Abstract
Control of littleseed canarygrass ( Phalaris minor Retz.), wild oat ( Avena fatua L.), common lambsquarters ( Chenopodium album L.), and field bindweed ( Convolvulus arvensis L.) in dwarf wheat ( Triticum aestivum L.) fields was studied with five herbicides and hand weeding. Terbutryn [2-( tert -butylamino)-4-(ethylamino)-6-(methylthio)- s -triazine] and 1-benzthiazol-2-yl-1,3-dimethylurea controlled the weeds more effectively than did two hand weedings. Diuron [3-(3,4-dichlorophenyl)-1,1-dimethylurea], nitrofen (2,4-dichlorophenyl p -nitrophenyl ether), and dichlormate (3,4-dichlorobenzyl methylcarbamate), proved only partially effective against weeds, and were therefore significantly inferior to two hand weedings. Spikes per meter of row length and test weight of wheat were increased significantly by 1-benzthiazol-2-yl-1,3-dimethylurea (1.5 to 2 kg/ha), terbutryn (0.5 kg/ha), and two hand weedings over the yields of the weedy check. The 1-benzthiazol-2-yl-1,3-dimethylurea showed a high degree of selectivity in the wheat crop at 2 kg/ha and increased yields to those of weed-free plots. Terbutryn was almost as effective as 1-benzthiazol-2-yl-1,3-dimethylurea, which increased the wheat yields over those of the weedy check by 19.8 and 42.4% during the 1974/75 and 1975/76 seasons, respectively. Tolerance of dwarf wheat to terbutryn at 0.75 kg/ha was variable, resulting in significant decreases in yield components and grain yield. Dry-matter yield of wheat was negatively correlated with the dry matter production of weeds.
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Claims 12
Claim · model-written summary
Terbutryn controlled weeds more effectively than two hand weedings in dwarf wheat.
- Taxon
- Dwarf Wheat (Triticum aestivum)
Triticum aestivumt0 - Treatment
- Terbutryne1
- Interactor
- weedse1weed
- Outcome
- controlled the weedse1
- Direction
- more effectivelye1
- Comparator
- two hand weedingse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Dwarf Wheat (Triticum aestivum)”
e1“Terbutryn [2-( tert -butylamino)-4-(ethylamino)-6-(methylthio)- s -triazine] and 1-benzthiazol-2-yl-1,3-dimethylurea controlled the weeds more effectively than did two hand weedings”
Claim · model-written summary
1-benzthiazol-2-yl-1,3-dimethylurea controlled weeds more effectively than two hand weedings in dwarf wheat.
- Taxon
- Dwarf Wheat (Triticum aestivum)Triticum aestivumt0
- Treatment
- 1-benzthiazol-2-yl-1,3-dimethylureae1
- Interactor
- weedse1weed
- Outcome
- controlled the weedse1
- Direction
- more effectivelye1
- Comparator
- two hand weedingse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Dwarf Wheat (Triticum aestivum)”
e1“Terbutryn [2-( tert -butylamino)-4-(ethylamino)-6-(methylthio)- s -triazine] and 1-benzthiazol-2-yl-1,3-dimethylurea controlled the weeds more effectively than did two hand weedings”
Claim · model-written summary
Diuron, nitrofen and dichlormate were only partially effective against weeds and significantly inferior to two hand weedings.
- Taxon
- Dwarf Wheat (Triticum aestivum)Triticum aestivumt0
- Treatment
- Diurone2
- Interactor
- weedse2weed
- Outcome
- effective against weedse2
- Direction
- significantly inferiore2
- Comparator
- two hand weedingse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Dwarf Wheat (Triticum aestivum)”
e2“Diuron [3-(3,4-dichlorophenyl)-1,1-dimethylurea], nitrofen (2,4-dichlorophenyl p -nitrophenyl ether), and dichlormate (3,4-dichlorobenzyl methylcarbamate), proved only partially effective against weeds, and were therefore significantly inferior to two hand weedings”
Claim · model-written summary
1-benzthiazol-2-yl-1,3-dimethylurea at 1.5 to 2 kg/ha significantly increased spikes per meter and test weight of wheat over the weedy check.
- Taxon
- Dwarf Wheat (Triticum aestivum)Triticum aestivumt0
- Treatment
- 1-benzthiazol-2-yl-1,3-dimethylurea (1.5 to 2 kg/ha)e3
- Outcome
- Spikes per meter of row length and test weight of wheate3
- Direction
- increased significantlye3
- Comparator
- weedy checke3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Dwarf Wheat (Triticum aestivum)”
e3“Spikes per meter of row length and test weight of wheat were increased significantly by 1-benzthiazol-2-yl-1,3-dimethylurea (1.5 to 2 kg/ha), terbutryn (0.5 kg/ha), and two hand weedings over the yields of the weedy check”
Claim · model-written summary
Terbutryn at 0.5 kg/ha significantly increased spikes per meter and test weight of wheat over the weedy check.
