Abstract
Abstract Three levels of NAA (0, 10,000, and 20,000 ppm) and paclobutrazol (PP333; 0, 250, 500 ppm) were applied in latex paint to suckered vine trunks of ‘Okanagan Riesling’ ( Vitis spp.). NAA reduced suckers/vine and percentage of sucker regrowth in each of three seasons. Cluster weight, berries/cluster, and berry weight were increased with NAA in each season, whereas vine size, °Brix, and total acidity (TA) showed a similar trend 1 year following application and thereafter. PP333 reduced sucker number and regrowth, but not as effectively as NAA, and its effects were shorter-lived. No yield components were influenced by PP333 except berry weight, which varied linearly in 1984 and 1986 and quadratically with concentration in 1985. PP333 increased °Brix and TA linearly 1 year following application. Both chemicals tended to reduce pH in 1984 and 1985, but NAA increased pH in 1986 relative to concentration. Chemical names used: 1-naphthaleneacetic acid (NAA); β-1[(4-chorophenyl)methyl]-α-(1,1-dimethylethyl)-1 H -1,2,4-triazole-1-ethanol (paclobutrazol).
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Claims 9
Claim · model-written summary
NAA reduced suckers per vine and sucker regrowth across three seasons.
- Treatment
- NAAe0
- Outcome
- suckers/vine and percentage of sucker regrowthe0
- Direction
- reducede0
- Qualifier
- each of three seasonse0
VitisNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NAA reduced suckers/vine and percentage of sucker regrowth in each of three seasons.”
t0“‘Okanagan Riesling’ Grapevines”
Claim · model-written summary
NAA increased cluster weight, berries per cluster, and berry weight in each season.
- Treatment
- NAAe0
- Outcome
- Cluster weight, berries/cluster, and berry weighte0
- Direction
- increasede0
- Qualifier
- each seasone0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cluster weight, berries/cluster, and berry weight were increased with NAA in each season”
t0“‘Okanagan Riesling’ Grapevines”
Claim · model-written summary
NAA increased vine size, °Brix, and total acidity beginning one year after application.
- Treatment
- NAAe1
- Outcome
- vine size, °Brix, and total acidity (TA)e0
- Qualifier
- 1 year following application and thereaftere0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“vine size, °Brix, and total acidity (TA) showed a similar trend 1 year following application and thereafter”
t0“‘Okanagan Riesling’ Grapevines”
e1“NAA reduced suckers/vine and percentage of sucker regrowth in each of three seasons.”
Claim · model-written summary
PP333 reduced sucker number and regrowth less effectively and for less time than NAA.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PP333 reduced sucker number and regrowth, but not as effectively as NAA, and its effects were shorter-lived.”
t0“‘Okanagan Riesling’ Grapevines”
Claim · model-written summary
PP333 affected berry weight with linear responses in 1984 and 1986 and a quadratic response in 1985.
- Treatment
- PP333e0
- Outcome
- berry weighte0
- Qualifier
- linearly in 1984 and 1986 and quadratically with concentration in 1985e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No yield components were influenced by PP333 except berry weight, which varied linearly in 1984 and 1986 and quadratically with concentration in 1985.”
t0“‘Okanagan Riesling’ Grapevines”
Claim · model-written summary
PP333 did not influence other yield components.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No yield components were influenced by PP333 except berry weight”
t0“‘Okanagan Riesling’ Grapevines”
Claim · model-written summary
PP333 increased °Brix and TA linearly one year after application.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PP333 increased °Brix and TA linearly 1 year following application.”
t0“‘Okanagan Riesling’ Grapevines”
Claim · model-written summary
Both chemicals tended to reduce pH in 1984 and 1985.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both chemicals tended to reduce pH in 1984 and 1985”
t0“‘Okanagan Riesling’ Grapevines”
Claim · model-written summary
NAA increased pH with concentration in 1986.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NAA increased pH in 1986 relative to concentration”
t0“‘Okanagan Riesling’ Grapevines”
The same questions in other papers
1-naphthaleneacetic acid · growth · VitisResults differ
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- negative
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- no effect
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- positive
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See all 7 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.