Abstract
A replicated field study was conducted from 1972 to 1980 involving soybeans grown in 2-, 3-, and 4-year rotations with maize in soil infested with Meloidogyne incognita. Monocultured soybeans were maintained as controls. Cropping regimes involved root-knot nematode susceptible and resistant soybean cultivars and soybeans treated and not treated with nematicides. Yields of susceptible cultivars declined with reduced length of rotation. Nematicide treatment significantly increased yields of susceptible cultivars when monocultured, but bad little influence on yield when susceptible cultivars were grown in rotation. Yields of monocultured resistant cultivars were significantly lower than yields of resistant cultivars grown in rotation. However, yields of resistant cultivars grown in rotation were not influenced by the length of the rotation. Nematicide treatment significantly increased yields of monocultured resistant cultivars over the latter years of the study.
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Claims 6
Claim · model-written summary
Susceptible soybean cultivar yields declined as rotation length decreased.
- Taxon
- Soybean
Glycine maxt0 - Material
- susceptible cultivarse0
- Interactor
- Meloidogyne incognita
Meloidogyne incognitat0pathogen - Outcome
- Yields of susceptible cultivarse0
- Direction
- declinede0
- Qualifier
- reduced length of rotatione0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“Yields of susceptible cultivars declined with reduced length of rotation.”
t0“Soybean Grown in Meloidogyne incognita Infested Soil”
Claim · model-written summary
Nematicide treatment significantly increased yield of monocultured susceptible soybean cultivars.
- Taxon
- Soybean
Glycine maxt0 - Material
- susceptible cultivarse0
- Treatment
- Nematicide treatmente0
- Interactor
- Meloidogyne incognita
Meloidogyne incognitat0pathogen - Outcome
- yields of susceptible cultivarse0
- Direction
- increasede0
- Qualifier
- when monoculturede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“Nematicide treatment significantly increased yields of susceptible cultivars when monocultured”
t0“Soybean Grown in Meloidogyne incognita Infested Soil”
Claim · model-written summary
Nematicide treatment had little influence on yield of susceptible soybean cultivars grown in rotation.
- Taxon
- Soybean
Glycine maxt0 - Material
- susceptible cultivarse0
- Treatment
- Nematicide treatmente0
- Interactor
- Meloidogyne incognita
Meloidogyne incognitat0pathogen - Outcome
- yielde0
- Direction
- little influencee0
- Qualifier
- grown in rotatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“Nematicide treatment significantly increased yields of susceptible cultivars when monocultured, but bad little influence on yield when susceptible cultivars were grown in rotation”
t0“Soybean Grown in Meloidogyne incognita Infested Soil”
Claim · model-written summary
Resistant soybean cultivar yields were significantly lower in monoculture than in rotation.
- Taxon
- Soybean
Glycine maxt0 - Material
- resistant cultivarse0
- Treatment
- monoculturede0
- Interactor
- Meloidogyne incognita
Meloidogyne incognitat0pathogen - Outcome
- Yieldse0
- Direction
- lowere0
- Comparator
- grown in rotatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“Yields of monocultured resistant cultivars were significantly lower than yields of resistant cultivars grown in rotation.”
t0“Soybean Grown in Meloidogyne incognita Infested Soil”
Claim · model-written summary
Rotation length did not influence yields of resistant soybean cultivars grown in rotation.
- Taxon
- Soybean
Glycine maxt0 - Material
- resistant cultivarse0
- Interactor
- Meloidogyne incognita
Meloidogyne incognitat0pathogen - Outcome
- yields of resistant cultivarse0
- Direction
- were not influencede0
- Qualifier
- length of the rotatione0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“yields of resistant cultivars grown in rotation were not influenced by the length of the rotation”
t0“Soybean Grown in Meloidogyne incognita Infested Soil”
Claim · model-written summary
Nematicide treatment significantly increased yields of monocultured resistant soybean cultivars in the latter years.
- Taxon
- Soybean
Glycine maxt0 - Material
- resistant cultivarse0
- Treatment
- Nematicide treatmente0
- Interactor
- Meloidogyne incognita
Meloidogyne incognitat0pathogen - Outcome
- yieldse0
- Direction
- increasede0
- Qualifier
- over the latter years of the studye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“Nematicide treatment significantly increased yields of monocultured resistant cultivars over the latter years of the study”
t0“Soybean Grown in Meloidogyne incognita Infested Soil”
The same questions in other papers
insecticide · Meloidogyne incognita · Glycine max (soybean)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
1 paper more in this group
See all 5 papers →rotation · Meloidogyne incognita · Glycine max (soybean)Results agree
2 papers in the same direction as this paper
- no effect
- negative
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.