- Taxon
- Dwarf Wheat (Triticum aestivum)Triticum aestivumt0
- Treatment
- terbutryn (0.5 kg/ha)e3
- Outcome
- Spikes per meter of row length and test weight of wheate3
- Direction
- increased significantlye3
- Comparator
- weedy checke3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Dwarf Wheat (Triticum aestivum)”
e3“Spikes per meter of row length and test weight of wheat were increased significantly by 1-benzthiazol-2-yl-1,3-dimethylurea (1.5 to 2 kg/ha), terbutryn (0.5 kg/ha), and two hand weedings over the yields of the weedy check”
Claim · model-written summary
Two hand weedings significantly increased spikes per meter and test weight of wheat over the weedy check.
- Taxon
- Dwarf Wheat (Triticum aestivum)Triticum aestivumt0
- Treatment
- two hand weedingse3
- Outcome
- Spikes per meter of row length and test weight of wheate3
- Direction
- increased significantlye3
- Comparator
- weedy checke3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Dwarf Wheat (Triticum aestivum)”
e3“Spikes per meter of row length and test weight of wheat were increased significantly by 1-benzthiazol-2-yl-1,3-dimethylurea (1.5 to 2 kg/ha), terbutryn (0.5 kg/ha), and two hand weedings over the yields of the weedy check”
Claim · model-written summary
1-benzthiazol-2-yl-1,3-dimethylurea at 2 kg/ha was selective in wheat and increased yields to those of weed-free plots.
- Taxon
- Dwarf Wheat (Triticum aestivum)Triticum aestivumt0
- Treatment
- 1-benzthiazol-2-yl-1,3-dimethylureae4
- Outcome
- yieldse4
- Direction
- increasede4
- Qualifier
- at 2 kg/hae4
- Comparator
- weed-free plotse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Dwarf Wheat (Triticum aestivum)”
e4“The 1-benzthiazol-2-yl-1,3-dimethylurea showed a high degree of selectivity in the wheat crop at 2 kg/ha and increased yields to those of weed-free plots”
Claim · model-written summary
Terbutryn was almost as effective as 1-benzthiazol-2-yl-1,3-dimethylurea in controlling weeds.
- Taxon
- Dwarf Wheat (Triticum aestivum)Triticum aestivumt0
- Treatment
- Terbutryne5
- Outcome
- effectivee5
- Direction
- almost as effectivee5
- Comparator
- 1-benzthiazol-2-yl-1,3-dimethylureae5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Dwarf Wheat (Triticum aestivum)”
e5“Terbutryn was almost as effective as 1-benzthiazol-2-yl-1,3-dimethylurea, which increased the wheat yields over those of the weedy check by 19.8 and 42.4% during the 1974/75 and 1975/76 seasons, respectively”
Claim · model-written summary
1-benzthiazol-2-yl-1,3-dimethylurea increased wheat yields over the weedy check by 19.8% in 1974/75.
- Taxon
- Dwarf Wheat (Triticum aestivum)Triticum aestivumt0
- Treatment
- 1-benzthiazol-2-yl-1,3-dimethylureae5
- Outcome
- wheat yieldse5
- Direction
- increasede5
- Value
- 19.8e5
- Comparator
- weedy checke5
- Setting
- 1974/75e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Dwarf Wheat (Triticum aestivum)”
e5“Terbutryn was almost as effective as 1-benzthiazol-2-yl-1,3-dimethylurea, which increased the wheat yields over those of the weedy check by 19.8 and 42.4% during the 1974/75 and 1975/76 seasons, respectively”
Claim · model-written summary
1-benzthiazol-2-yl-1,3-dimethylurea increased wheat yields over the weedy check by 42.4% in 1975/76.
- Taxon
- Dwarf Wheat (Triticum aestivum)Triticum aestivumt0
- Treatment
- 1-benzthiazol-2-yl-1,3-dimethylureae5
- Outcome
- wheat yieldse5
- Direction
- increasede5
- Value
- 42.4%e5
- Comparator
- weedy checke5
- Setting
- 1975/76e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Dwarf Wheat (Triticum aestivum)”
e5“Terbutryn was almost as effective as 1-benzthiazol-2-yl-1,3-dimethylurea, which increased the wheat yields over those of the weedy check by 19.8 and 42.4% during the 1974/75 and 1975/76 seasons, respectively”
Claim · model-written summary
Terbutryn at 0.75 kg/ha caused significant decreases in yield components and grain yield of dwarf wheat, with variable tolerance.
- Taxon
- Dwarf Wheat (Triticum aestivum)Triticum aestivumt0
- Treatment
- terbutryn at 0.75 kg/hae6
- Outcome
- yield components and grain yielde6
- Direction
- significant decreasese6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Dwarf Wheat (Triticum aestivum)”
e6“Tolerance of dwarf wheat to terbutryn at 0.75 kg/ha was variable, resulting in significant decreases in yield components and grain yield”
Claim · model-written summary
Dry-matter yield of wheat was negatively correlated with dry matter production of weeds.
- Taxon
- Dwarf Wheat (Triticum aestivum)Triticum aestivumt0
- Outcome
- Dry-matter yield of wheate7
- Direction
- negatively correlatede7
- Comparator
- dry matter production of weedse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Dwarf Wheat (Triticum aestivum)”
e7“Dry-matter yield of wheat was negatively correlated with the dry matter production of weeds”
The same questions in other papers
terbutryn · yield · Triticum aestivum (wheat)Positive and negative results
4 in the opposite direction
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →terbutryn · weed · Triticum aestivum (wheat)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
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.