Abstract
In Northern Finland (65º40'N), haulm killing is used in seed potato production primarily to regulate tuber size. The most common haulm killing method is mechanical-chemical. We studied the effects of mechanical and mechanical-chemical haulm killing methods on seed potato quality, comparing to natural haulm senescence (control). The timing of haulm killing (when no more than 5% of the crop tubers were over 50 mm in size) and the time between destruction and harvest (21–26 days) were similar to practices followed in seed-potato production. Matilda was the cultivar used. In this study, haulm killing clearly increased plant disease pressure, as black scurf (Rhizoctonia solani) could be seen in tubers whose haulm had been destroyed. Black scurf was also observed in mechanical haulm killing. The yield from naturally senesced haulms had less black scurf than the other treatments. In addition, when haulm senescence occurred naturally, crop yield and starch content were highest compared to other treatments.
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Claims 5
Claim · model-written summary
Haulm killing increased black scurf disease pressure.
- Taxon
- potato
Solanum tuberosumt0 - Treatment
- haulm killinge0
- Interactor
- Rhizoctonia solani
Rhizoctonia solanie0pathogen - Outcome
- black scurfe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“haulm killing clearly increased plant disease pressure, as black scurf (Rhizoctonia solani) could be seen in tubers whose haulm had been destroyed”
t0“Potato”
Claim · model-written summary
Black scurf was observed after mechanical haulm killing.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- mechanical haulm killinge0
- Outcome
- Black scurfe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Black scurf was also observed in mechanical haulm killing”
t0“Potato”
Claim · model-written summary
Naturally senesced haulms produced tubers with less black scurf than other treatments.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- naturally senesced haulmse0
- Outcome
- black scurfe0
- Direction
- lesse0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield from naturally senesced haulms had less black scurf than the other treatments”
t0“Potato”
Claim · model-written summary
Natural haulm senescence had the highest crop yield.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- haulm senescence occurred naturallye0
- Outcome
- crop yielde0
- Direction
- higheste0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“when haulm senescence occurred naturally, crop yield and starch content were highest compared to other treatments”
t0“Potato”
Claim · model-written summary
Natural haulm senescence had the highest starch content.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- haulm senescence occurred naturallye0
- Outcome
- starch contente0
- Direction
- higheste0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“when haulm senescence occurred naturally, crop yield and starch content were highest compared to other treatments”
t0“Potato”
The same questions in other papers
stage · yield · Solanum tuberosum (potato)Positive and negative results
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See all 13 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.