Abstract
Tartary buckwheat, Fagopyrum tataricum (L.) Gaertn., sprayed with a quick- and a slow-acting herbicide continued to transpire water until the plants were dead. The quick-acting contact herbicide bromoxynil, 3,5-dibromo-4-hydroxy benzonitrile, reduced transpiration by 50% within one day and by over 80% within two days afer spraying. The systemic herbicide dicamba, 2-methoxy-3,6 dichlorobenzoic acid, did not reduce transpiration to near this level until 10 days after spraying. These transpiration differences due to the differential herbicide activity were highly significant. When buckwheat and barley were grown together and harvested 11 days after spraying, removal of the weed with these herbicides resulted in significantly heavier barley seedlings with more tillers per plant than in the untreated check. The differences in barley dry weight and culms per plant between the bromoxynil and dicamba treatments were not significant at this early growth stage. However, when harvested at the fully headed stage, the earlier removal of the buckwheat competition with the bromoxynil treatment resulted in the production of more dry weight of barley and heads per plant than with the slower acting dicamba.
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Claims 11
Claim · model-written summary
Sprayed Tartary buckwheat continued transpiring until plant death.
Verbatim
e0“Tartary buckwheat, Fagopyrum tataricum (L.) Gaertn., sprayed with a quick- and a slow-acting herbicide continued to transpire water until the plants were dead”
Claim · model-written summary
Bromoxynil reduced buckwheat transpiration 50% within one day.
- Taxon
- Tartary buckwheate1
- Treatment
- bromoxynile0
- Outcome
- transpiratione0
- Direction
- reducede0
- Value
- 50%e0
- Qualifier
- within one daye0
Not reportedComparator
Verbatim
e0“bromoxynil, 3,5-dibromo-4-hydroxy benzonitrile, reduced transpiration by 50% within one day”
e1“Tartary buckwheat”
Claim · model-written summary
Bromoxynil reduced buckwheat transpiration over 80% within two days.
- Taxon
- Tartary buckwheate1
- Treatment
- bromoxynile0
- Outcome
- transpiratione0
- Direction
- reducede0
- Value
- over 80%e0
- Qualifier
- within two dayse0
Not reportedComparator
Verbatim
e0“bromoxynil, 3,5-dibromo-4-hydroxy benzonitrile, reduced transpiration by 50% within one day and by over 80% within two days”
e1“Tartary buckwheat”
Claim · model-written summary
Dicamba took ten days to reduce transpiration near the bromoxynil level.
Not reportedComparator
Verbatim
e0“dicamba, 2-methoxy-3,6 dichlorobenzoic acid, did not reduce transpiration to near this level until 10 days after spraying”
e1“Tartary buckwheat”
Claim · model-written summary
The transpiration responses to the two herbicides differed significantly.
Not reportedDirection
Verbatim
e0“These transpiration differences due to the differential herbicide activity were highly significant”
e1“Tartary buckwheat”
Claim · model-written summary
Herbicide removal of buckwheat increased barley seedling weight at 11 days.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree0 - Treatment
- these herbicidese0
- Interactor
- buckwheate2weed
- Outcome
- barley seedlingse0
- Direction
- heaviere0
- Qualifier
- 11 days after sprayinge1
- Comparator
- untreated checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“removal of the weed with these herbicides resulted in significantly heavier barley seedlings with more tillers per plant than in the untreated check”
e1“harvested 11 days after spraying”
e2“buckwheat and barley”
Claim · model-written summary
Herbicide removal of buckwheat increased barley tillers per plant at 11 days.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- these herbicidese0
- Interactor
- buckwheate1weed
- Outcome
- tillers per plante0
- Direction
- moree0
- Comparator
- untreated checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“removal of the weed with these herbicides resulted in significantly heavier barley seedlings with more tillers per plant than in the untreated check”
e1“buckwheat and barley”
Claim · model-written summary
Early barley dry weight did not differ significantly between bromoxynil and dicamba.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- bromoxynile0
- Outcome
- barley dry weighte0
- Comparator
- dicambae0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“differences in barley dry weight and culms per plant between the bromoxynil and dicamba treatments were not significant”
Claim · model-written summary
Early barley culms per plant did not differ significantly between bromoxynil and dicamba.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- bromoxynile0
- Outcome
- culms per plante0
- Comparator
- dicambae0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“differences in barley dry weight and culms per plant between the bromoxynil and dicamba treatments were not significant”
Claim · model-written summary
At full heading, bromoxynil led to greater barley dry weight than dicamba.
- Taxon
- barleyHordeum vulgaree0
- Organ / stage
- fully headed stagee0
- Treatment
- bromoxynil treatmente0
- Interactor
- buckwheate0weed
- Outcome
- dry weight of barleye0
- Direction
- moree0
- Comparator
- dicambae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“when harvested at the fully headed stage, the earlier removal of the buckwheat competition with the bromoxynil treatment resulted in the production of more dry weight of barley and heads per plant than with the slower acting dicamba”
Claim · model-written summary
At full heading, bromoxynil led to more barley heads per plant than dicamba.
- Taxon
- barleyHordeum vulgaree0
- Organ / stage
- fully headed stagee0
- Treatment
- bromoxynil treatmente0
- Interactor
- buckwheate0weed
- Outcome
- heads per plante0
- Direction
- moree0
- Comparator
- dicambae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“when harvested at the fully headed stage, the earlier removal of the buckwheat competition with the bromoxynil treatment resulted in the production of more dry weight of barley and heads per plant than with the slower acting dicamba”
The same questions in other papers
herbicide · yield · Hordeum vulgare (barley)Results differ
41 papers in the same direction as this paper · 19 in the opposite direction
- positive
- no effect
- no effect
57 papers more in this group
See all 61 papers →herbicide · organism · Hordeum vulgare (barley)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
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.