Abstract
Trifluralin is used for weed control in wheat but may reduce vegetative growth and yield. Postemergence (POST) herbicides may cause additional plant stress to trifluralin-stressed wheat. Field studies at Groton, SD in 1991 and 1992 and at Highmore, SD in 1992 evaluated the effects of 2,4-D-amine, difenzoquat, metsulfuron, and a combination of fenoxaprop-ethyl + 2,4-D-ester + MCPA-ester on hard red spring wheat cultivars ‘2375,’ ‘Prospect,’ and ‘Butte 86’ seeded in areas treated with preplant incorporated trifluralin either in the spring before seeding (0.56 kg ai/ha) or the previous year (1.12 or 2.24 kg ai/ha). Trifluralin applied alone in the spring, and followed by some POST herbicides, reduced shoot dry weight and grain yield. Trifluralin reduced the yield of Prospect the most and the yield of 2375 the least. Yields of trifluralin-treated wheat were reduced 23% by metsulfuron and 14% by fenoxaprop-ethyl + 2,4-D + MCPA compared to yields of wheat treated with only the respective POST herbicide. Yields were not reduced with any trifluralin-POST herbicide combination when trifluralin was applied a year prior to seeding wheat.
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Claims 5
Claim · model-written summary
Trifluralin applied alone in spring reduced spring wheat shoot dry weight and grain yield.
- Taxon
- Triticum aestivum
Triticum aestivumt0 - Treatment
- Trifluralin applied alone in the springe1
- Outcome
- shoot dry weight and grain yielde1
- Direction
- reducede1
- Setting
- Groton, SDe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Spring Wheat (Triticum aestivum)”
e0“Field studies at Groton, SD in 1991 and 1992 and at Highmore, SD in 1992”
e1“Trifluralin applied alone in the spring, and followed by some POST herbicides, reduced shoot dry weight and grain yield”
Claim · model-written summary
Trifluralin reduced the yield of cultivar Prospect the most, compared with cultivar 2375.
- Taxon
- Triticum aestivumTriticum aestivumt0
- Material
- Prospecte2
- Treatment
- Trifluraline2
- Outcome
- yielde2
- Direction
- reducede2
- Qualifier
- the moste2
- Comparator
- 2375e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Spring Wheat (Triticum aestivum)”
e2“Trifluralin reduced the yield of Prospect the most and the yield of 2375 the least”
Claim · model-written summary
Metsulfuron reduced yields of trifluralin-treated wheat by 23% compared with wheat treated with only metsulfuron.
- Taxon
- Triticum aestivumTriticum aestivumt0
- Treatment
- metsulfurone3
- Outcome
- Yieldse3
- Direction
- reducede3
- Value
- 23%e3
- Qualifier
- trifluralin-treated wheate3
- Comparator
- wheat treated with only the respective POST herbicidee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Spring Wheat (Triticum aestivum)”
e3“Yields of trifluralin-treated wheat were reduced 23% by metsulfuron and 14% by fenoxaprop-ethyl + 2,4-D + MCPA compared to yields of wheat treated with only the respective POST herbicide”
Claim · model-written summary
Fenoxaprop-ethyl + 2,4-D + MCPA reduced yields of trifluralin-treated wheat by 14% compared with wheat treated with only that POST herbicide.
- Taxon
- Triticum aestivumTriticum aestivumt0
- Treatment
- fenoxaprop-ethyl + 2,4-D + MCPAe3
- Outcome
- Yieldse3
- Direction
- reducede3
- Value
- 14%e3
- Qualifier
- trifluralin-treated wheate3
- Comparator
- wheat treated with only the respective POST herbicidee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Spring Wheat (Triticum aestivum)”
e3“Yields of trifluralin-treated wheat were reduced 23% by metsulfuron and 14% by fenoxaprop-ethyl + 2,4-D + MCPA compared to yields of wheat treated with only the respective POST herbicide”
Claim · model-written summary
Yields were not reduced by any trifluralin-POST herbicide combination when trifluralin was applied a year before seeding wheat.
- Taxon
- Triticum aestivumTriticum aestivumt0
- Treatment
- trifluralin was applied a year prior to seedinge4
- Outcome
- Yieldse4
- Direction
- not reducede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Spring Wheat (Triticum aestivum)”
e4“Yields were not reduced with any trifluralin-POST herbicide combination when trifluralin was applied a year prior to seeding wheat”
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