Abstract
Summary Hot‐water drench treatments were evaluated for disinfesting roots of potted anthurium Anthurium andraeanum of the burrowing nematode Radopholus similis . A continuous drench of roots and media in pots with 50°C water for 5 to 20 min eliminated or reduced nematode populations to < 1 g −1 of dry root. A second hot water drench, 2 months after the first drenching, tended to increase the efficacy of the heat treatment. A few survivors persisted in the roots and/or stems of a few plants 2 to 4 months after heat treatment. Non‐treatment of the shoots and possible migration from stem to root tissues are probable causes of nematode survival. Drenching potting media and roots in pot were as effective against R. similis in the roots as hot water dipping bare‐rooted plants. Plant response to hot‐water drenching varied among cultivars, but most exhibited tolerance to the heat treatments. Visual inspection of the plants showed little difference between treated and untreated plants in the heat tolerant cultivars. However, all heat‐treated ‘Marian Seefurth’ plants, especially hot water‐dipped bare‐rooted plants, appeared to suffer some degree of growth reduction as measured by lower root and stem dry weights when compared to untreated plants 3 months after treatment. Conditioning anthurium plants with hot water or hot air prior to hot water drenching did not benefit plant quality when compared to unconditioned, heat‐treated plants.
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Claims 8
Claim · model-written summary
A 50°C drench for 5 to 20 minutes eliminated or reduced nematodes below one per gram of dry root.
- Taxon
- Anthurium andraeanum
Anthurium andraeanumt0 - Treatment
- 50°C water for 5 to 20 mine0
- Interactor
- Radopholus similis
Radopholus similist0pathogen - Outcome
- nematode populationse0
- Direction
- eliminated or reducede0
- Value
- < 1 g −1 of dry roote0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A continuous drench of roots and media in pots with 50°C water for 5 to 20 min eliminated or reduced nematode populations to < 1 g −1 of dry root”
t0“Anthurium andraeanum plants against the burrowing nematode Radopholus similis”
Claim · model-written summary
A second drench tended to improve efficacy.
- Taxon
- Anthurium andraeanumAnthurium andraeanumt0
- Treatment
- A second hot water drenche0
- Interactor
- Radopholus similisRadopholus similist0pathogen
- Outcome
- efficacy of the heat treatmente0
- Direction
- increasee0
- Comparator
- the first drenchinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A second hot water drench, 2 months after the first drenching, tended to increase the efficacy of the heat treatment”
t0“Anthurium andraeanum plants against the burrowing nematode Radopholus similis”
Claim · model-written summary
A few nematodes survived in roots or stems 2 to 4 months after treatment.
- Taxon
- Anthurium andraeanumAnthurium andraeanumt0
- Interactor
- Radopholus similisRadopholus similist0pathogen
- Outcome
- survivors persisted in the roots and/or stemse0
- Qualifier
- 2 to 4 months after heat treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A few survivors persisted in the roots and/or stems of a few plants 2 to 4 months after heat treatment”
t0“Anthurium andraeanum plants against the burrowing nematode Radopholus similis”
Claim · model-written summary
Pot drenching and bare-root dipping were equally effective against root nematodes.
- Taxon
- Anthurium andraeanumAnthurium andraeanumt0
- Treatment
- Drenching potting media and roots in pote0
- Interactor
- R. similisRadopholus similise0pathogen
- Outcome
- R. similis in the rootse0
- Direction
- as effectivee0
- Comparator
- hot water dipping bare‐rooted plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drenching potting media and roots in pot were as effective against R. similis in the roots as hot water dipping bare‐rooted plants”
t0“Anthurium andraeanum”
Claim · model-written summary
Plant heat tolerance varied among cultivars, with most tolerant.
- Taxon
- Anthurium andraeanumAnthurium andraeanumt0
- Outcome
- most exhibited tolerance to the heat treatmentse0
- Qualifier
- varied among cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant response to hot‐water drenching varied among cultivars, but most exhibited tolerance to the heat treatments”
t0“Anthurium andraeanum”
Claim · model-written summary
Heat-tolerant cultivars showed little visible difference after treatment.
- Taxon
- Anthurium andraeanumAnthurium andraeanumt0
- Treatment
- treatede0
- Outcome
- Visual inspection of the plantse0
- Direction
- little differencee0
- Comparator
- untreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Visual inspection of the plants showed little difference between treated and untreated plants in the heat tolerant cultivars”
t0“Anthurium andraeanum”
Claim · model-written summary
Heat-treated Marian Seefurth plants had lower root and stem dry weights after three months.
- Taxon
- Anthurium andraeanumAnthurium andraeanumt0
- Material
- ‘Marian Seefurth’e0
- Treatment
- heat‐treatede0
- Outcome
- root and stem dry weightse0
- Direction
- lowere0
- Qualifier
- 3 months after treatmente0
- Comparator
- untreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all heat‐treated ‘Marian Seefurth’ plants, especially hot water‐dipped bare‐rooted plants, appeared to suffer some degree of growth reduction as measured by lower root and stem dry weights when compared to untreated plants 3 months after treatment”
t0“Anthurium andraeanum”
Claim · model-written summary
Hot-water or hot-air conditioning did not improve plant quality after drenching.
- Treatment
- Conditioning anthurium plants with hot water or hot aire0
- Outcome
- plant qualitye0
- Direction
- did not benefite0
- Comparator
- unconditioned, heat‐treated plantse0
AnthuriumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Conditioning anthurium plants with hot water or hot air prior to hot water drenching did not benefit plant quality when compared to unconditioned, heat‐treated plants”
The same questions in other papers
heat · growth · Anthurium andraeanum (oilcloth-flower)Positive and negative results
1 in the opposite direction
- positive
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.