Valley were scarred without berry sprays.
Verbatim
e0“some table Thompson Seedless grapes grown in the southern San Joaquin Valley are subject to a scarring problem and this scarring may occur to some degree even when no sprays are applied to the berries.”
Claim · model-written summary
Sprays during or after bloom tended to increase the degree and severity of berry scarring.
- Taxon
- grapest0
- Treatment
- sprayse0
- Outcome
- degree and severity of scarringe0
- Direction
- increasee0
- Qualifier
- during bloom and aftere0
Not reportedComparator
Verbatim
e0“When sprays are applied during bloom and after, the degree and severity of scarring tends to increase.”
t0“grapes”
Claim · model-written summary
Berry scarring was observed where calyptras persisted after bloom.
Verbatim
e0“scarring could be found on berries when the calyptras persisted after bloom”
t0“grapes”
Claim · model-written summary
Authors suggested persistent calyptras contribute to berry scarring.
Verbatim
e0“That scarring could be found on berries when the calyptras persisted after bloom, suggests that they play some role in the scarring injury.”
t0“grapes”
Claim · model-written summary
Observed scarring superficially resembled thrips damage but had a different pattern.
ThripsOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“While the scarring is similar in its superficial nature to that caused by thrips, the pattern is different.”
t0“grapes”
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See all 56 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.