Abstract
Metribuzin [4-amino-6- tert -butyl-3-(methylthio)- as -triazine-5(4 H )one] provided adequate preemergence weed control on direct-seeded or transplanted tomato ( Lycopersicon esculentum Mill.) on Plainfield sand and Drummer silty clay loam soils. Metribuzin demonstrated selective postemergence activity in the field but in glasshouse studies tomato cultivars had a wide range of tolerance to metribuzin applied to the foliage. Tomatoes were more susceptible to injury when they were less than 10-cm tall. Metribuzin was more effective in controlling broadleaf weeds than grass weeds, but grass control was acceptable with higher rates. Ultraviolet light decomposed metribuzin and weed control was improved when metribuzin was incorporated into the soil after application. Metribuzin treatment increased fruit yields. No metribuzin activity was found in the plots by the end of the growing season.
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Claims 9
Claim · model-written summary
Metribuzin showed selective postemergence activity in the field
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- Metribuzine2
- Outcome
- selective postemergence activitye2
- Setting
- in the fielde2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Weed Control in Tomato”
e2“Metribuzin demonstrated selective postemergence activity in the field”
Claim · model-written summary
Glasshouse tomato cultivars differed widely in tolerance to foliar metribuzin
- Taxon
- tomato
Solanum lycopersicumt0 - Material
- tomato cultivarse3
- Outcome
- tolerance to metribuzin applied to the foliagee3
- Qualifier
- wide rangee3
- Setting
- glasshouse studiese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Weed Control in Tomato”
e3“in glasshouse studies tomato cultivars had a wide range of tolerance to metribuzin applied to the foliage”
Claim · model-written summary
Tomatoes were more susceptible to injury when less than 10-cm tall
- Taxon
- Tomatoes
Solanum lycopersicume4 - Organ / stage
- less than 10-cm talle4
- Outcome
- susceptible to injurye4
- Direction
- moree4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Weed Control in Tomato”
e4“Tomatoes were more susceptible to injury when they were less than 10-cm tall”
Claim · model-written summary
Metribuzin was more effective against broadleaf weeds than against grass weeds
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- Metribuzine5
- Interactor
- broadleaf weedse5weed
- Outcome
- controlling broadleaf weedse5
- Direction
- more effectivee5
- Comparator
- grass weedse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Weed Control in Tomato”
e5“Metribuzin was more effective in controlling broadleaf weeds than grass weeds”
Claim · model-written summary
Ultraviolet light decomposed metribuzin
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- Ultraviolet lighte6
- Outcome
- metribuzine6
- Direction
- decomposede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Weed Control in Tomato”
e6“Ultraviolet light decomposed metribuzin”
Claim · model-written summary
Incorporating metribuzin into the soil after application improved weed control
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- incorporated into the soil after applicatione7
- Interactor
- weede7weed
- Outcome
- weed controle7
- Direction
- improvede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Weed Control in Tomato”
e7“weed control was improved when metribuzin was incorporated into the soil after application”
Claim · model-written summary
Metribuzin treatment increased tomato fruit yields
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- Metribuzin treatmente1
- Outcome
- fruit yieldse1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Weed Control in Tomato”
e1“Metribuzin treatment increased fruit yields”
Claim · model-written summary
No metribuzin activity was found in the plots by the end of the growing season
- Taxon
- tomato
Solanum lycopersicumt0 - Outcome
- metribuzin activitye1
- Qualifier
- by the end of the growing seasone1
- Setting
- the plotse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Weed Control in Tomato”
e1“No metribuzin activity was found in the plots by the end of the growing season”
Claim · model-written summary
Grass weed control with metribuzin was acceptable at higher rates
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- higher ratese1
- Outcome
- grass controle1
- Qualifier
- acceptablee1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Weed Control in Tomato”
e1“grass control was acceptable with higher rates”
The same questions in other papers
metribuzin · yield · Solanum lycopersicum (tomato)Results differ
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- negative
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See all 15 papers →light · molecular: metabolites · Solanum lycopersicum (tomato)Positive and negative results
28 papers in the same direction as this paper · 42 in the opposite direction
- positive
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See all 71 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.