Abstract
Soaking potato (Solanum tuberosum 'Russet Burbank') tuber halves for 1 h in sodium hypochlorite (1% available chlorine) or for 20 min in a 32 mg mL −1 solution of oxamyl (24% liquid) reduced the number of root-lesion nematodes (Pratylenchus penetrans) in the peel by 92 and 88%, respectively, relative to untreated tuber halves extracted in a mist chamber for 2 wk. Treated tuber halves were grown in pots for 8 wk in the greenhouse. There was no phytotoxicity in the plants that emerged although sodium hypochlorite may have inhibited plant emergence; both treatments reduced the number of days required for plant emergence by 3–6 d. In general, both chemicals increased plant growth. Oxamyl was completely effective in preventing a nematode infestation of the soil; sodium hypochlorite was ineffective. On average, only a single specimen of P. penetrans was recovered from the oxamyl-treated root system vs. 835 in the sodium hypochlorite treatment. No P. penetrans was recovered from the oxamyl-treated original seed-piece after 8 wk whereas an average of 427 and 329 half-tuber −1 were present in those treated with water or sodium hypochlorite, respectively. The data suggest that a 20-min immersion of P. penetrans-infested potato seed pieces in oxamyl is extremely effective in preventing soil infestation by the nematode. Key words: Bleach, disinfection, potato, Pratylenchus penetrans, root-lesion nematode, Solanum tuberosum
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Claims 13
Claim · model-written summary
Sodium hypochlorite reduced peel nematodes by 92%.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- sodium hypochlorite (1% available chlorine)e0
- Interactor
- Pratylenchus penetrans
Pratylenchus penetranse0pathogen - Outcome
- number of root-lesion nematodes (Pratylenchus penetrans) in the peele0
- Direction
- reducede0
- Value
- 92e0
- Comparator
- untreated tuber halvese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soaking potato (Solanum tuberosum 'Russet Burbank') tuber halves for 1 h in sodium hypochlorite (1% available chlorine) or for 20 min in a 32 mg mL −1 solution of oxamyl (24% liquid) reduced the number of root-lesion nematodes (Pratylenchus penetrans) in the peel by 92 and 88%, respectively, relative to untreated tuber halves”
Claim · model-written summary
Oxamyl reduced peel nematodes by 88%.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- oxamyl (24% liquid)e0
- Interactor
- Pratylenchus penetransPratylenchus penetranse0pathogen
- Outcome
- number of root-lesion nematodes (Pratylenchus penetrans) in the peele0
- Direction
- reducede0
- Value
- 88%e0
- Comparator
- untreated tuber halvese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soaking potato (Solanum tuberosum 'Russet Burbank') tuber halves for 1 h in sodium hypochlorite (1% available chlorine) or for 20 min in a 32 mg mL −1 solution of oxamyl (24% liquid) reduced the number of root-lesion nematodes (Pratylenchus penetrans) in the peel by 92 and 88%, respectively, relative to untreated tuber halves”
Claim · model-written summary
Treated emerged plants showed no phytotoxicity.
- Outcome
- no phytotoxicitye0
Not reportedTaxon
Verbatim
e0“There was no phytotoxicity in the plants that emerged”
Claim · model-written summary
Sodium hypochlorite may have inhibited plant emergence.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- sodium hypochloritee0
- Outcome
- plant emergencee0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato tubers”
e0“sodium hypochlorite may have inhibited plant emergence”
Claim · model-written summary
Both chemicals reduced days to emergence by 3–6 d.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- both treatmentse0
- Outcome
- number of days required for plant emergencee0
- Direction
- reducede0
- Value
- 3–6 de0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato tubers”
e0“both treatments reduced the number of days required for plant emergence by 3–6 d”
Claim · model-written summary
Both chemicals generally increased plant growth.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- both chemicalse0
- Outcome
- plant growthe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato tubers”
e0“both chemicals increased plant growth”
Claim · model-written summary
Oxamyl prevented soil nematode infestation.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Oxamyle0
- Outcome
- nematode infestation of the soile0
- Direction
- preventinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato tubers”
e0“Oxamyl was completely effective in preventing a nematode infestation of the soil”
Claim · model-written summary
Sodium hypochlorite did not prevent soil infestation.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- sodium hypochloritee0
- Outcome
- ineffectivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato tubers”
e0“sodium hypochlorite was ineffective”
Claim · model-written summary
Oxamyl treated roots had one P. penetrans specimen on average versus 835 after sodium hypochlorite.
- Taxon
- potatoSolanum tuberosumt0
- Interactor
- P. penetransPratylenchus penetranse0pathogen
- Outcome
- P. penetranse0
- Value
- single specimene0
- Comparator
- sodium hypochlorite treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato tubers”
e0“only a single specimen of P. penetrans was recovered from the oxamyl-treated root system vs. 835 in the sodium hypochlorite treatment”
Claim · model-written summary
No P. penetrans was recovered from oxamyl treated original seed pieces after 8 weeks.
- Taxon
- potatoSolanum tuberosumt0
- Interactor
- P. penetransPratylenchus penetranse0pathogen
- Outcome
- No P. penetrans was recoverede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato tubers”
e0“No P. penetrans was recovered from the oxamyl-treated original seed-piece after 8 wk”
Claim · model-written summary
Water treated seed pieces averaged 427 nematodes per half tuber.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- watere0
- Outcome
- half-tuber −1e0
- Value
- 427e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato tubers”
e0“an average of 427 and 329 half-tuber −1 were present in those treated with water or sodium hypochlorite, respectively”
Claim · model-written summary
Sodium hypochlorite treated seed pieces averaged 329 nematodes per half tuber.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- sodium hypochloritee0
- Outcome
- half-tuber −1e0
- Value
- 329 half-tuber −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato tubers”
e0“an average of 427 and 329 half-tuber −1 were present in those treated with water or sodium hypochlorite, respectively”
Claim · model-written summary
The authors conclude oxamyl immersion effectively prevents soil infestation.
- Taxon
- potatoSolanum tuberosume0
- Outcome
- 20-min immersion of P. penetrans-infested potato seed pieces in oxamyle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a 20-min immersion of P. penetrans-infested potato seed pieces in oxamyl is extremely effective in preventing soil infestation by the nematode”
The same questions in other papers
oxamyl · pest · Solanum tuberosum (potato)Positive and negative results
7 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
5 papers more in this group
See all 9 papers →oxamyl · Pratylenchus penetrans · Solanum tuberosum (potato)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
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.