Abstract
An established alfalfa stand infested with quackgrass received fluazifop-P, haloxyfop, or quizalofop at single applications of 0.28 ae kg ha -1 and sequential applications of 0.14 plus 0.14 ae kg ha -1 with the second treatment being made 16 d after the first. All herbicide treatments increased diffusive resistance and decreased transpiration of quackgrass compared to control plants. These effects became apparent 16 d or more after spraying. Visual injury symptoms were noted 8 to 10 d after treatment, several days prior to changes in diffusive resistance or transpiration. The alfalfa content of the first cutting was increased from herbicide treatment; however, total forage yield was reduced. Yields and composition of later cuttings were unaffected by the various herbicide treatments.
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Claims 8
Claim · model-written summary
All herbicide treatments increased quackgrass diffusive resistance versus control.
Verbatim
e0“All herbicide treatments increased diffusive resistance and decreased transpiration of quackgrass compared to control plants”
Claim · model-written summary
All herbicide treatments decreased quackgrass transpiration versus control.
Verbatim
e0“All herbicide treatments increased diffusive resistance and decreased transpiration of quackgrass compared to control plants”
Claim · model-written summary
These physiological effects appeared at least 16 days after spraying.
Verbatim
e0“These effects became apparent 16 d or more after spraying”
t0“Quackgrass”
Claim · model-written summary
Visible injury occurred 8 to 10 days after herbicide treatment.
Verbatim
e0“Visual injury symptoms were noted 8 to 10 d after treatment”
t0“Quackgrass”
Claim · model-written summary
Herbicide treatment increased alfalfa content of the first cutting.
- Taxon
- alfalfa
Medicago sativae0 - Treatment
- herbicide treatmente0
- Outcome
- alfalfa content of the first cuttinge0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The alfalfa content of the first cutting was increased from herbicide treatment”
Claim · model-written summary
Herbicide treatment reduced total forage yield.
- Taxon
- alfalfaMedicago sativae1
- Treatment
- herbicide treatmente1
- Outcome
- total forage yielde0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total forage yield was reduced”
e1“The alfalfa content of the first cutting was increased from herbicide treatment”
Claim · model-written summary
Herbicide treatments left yields of later cuttings unaffected.
- Taxon
- alfalfaMedicago sativae1
- Treatment
- various herbicide treatmentse0
- Outcome
- Yieldse0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yields and composition of later cuttings were unaffected by the various herbicide treatments”
e1“An established alfalfa stand”
Claim · model-written summary
Herbicide treatments left composition of later cuttings unaffected.
- Taxon
- alfalfaMedicago sativae1
- Treatment
- various herbicide treatmentse0
- Outcome
- composition of later cuttingse0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yields and composition of later cuttings were unaffected by the various herbicide treatments”
e1“An established alfalfa stand”
The same questions in other papers
herbicide · yield · Medicago sativa (alfalfa)Results differ
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- no effect
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herbicide · molecular: metabolites · Medicago sativa (alfalfa)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction · 2 reporting no difference from an alternative
- negative
- no effect
- no effect
2 papers more in this group
See all 6 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.