Abstract
Eight kinds of extracts of Chinese medicinal herbs and their mixtures were used to screen out effective Chinese medicinal herbs for controlling downy mildew of organic lettuce.The results showed that,the eight kinds of Chinese medicinal herb extracts and their mixtures showed significantly better inhibition effects on the germination of lettuce downy mildew spores and incidence of downy mildew in field than the control treatment.And the mixtures did better than single Chinese medicinal herb on inhibiting the germination of downy mildew spores and the incidence of downy mildew in field.The mixture Andrographis paniculata∶Magnolia officinalis∶burdock=2∶1∶1 did best on inhibiting spore germination and possessed the best prevention effect on lettuce downy mildew in seedling stage,while the mixture A.paniculata ∶M.officinalis∶burdock=1∶1∶2 had best treatment effect on lettuce downy mildew in seedling stage.
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Claims 7
Claim · model-written summary
The extracts and mixtures significantly inhibited downy mildew spore germination relative to the control.
- Taxon
- Lettuce
Lactuca sativat0 - Treatment
- the eight kinds of Chinese medicinal herb extracts and their mixturese0
- Interactor
- lettuce downy mildew
Bremia lactucaee0pathogen - Outcome
- germination of lettuce downy mildew sporese0
- Direction
- better inhibitione0
- Comparator
- the control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

.jpg?width=500)
Verbatim
e0“the eight kinds of Chinese medicinal herb extracts and their mixtures showed significantly better inhibition effects on the germination of lettuce downy mildew spores and incidence of downy mildew in field than the control treatment”
t0“Lettuce”
Claim · model-written summary
The extracts and mixtures significantly reduced field downy mildew incidence relative to the control.
- Taxon
- Lettuce
Lactuca sativat0 - Treatment
- the eight kinds of Chinese medicinal herb extracts and their mixturese0
- Interactor
- downy mildewPeronosporaceaee0pathogen
- Outcome
- incidence of downy mildew in fielde0
- Direction
- better inhibitione0
- Comparator
- the control treatmente0
- Setting
- fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the eight kinds of Chinese medicinal herb extracts and their mixtures showed significantly better inhibition effects on the germination of lettuce downy mildew spores and incidence of downy mildew in field than the control treatment”
t0“Lettuce”
Claim · model-written summary
Mixtures inhibited downy mildew spore germination better than single herbs.
- Taxon
- Lettuce
Lactuca sativat0 - Treatment
- the mixturese0
- Interactor
- downy mildewPeronosporaceaee0pathogen
- Outcome
- germination of downy mildew sporese0
- Direction
- did bettere0
- Comparator
- single Chinese medicinal herbe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the mixtures did better than single Chinese medicinal herb on inhibiting the germination of downy mildew spores and the incidence of downy mildew in field”
t0“Lettuce”
Claim · model-written summary
Mixtures controlled field downy mildew incidence better than single herbs.
- Taxon
- Lettuce
Lactuca sativat0 - Treatment
- the mixturese0
- Interactor
- downy mildewPeronosporaceaee0pathogen
- Outcome
- incidence of downy mildew in fielde0
- Direction
- did bettere0
- Comparator
- single Chinese medicinal herbe0
- Setting
- fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the mixtures did better than single Chinese medicinal herb on inhibiting the germination of downy mildew spores and the incidence of downy mildew in field”
t0“Lettuce”
Claim · model-written summary
The 2:1:1 mixture was best at inhibiting spore germination.
- Taxon
- Lettuce
Lactuca sativat0 - Treatment
- Andrographis paniculata∶Magnolia officinalis∶burdock=2∶1∶1e0
- Outcome
- spore germinatione0
- Direction
- did beste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The mixture Andrographis paniculata∶Magnolia officinalis∶burdock=2∶1∶1 did best on inhibiting spore germination”
t0“Lettuce”
Claim · model-written summary
The 2:1:1 mixture gave the best prevention at the seedling stage.
- Taxon
- Lettuce
Lactuca sativat0 - Organ / stage
- seedling stagee0
- Treatment
- Andrographis paniculata∶Magnolia officinalis∶burdock=2∶1∶1e0
- Interactor
- lettuce downy mildew
Bremia lactucaee0pathogen - Outcome
- prevention effect on lettuce downy mildewe0
- Direction
- beste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

.jpg?width=500)
Verbatim
e0“The mixture Andrographis paniculata∶Magnolia officinalis∶burdock=2∶1∶1 did best on inhibiting spore germination and possessed the best prevention effect on lettuce downy mildew in seedling stage”
t0“Lettuce”
Claim · model-written summary
The 1:1:2 mixture gave the best treatment effect at the seedling stage.
- Taxon
- Lettuce
Lactuca sativat0 - Organ / stage
- seedling stagee0
- Treatment
- A.paniculata ∶M.officinalis∶burdock=1∶1∶2e0
- Interactor
- lettuce downy mildew
Bremia lactucaee0pathogen - Outcome
- treatment effect on lettuce downy mildewe0
- Direction
- beste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

.jpg?width=500)
Verbatim
e0“the mixture A.paniculata ∶M.officinalis∶burdock=1∶1∶2 had best treatment effect on lettuce downy mildew in seedling stage”
t0“Lettuce”
The same questions in other papers
botanical · Bremia lactucae · Lactuca sativa (garden lettuce)Results agree
1 paper in the same direction as this paper
- 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.