Claim · model-written summary
In 1988, reproduction of low-density P. penetrans was 3.5 times higher with P. scribneri present than absent.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- P. scribneri was also presente4
- Interactor
- P. penetrans
Pratylenchus penetranse4pathogen - Second interactor
- P. scribneriPratylenchus scribnerie4pathogen
- Outcome
- reproduction for low densities of P. penetranse4
- Direction
- highere4
- Value
- 3.5 timese4
- Qualifier
- in 1988e4
- Comparator
- when it was absente4
- Setting
- Microplotse0
Not reportedMaterialGeneCompoundOrgan / stage
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Microplots were infested with combinations of the fungus Verticillium dahliae and Pratylenchus penetrans and P. scribneri to test for individual and combined effects of these organisms on potato yield and nematode reproduction.”
e4“In 1987, reproduction for low densities of P. penetrans was 5 times higher when P. scribneri was also present than when it was absent, and 3.5 times higher in 1988”
Title
T A Wheeler; R M Riedel PubMed 1994
Other claims from this paper (12)
- Intervention effect Verticillium dahliae alone caused potato yield losses in all three years.
- Observation The interaction between P. penetrans and V. dahliae was significant in two years.
- Intervention effect Pratylenchus penetrans alone caused potato yield losses in two years.
- Intervention effect P. scribneri alone caused potato yield losses in one year.
- Observation No two-way or three-way interaction involving P. scribneri was found on potato.
- Intervention effect In 1987, reproduction of low-density P. penetrans was five times higher with P. scribneri present than absent.
- Intervention effect Verticillium dahliae decreased reproduction of P. scribneri in 1987-88.
- Intervention effect Verticillium dahliae negatively affected the final population density of P. scribneri.
- Association Final population density of P. scribneri was positively related to its initial proportion relative to P. penetrans.
- Intervention effect Verticillium dahliae negatively affected reproduction of P. penetrans in mixtures with P. penetrans proportions of 0.1 to 0.5.
- Association Reproduction of P. penetrans decreased linearly as its initial proportion increased in mixtures.
- Intervention effect Final population density of P. penetrans was affected only by Verticillium dahliae.