Abstract
Applying plant growth regulators to economically significant turf on golf courses to control height, reduce frequency of mowing operations, and enhance playing surface consistency is a common industry practice. This study compared Anuew (prohexadione-calcium), Primo Maxx (trinexapac-ethyl) and experimental NAI-20026 (trinexepac-ethyl) on turfgrass growth and quality parameters on a greens-height stand of creeping bentgrass. On many occasions throughout the experiment, PGR treatments significantly reduced turfgrass growth when compared to the untreated control and improved turfgrass quality and colour ratings. Anuew 5.6 had significantly higher NDVI readings than the untreated control on three occasions throughout the experiment. NufTE (experimental NAI-20026) performed similarly to Primo on both the 300 GDD and 4-week application schedules and often were ranked the same for many parameters throughout the experiment. No stress symptoms (yellowing, etiolation) were observed on the putting green turf in response to PGR application during hot/dry weather at any point during the experiment.
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Claims 5
Claim · model-written summary
PGR treatments reduced turfgrass growth.
- Taxon
- creeping bentgrass
Agrostis stoloniferae1 - Treatment
- PGR treatmentse0
- Outcome
- turfgrass growthe0
- Direction
- reducede0
- Comparator
- untreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PGR treatments significantly reduced turfgrass growth when compared to the untreated control”
e1“creeping bentgrass”
Claim · model-written summary
PGR treatments improved turf quality and colour ratings.
- Taxon
- creeping bentgrassAgrostis stoloniferae1
- Treatment
- PGR treatmentse0
- Outcome
- turfgrass quality and colour ratingse0
- Direction
- improvede0
- Comparator
- untreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PGR treatments significantly reduced turfgrass growth when compared to the untreated control and improved turfgrass quality and colour ratings”
e1“creeping bentgrass”
Claim · model-written summary
Anuew 5.6 had higher NDVI on three occasions.
- Taxon
- creeping bentgrassAgrostis stoloniferae1
- Treatment
- Anuew 5.6e0
- Outcome
- NDVI readingse0
- Direction
- highere0
- Qualifier
- on three occasions throughout the experimente0
- Comparator
- untreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Anuew 5.6 had significantly higher NDVI readings than the untreated control on three occasions throughout the experiment”
e1“creeping bentgrass”
Claim · model-written summary
NufTE performed similarly to Primo across schedules.
- Taxon
- creeping bentgrassAgrostis stoloniferae1
- Treatment
- NufTE (experimental NAI-20026)e0
- Outcome
- performed similarlye0
- Direction
- similarlye0
- Qualifier
- on both the 300 GDD and 4-week application schedulese0
- Comparator
- Primoe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NufTE (experimental NAI-20026) performed similarly to Primo on both the 300 GDD and 4-week application schedules and often were ranked the same for many parameters throughout the experiment”
e1“creeping bentgrass”
Claim · model-written summary
No stress symptoms were observed following PGR application during hot dry weather.
- Taxon
- creeping bentgrassAgrostis stoloniferae1
- Treatment
- PGR applicatione0
- Outcome
- No stress symptoms (yellowing, etiolation)e0
- Qualifier
- during hot/dry weathere0
- Setting
- putting green turfe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No stress symptoms (yellowing, etiolation) were observed on the putting green turf in response to PGR application during hot/dry weather at any point during the experiment”
e1“creeping bentgrass”
The same questions in other papers
class · growth · Agrostis stolonifera (creeping bent grass)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
class · quality: postharvest · Agrostis stolonifera (creeping bent grass)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- 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.