Abstract
SYNOPSIS Immersion of roots of Pinus radiata D. Don seedlings in water at 48 and 50° C for five, 10 and 15 minutes eradicated Phytophthora but caused a significant decrease in biomass production two years after field planting. Wheat grains infected with Phytophthora cinnamomi were immersed in water at temperatures from 38 to 50° C at 1°C intervals for periods from one to 30 minutes. The temperature/time relationship was negatively linear, requiring 25 minutes at 41°C and 5 minutes at 45°C for the complete elimination of the fungus. The roots of Phytophthora-infected Pinus radiata seedlings were treated with the minimum time/temperature combinations which eradicated the fungus from wheat grains. Root growth capacity (RGC) and mycorrhizal initiation of seedlings treated at 41°C for 25 minutes did not differ significantly from the control, but the higher temperature treatments reduced it significantly. Phytophthora was completely eliminated at 41°C for 25 minutes.
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Claims 6
Claim · model-written summary
Hot-water immersion of Pinus radiata roots at 48 and 50° C for 5 to 15 minutes eradicated Phytophthora.
- Taxon
- Pinus radiata
Pinus radiatae1 - Treatment
- in water at 48 and 50° C for five, 10 and 15 minutese1
- Interactor
- Phytophthora
Phytophthorae1pathogen - Outcome
- eradicated Phytophthorae1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Immersion of roots of Pinus radiata D. Don seedlings in water at 48 and 50° C for five, 10 and 15 minutes eradicated Phytophthora but caused a significant decrease in biomass production two years after field planting”
Claim · model-written summary
Hot-water immersion of Pinus radiata roots at 48 and 50° C for 5 to 15 minutes significantly decreased biomass production two years after field planting.
- Taxon
- Pinus radiataPinus radiatae1
- Treatment
- in water at 48 and 50° C for five, 10 and 15 minutese1
- Outcome
- biomass productione1
- Direction
- decreasee1
- Qualifier
- two years after field plantinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Immersion of roots of Pinus radiata D. Don seedlings in water at 48 and 50° C for five, 10 and 15 minutes eradicated Phytophthora but caused a significant decrease in biomass production two years after field planting”
Claim · model-written summary
In infected wheat grains, the time needed to eliminate Phytophthora cinnamomi was negatively related to immersion temperature.
- Taxon
- Wheat
Triticum aestivume2 - Treatment
- temperaturee3
- Interactor
- Phytophthora cinnamomi
Phytophthora cinnamomie2pathogen - Outcome
- temperature/time relationshipe3
- Direction
- decreaseinferrede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Wheat grains infected with Phytophthora cinnamomi were immersed in water at temperatures from 38 to 50° C at 1°C intervals for periods from one to 30 minutes”
e3“The temperature/time relationship was negatively linear, requiring 25 minutes at 41°C and 5 minutes at 45°C for the complete elimination of the fungus”
Claim · model-written summary
Immersion of infected wheat grains for 25 minutes at 41°C and 5 minutes at 45°C completely eliminated Phytophthora cinnamomi.
- Taxon
- WheatTriticum aestivume2
- Treatment
- 25 minutes at 41°C and 5 minutes at 45°Ce3
- Interactor
- Phytophthora cinnamomiPhytophthora cinnamomie2pathogen
- Outcome
- complete elimination of the funguse3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Wheat grains infected with Phytophthora cinnamomi were immersed in water at temperatures from 38 to 50° C at 1°C intervals for periods from one to 30 minutes”
e3“The temperature/time relationship was negatively linear, requiring 25 minutes at 41°C and 5 minutes at 45°C for the complete elimination of the fungus”
Claim · model-written summary
Immersion at 41°C for 25 minutes did not significantly change root growth capacity or mycorrhizal initiation of Pinus radiata seedlings compared with the control.
- Taxon
- Pinus radiataPinus radiatae1
- Treatment
- 41°C for 25 minutese4
- Outcome
- Root growth capacity (RGC) and mycorrhizal initiatione4
- Direction
- did not differe4
- Comparator
- controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Immersion of roots of Pinus radiata D. Don seedlings in water at 48 and 50° C for five, 10 and 15 minutes eradicated Phytophthora but caused a significant decrease in biomass production two years after field planting”
e4“Root growth capacity (RGC) and mycorrhizal initiation of seedlings treated at 41°C for 25 minutes did not differ significantly from the control”
Claim · model-written summary
Higher temperature immersion treatments significantly reduced root growth capacity of Pinus radiata seedlings.
- Taxon
- Pinus radiataPinus radiatae1
- Treatment
- higher temperature treatmentse5
- Outcome
- Root growth capacity (RGC)e4
- Direction
- reducede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Immersion of roots of Pinus radiata D. Don seedlings in water at 48 and 50° C for five, 10 and 15 minutes eradicated Phytophthora but caused a significant decrease in biomass production two years after field planting”
e4“Root growth capacity (RGC) and mycorrhizal initiation of seedlings treated at 41°C for 25 minutes did not differ significantly from the control”
e5“but the higher temperature treatments reduced it significantly”