Abstract
ABSTRACT A 2-year field trial was conducted to determine the effects of green manures and crop sequences on potato scab and Verticillium wilt. In addition, indigenous streptomycete densities and in vitro pathogen inhibitory activity were measured and their relationships to plant disease were determined. Green manures (buckwheat, canola, or fallow controls) were tested in conjunction with three crop sequences (alfalfa-potato, cornpotato, and potato-potato). Compared with fallow controls, tubers grown in buckwheat-treated soil had significantly lower Verticillium wilt ratings, and tubers grown in buckwheat- or canola-treated soil had greater yields. Potatoes grown in soil planted to corn or alfalfa the previous year had significantly lower Verticillium wilt and potato scab ratings as well as higher yields than potatoes grown in soil previously planted to potato. Streptomycetes from soils collected from green manure-treated plots tended to have greater in vitro pathogen inhibitory activity than streptomycetes from fallow-treated plots. Furthermore, streptomycete pathogen inhibitory activity was frequently negatively correlated with plant disease and positively correlated with potato yield. These results indicate that green manure treatments may contribute to active management of the pathogen inhibitory activity of the streptomycete community to achieve plant disease control.
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Claims 7
Claim · model-written summary
Buckwheat green manure significantly lowered Verticillium wilt ratings in potato tubers compared with fallow controls.
- Taxon
- Potato
Solanum tuberosumt0 - Organ / stage
- tuberse1
- Treatment
- buckwheat-treated soile1
- Interactor
- VerticilliumVerticilliume1pathogen
- Outcome
- Verticillium wilt ratingse1
- Direction
- lowere1
- Comparator
- fallow controlse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato Diseases”
e1“Compared with fallow controls, tubers grown in buckwheat-treated soil had significantly lower Verticillium wilt ratings, and tubers grown in buckwheat- or canola-treated soil had greater yields”
Claim · model-written summary
Buckwheat- or canola-treated soil increased potato tuber yields compared with fallow controls.
- Taxon
- PotatoSolanum tuberosumt0
- Organ / stage
- tuberse1
- Treatment
- buckwheat- or canola-treated soile1
- Outcome
- yieldse1
- Direction
- greatere1
- Comparator
- fallow controlse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato Diseases”
e1“Compared with fallow controls, tubers grown in buckwheat-treated soil had significantly lower Verticillium wilt ratings, and tubers grown in buckwheat- or canola-treated soil had greater yields”
Claim · model-written summary
Potatoes after corn or alfalfa had significantly lower Verticillium wilt and potato scab ratings than after potato.
- Taxon
- PotatoesSolanum tuberosume2
- Treatment
- soil planted to corn or alfalfa the previous yeare2
- Interactor
- VerticilliumVerticilliume2pathogen
- Outcome
- Verticillium wilt and potato scab ratingse2
- Direction
- lowere2
- Comparator
- soil previously planted to potatoe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato Diseases”
e2“Potatoes grown in soil planted to corn or alfalfa the previous year had significantly lower Verticillium wilt and potato scab ratings as well as higher yields than potatoes grown in soil previously planted to potato”
Claim · model-written summary
Potatoes after corn or alfalfa had higher yields than after potato.
- Taxon
- PotatoesSolanum tuberosume2
- Treatment
- soil planted to corn or alfalfa the previous yeare2
- Outcome
- yieldse2
- Direction
- highere2
- Comparator
- soil previously planted to potatoe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato Diseases”
e2“Potatoes grown in soil planted to corn or alfalfa the previous year had significantly lower Verticillium wilt and potato scab ratings as well as higher yields than potatoes grown in soil previously planted to potato”
Claim · model-written summary
Streptomycetes from green manure-treated plots tended to have greater in vitro pathogen inhibitory activity than those from fallow-treated plots.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- green manure-treated plotse3
- Interactor
- streptomycetesKitasatosporalese3biocontrol_agent
- Outcome
- in vitro pathogen inhibitory activitye3
- Direction
- greatere3
- Comparator
- fallow-treated plotse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato Diseases”
e3“Streptomycetes from soils collected from green manure-treated plots tended to have greater in vitro pathogen inhibitory activity than streptomycetes from fallow-treated plots”
Claim · model-written summary
Streptomycete pathogen inhibitory activity was frequently negatively correlated with potato disease.
- Taxon
- PotatoSolanum tuberosumt0
- Interactor
- Streptomycetee4biocontrol_agent
- Outcome
- plant diseasee4
- Direction
- negatively correlatede4
- Qualifier
- frequentlye4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato Diseases”
e4“Streptomycete pathogen inhibitory activity was frequently negatively correlated with plant disease and positively correlated with potato yield”
Claim · model-written summary
Streptomycete pathogen inhibitory activity was positively correlated with potato yield.
- Taxon
- PotatoSolanum tuberosumt0
- Interactor
- Streptomycetee4biocontrol_agent
- Outcome
- potato yielde4
- Direction
- positively correlatede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato Diseases”
e4“Streptomycete pathogen inhibitory activity was frequently negatively correlated with plant disease and positively correlated with potato yield”
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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.