Abstract
Field studies have shown primisulfuron to be more injurious to sugarbeet than nicosulfuron 1 and 2 yr after herbicide application. Experiments were initiated to determine if primisulfuron is more injurious to sugarbeet grown in a nutrient culture and if the difference in sugarbeet response is a result of greater uptake, translocation, or acetolactate synthase (ALS) site sensitivity with primisulfuron. Concentrations of primisulfuron and nicosulfuron that reduced sugarbeet growth by 50% were 1.9 and 8.9 μg ai L −1 , respectively, at pH 6.5. The pH of the nutrient solution did not influence sugarbeet response to either herbicide. Uptake of primisulfuron was greater (3%) than that of nicosulfuron (1%). Translocation (expressed as a percent of uptake) of nicosulfuron was more rapid than primisulfuron. Fifty-seven percent of the absorbed nicosulfuron translocated out of the root during the 12-h pulse period, while an equal concentration of primisulfuron was not translocated out of the root until 48 h after pulsing. The total nicosulfuron translocated after 144 h was half that of primisulfuron. The nutrient solution taken up by sugarbeet in the 12-h pulse period was reduced by 41% in the presence of either herbicide compared to the untreated control. The ALS enzyme was a minimum of 15 times more sensitive to primisulfuron compared to nicosulfuron which may account for greater sugarbeet response to primisulfuron.
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Claims 12
Claim · model-written summary
Primisulfuron was more injurious to sugarbeet than nicosulfuron one and two years after application.
- Taxon
- sugarbeet
Beta vulgaris subsp. vulgarise0 - Treatment
- primisulfurone0
- Outcome
- injurious to sugarbeete0
- Direction
- more injuriouse0
- Qualifier
- 1 and 2 yr after herbicide applicatione0
- Comparator
- nicosulfurone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field studies have shown primisulfuron to be more injurious to sugarbeet than nicosulfuron 1 and 2 yr after herbicide application.”
Claim · model-written summary
At pH 6.5, 1.9 μg ai L −1 primisulfuron reduced sugarbeet growth by 50%.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarise0
- Treatment
- primisulfurone0
- Outcome
- sugarbeet growthe0
- Direction
- reducede0
- Value
- 1.9e0
- Qualifier
- at pH 6.5e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Concentrations of primisulfuron and nicosulfuron that reduced sugarbeet growth by 50% were 1.9 and 8.9 μg ai L −1 , respectively, at pH 6.5.”
Claim · model-written summary
At pH 6.5, 8.9 μg ai L −1 nicosulfuron reduced sugarbeet growth by 50%.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarise0
- Treatment
- nicosulfurone0
- Outcome
- sugarbeet growthe0
- Direction
- reducede0
- Value
- 8.9 μg ai L −1e0
- Qualifier
- at pH 6.5e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Concentrations of primisulfuron and nicosulfuron that reduced sugarbeet growth by 50% were 1.9 and 8.9 μg ai L −1 , respectively, at pH 6.5.”
Claim · model-written summary
Nutrient solution pH did not influence sugarbeet response to either herbicide.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarise0
- Treatment
- pH of the nutrient solutione0
- Outcome
- sugarbeet responsee0
- Direction
- did not influencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The pH of the nutrient solution did not influence sugarbeet response to either herbicide.”
Claim · model-written summary
Sugarbeet took up more primisulfuron (3%) than nicosulfuron (1%).
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Treatment
- primisulfurone0
- Outcome
- Uptake of primisulfurone0
- Direction
- greatere0
- Value
- 3%e0
- Qualifier
- 1%e0
- Comparator
- nicosulfurone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Uptake of primisulfuron was greater (3%) than that of nicosulfuron (1%).”
t0“Sugarbeet”
Claim · model-written summary
The percentage of uptake translocated was more rapid for nicosulfuron than primisulfuron.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Treatment
- nicosulfurone0
- Outcome
- Translocatione0
- Direction
- more rapide0
- Comparator
- primisulfurone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Translocation (expressed as a percent of uptake) of nicosulfuron was more rapid than primisulfuron.”
t0“Sugarbeet”
Claim · model-written summary
Of absorbed nicosulfuron, 57% translocated out of the root in the 12-h pulse period.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Organ / stage
- roote0
- Outcome
- absorbed nicosulfuron translocated out of the roote0
- Value
- Fifty-seven percente0
- Qualifier
- 12-h pulse periode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fifty-seven percent of the absorbed nicosulfuron translocated out of the root during the 12-h pulse period”
t0“Sugarbeet”
Claim · model-written summary
An equal concentration of primisulfuron did not translocate out of the root until 48 h after pulsing.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Organ / stage
- roote0
- Outcome
- primisulfuron was not translocated out of the roote0
- Value
- 48 he0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an equal concentration of primisulfuron was not translocated out of the root until 48 h after pulsing.”
t0“Sugarbeet”
Claim · model-written summary
After 144 h, total nicosulfuron translocation was half that of primisulfuron.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Treatment
- nicosulfurone0
- Outcome
- total nicosulfuron translocatede0
- Direction
- halfe0
- Value
- halfe0
- Qualifier
- after 144 he0
- Comparator
- primisulfurone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The total nicosulfuron translocated after 144 h was half that of primisulfuron.”
t0“Sugarbeet”
Claim · model-written summary
Either herbicide reduced nutrient solution uptake by sugarbeet by 41% versus untreated control.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarise0
- Treatment
- either herbicidee0
- Outcome
- nutrient solution taken up by sugarbeete0
- Direction
- reducede0
- Value
- 41%e0
- Qualifier
- 12-h pulse periode0
- Comparator
- untreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The nutrient solution taken up by sugarbeet in the 12-h pulse period was reduced by 41% in the presence of either herbicide compared to the untreated control.”
Claim · model-written summary
Sugarbeet ALS was at least 15 times more sensitive to primisulfuron than nicosulfuron.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Treatment
- primisulfurone0
- Gene
- ALS enzymee0
- Outcome
- ALS enzymee0
- Direction
- more sensitivee0
- Value
- a minimum of 15 timese0
- Comparator
- nicosulfurone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ALS enzyme was a minimum of 15 times more sensitive to primisulfuron compared to nicosulfuron”
t0“Sugarbeet”
Claim · model-written summary
Higher ALS sensitivity may account for the greater sugarbeet response to primisulfuron.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarise0
- Gene
- ALS enzymee0
- Outcome
- greater sugarbeet response to primisulfurone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ALS enzyme was a minimum of 15 times more sensitive to primisulfuron compared to nicosulfuron which may account for greater sugarbeet response to primisulfuron.”
The same questions in other papers
nicosulfuron · growth · Beta vulgaris (beet)Results agree
2 papers in the same direction as this paper
- negative
- negative
herbicide · nutrient: content · Beta vulgaris (beet)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- no effect
1 paper more in this group
See all 5 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.