Abstract
‘Vernal’ alfalfa response was evaluated when chlorsulfuron, thifensulfuron, 2,4-D, glyphosate, bromoxynil, and selected combinations of those herbicides were applied at rates simulating spray drift during the fourth trifoliolate leaf stage following the first cutting in 1990 and 1991. The order of phytotoxicity was 2,4-D > chlorsulfuron > thifensulfuron > glyphosate > bromoxynil. By the end of each growing season, alfalfa had recovered from injury caused by all herbicides except the highest rates of 2,4-D and 2,4-D plus glyphosate. The alfalfa stand was reduced only by 2,4-D and 2,4-D plus glyphosate. All herbicides caused characteristic symptoms, but some specific symptoms were similar among different herbicides or resembled symptoms caused by disease, mineral imbalance, and adverse weather conditions.
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Claims 4
Claim · model-written summary
The phytotoxicity order of the tested herbicides on alfalfa was 2,4-D > chlorsulfuron > thifensulfuron > glyphosate > bromoxynil.
- Taxon
- alfalfa
Medicago sativae0 - Organ / stage
- fourth trifoliolate leaf stagee0
- Outcome
- order of phytotoxicitye1
- Setting
- 1990 and 1991e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“alfalfa response was evaluated when chlorsulfuron, thifensulfuron, 2,4-D, glyphosate, bromoxynil, and selected combinations of those herbicides were applied at rates simulating spray drift during the fourth trifoliolate leaf stage following the first cutting in 1990 and 1991”
e1“The order of phytotoxicity was 2,4-D > chlorsulfuron > thifensulfuron > glyphosate > bromoxynil”
Claim · model-written summary
By season end, alfalfa had recovered from injury caused by all herbicides except the highest rates of 2,4-D and 2,4-D plus glyphosate.
- Taxon
- alfalfaMedicago sativae2
- Treatment
- all herbicidese2
- Outcome
- recovered from injurye2
- Direction
- recoverede2
- Comparator
- highest rates of 2,4-D and 2,4-D plus glyphosatee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“alfalfa response was evaluated when chlorsulfuron, thifensulfuron, 2,4-D, glyphosate, bromoxynil, and selected combinations of those herbicides were applied at rates simulating spray drift during the fourth trifoliolate leaf stage following the first cutting in 1990 and 1991”
e2“By the end of each growing season, alfalfa had recovered from injury caused by all herbicides except the highest rates of 2,4-D and 2,4-D plus glyphosate”
Claim · model-written summary
The alfalfa stand was reduced only by 2,4-D and 2,4-D plus glyphosate.
- Taxon
- alfalfaMedicago sativae3
- Treatment
- 2,4-D and 2,4-D plus glyphosatee3
- Outcome
- alfalfa stande3
- Direction
- reducede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“alfalfa response was evaluated when chlorsulfuron, thifensulfuron, 2,4-D, glyphosate, bromoxynil, and selected combinations of those herbicides were applied at rates simulating spray drift during the fourth trifoliolate leaf stage following the first cutting in 1990 and 1991”
e3“The alfalfa stand was reduced only by 2,4-D and 2,4-D plus glyphosate”
Claim · model-written summary
All herbicides caused characteristic symptoms on alfalfa.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- All herbicidese4
- Outcome
- characteristic symptomse4
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“alfalfa response was evaluated when chlorsulfuron, thifensulfuron, 2,4-D, glyphosate, bromoxynil, and selected combinations of those herbicides were applied at rates simulating spray drift during the fourth trifoliolate leaf stage following the first cutting in 1990 and 1991”
e4“All herbicides caused characteristic symptoms”
The same questions in other papers
glyphosate · organism · Medicago sativa (alfalfa)Results differ
4 papers in the same direction as this paper · 7 in the opposite direction
- positive
- positive
- positive
8 papers more in this group
See all 12 papers →2,4-D · organism · Medicago sativa (alfalfa)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
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.