Abstract
The effects of soil type and initial inoculum density (Pi) on the reproductive and damage potentials of Meloidogyne incognita and Rotylenchulus reniformis on cotton were evaluated in microplot experiments from 1991 to 1993. The equilibrium nematode population density for R. reniformis on cotton was much greater than that of M. incognita, indicating that cotton is a better host for R. reniformis than M. incognita. Reproduction of M. incognita was greater in coarse-textured soils than in fine-textured soils, whereas R. reniformis reproduction was greatest in a Portsmouth loamy sand with intermediate percentages of clay plus silt. Population densities of M. incognita were inversely related to the percentage of silt and clay, but R. reniformis was favored by moderate levels of clay plus silt (ca. 28%). Both M. incognita races 3 and 4 and R. reniformis effected suppression of seed-cotton yield in all soil types evaluated. Cotton-yield suppression was greatest in response to R. reniformis at high Pi. Cotton maturity, measured as percentage of open bolls at different dates, was affected by the presence of nematodes in all 3 years.
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Claims 11
Claim · model-written summary
R. reniformis reached a much greater equilibrium population density on cotton than M. incognita.
- Taxon
- cotton
Gossypium hirsutume0 - Interactor
- R. reniformis
Rotylenchulus reniformise0pathogen - Outcome
- equilibrium nematode population density for R. reniformis on cottone0
- Direction
- much greatere0
- Comparator
- M. incognitae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The equilibrium nematode population density for R. reniformis on cotton was much greater than that of M. incognita”
Claim · model-written summary
Cotton was interpreted to be a better host for R. reniformis than for M. incognita.
- Taxon
- cottonGossypium hirsutume0
- Interactor
- R. reniformisRotylenchulus reniformise0pathogen
- Outcome
- better host for R. reniformise0
- Direction
- bettere0
- Comparator
- M. incognitae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cotton is a better host for R. reniformis than M. incognita”
Claim · model-written summary
M. incognita reproduced more in coarse textured than fine textured soils.
- Taxon
- CottonGossypium hirsutumt0
- Interactor
- M. incognita
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogyne incognitae0pathogen - Outcome
- Reproduction of M. incognitae0
- Direction
- greatere0
- Comparator
- fine-textured soilse0
- Setting
- coarse-textured soilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“Reproduction of M. incognita was greater in coarse-textured soils than in fine-textured soils”
t0“on Cotton”
Claim · model-written summary
R. reniformis reproduction was greatest in Portsmouth loamy sand.
- Taxon
- CottonGossypium hirsutumt0
- Interactor
- R. reniformisRotylenchulus reniformise0pathogen
- Outcome
- R. reniformis reproductione0
- Direction
- greateste0
- Setting
- Portsmouth loamy sande0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“R. reniformis reproduction was greatest in a Portsmouth loamy sand with intermediate percentages of clay plus silt”
t0“on Cotton”
Claim · model-written summary
M. incognita population density was inversely related to silt and clay percentage.
- Taxon
- CottonGossypium hirsutumt0
- Interactor
- M. incognitaMeloidogyne incognitae0pathogen
- Outcome
- Population densities of M. incognitae0
- Direction
- inverselye0
- Setting
- silt and claye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Population densities of M. incognita were inversely related to the percentage of silt and clay”
t0“on Cotton”
Claim · model-written summary
R. reniformis was favored by moderate clay and silt levels around 28%.
- Taxon
- CottonGossypium hirsutumt0
- Interactor
- R. reniformisRotylenchulus reniformise0pathogen
- Outcome
- R. reniformis was favorede0
- Direction
- favorede0
- Value
- ca. 28%e0
- Setting
- clay plus silte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“R. reniformis was favored by moderate levels of clay plus silt (ca. 28%)”
t0“on Cotton”
Claim · model-written summary
M. incognita race 3 suppressed seed cotton yield in every soil type tested.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- M. incognita races 3e0
- Interactor
- M. incognitaMeloidogyne incognitae0pathogen
- Outcome
- seed-cotton yielde0
- Direction
- suppressione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both M. incognita races 3 and 4 and R. reniformis effected suppression of seed-cotton yield in all soil types evaluated”
t0“on Cotton”
Claim · model-written summary
M. incognita race 4 suppressed seed cotton yield in every soil type tested.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- M. incognita races 3 and 4e0
- Interactor
- M. incognitaMeloidogyne incognitae0pathogen
- Outcome
- seed-cotton yielde0
- Direction
- suppressione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both M. incognita races 3 and 4 and R. reniformis effected suppression of seed-cotton yield in all soil types evaluated”
t0“on Cotton”
Claim · model-written summary
R. reniformis suppressed seed cotton yield in every soil type tested.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- R. reniformise0
- Interactor
- R. reniformisRotylenchulus reniformise0pathogen
- Outcome
- seed-cotton yielde0
- Direction
- suppressione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both M. incognita races 3 and 4 and R. reniformis effected suppression of seed-cotton yield in all soil types evaluated”
t0“on Cotton”
Claim · model-written summary
High initial R. reniformis density caused the greatest cotton yield suppression.
- Taxon
- CottonGossypium hirsutume0
- Interactor
- R. reniformisRotylenchulus reniformise0pathogen
- Outcome
- Cotton-yield suppressione0
- Direction
- greateste0
- Qualifier
- high Pie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton-yield suppression was greatest in response to R. reniformis at high Pi”
Claim · model-written summary
Nematode presence affected cotton maturity over all three years.
- Taxon
- CottonGossypium hirsutume0
- Outcome
- Cotton maturitye0
- Qualifier
- all 3 yearse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton maturity, measured as percentage of open bolls at different dates, was affected by the presence of nematodes in all 3 years”
The same questions in other papers
Rotylenchulus reniformis · yield · Gossypium hirsutum (cotton)Results agree
1 paper in the same direction as this paper
- negative
Meloidogyne incognita · yield · Gossypium hirsutum (cotton)Results agree
4 papers in the same direction as this paper
- negative
- negative
- negative
1 paper more in this group
See all 5 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.