Claim · model-written summary
Without Verticillium dahliae, P. penetrans did not reduce potato plant growth and tuber yield below the nematode-free control, or did so only at the highest one or two population densities tested.
- Taxon
- Potato
Solanum tuberosumt0 - Treatment
- P. penetranse1
- Interactor
- P. penetrans
Pratylenchus penetranse1pest - Outcome
- plant growth and tuber yielde1
- Direction
- did not reducee1
- Qualifier
- In the absence of V. dahliaee1
- Comparator
- nematode-free controle1
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“'Russet Burbank' Potato”
e1“In the absence of V. dahliae, P. penetrans did not reduce plant growth and tuber yield below that of the nematode-free control or did so only at the highest one or two population densities tested”
Title
I A Saeed; A E Macguidwin; D I Rouse PubMed 1998
Other claims from this paper (11)
- Association Plant growth parameters of potato showed significant interactions between Pratylenchus penetrans and Verticillium dahliae in two experiments.
- Intervention effect With Verticillium dahliae present, the lowest nematode population density significantly reduced potato shoot weight in three experiments.
- Intervention effect With Verticillium dahliae present, the lowest nematode population density significantly reduced potato photosynthesis in four experiments.
- Intervention effect Higher nematode densities had no additional effect on potato shoot weight.
- Intervention effect Higher nematode densities caused additional reductions in potato photosynthesis in only one experiment.
- Intervention effect A nematode population density of 0.8 per cm3 soil reduced potato tuber yield by 51%.
- Intervention effect A nematode population density of 7.5 per cm3 soil reduced potato tuber yield by 45%.
- Intervention effect Densities higher than 0.8 nematodes/cm3 soil had no further effect on potato tuber yield.
- Intervention effect Densities higher than 7.5 nematodes/cm3 soil caused a 15% additional effect on potato tuber yield.
- Observation The authors conclude that interactive effects between P. penetrans and V. dahliae on Russet Burbank potato appear at P. penetrans densities below 1 nematode/cm3 soil.
- Observation The authors conclude that the nematode population density must be substantially higher before additional effects on potato become apparent.