Abstract
Effects of three sterol-demethylation inhibiting (DMI) fungicides and a contact fungicide were compared over two years at each of two locations to determine if fungicide treatments had differential effects on productivity, fruit size and shape, or gross returns for `Empire' apples ( Malus × domestica Borkh.). Treatments were applied four to five times per year during the primary apple scab season. Effects of treatments were assessed by comparing fruit set efficiencies, number of fruit per tree, total harvested fruit weight, and fruit length: diameter ratios at harvest. No significant differences were noted among individual treatments in any of the four trials. However, when treatments were contrasted by grouping individual treatments, significantly larger fruit size was noted for triflumizole treatments vs. combined fenarimol and myclobutanil treatments in one of the four trials and for captan or mancozeb compared to fenarimol and myclobutanil treatments in two trials. None of the DMI fungicides compared in these trials had any consistent adverse affect on fruit size, total yield, or estimated gross return per hectare. We conclude that the plant growth regulator effects of DMI fungicides are inconsistent and are unlikely to have significant economic impact on commercial apple production.
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Claims 5
Claim · model-written summary
No significant differences in fruit set, fruit number, harvested weight or fruit length:diameter ratio were found among individual fungicide treatments in any of the four trials.
- Taxon
- Apple
Malus domesticat0 - Treatment
- sterol-demethylation inhibiting (DMI) fungicidese0
- Outcome
- fruit set efficiencies, number of fruit per tree, total harvested fruit weight, and fruit length: diameter ratiose2
- Direction
- no_changeinferrede1
- Comparator
- individual treatmentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Sterol-demethylation Inhibiting Fungicides on Apple Fruit Set”
e0“Effects of three sterol-demethylation inhibiting (DMI) fungicides and a contact fungicide were compared over two years at each of two locations”
e1“No significant differences were noted among individual treatments in any of the four trials”
e2“Effects of treatments were assessed by comparing fruit set efficiencies, number of fruit per tree, total harvested fruit weight, and fruit length: diameter ratios at harvest”
Claim · model-written summary
Triflumizole treatments gave significantly larger fruit size than combined fenarimol and myclobutanil treatments in one of the four trials.
- Taxon
- AppleMalus domesticat0
- Treatment
- triflumizole treatmentse3
- Outcome
- fruit sizee3
- Direction
- largere3
- Qualifier
- in one of the four trialse3
- Comparator
- combined fenarimol and myclobutanil treatmentse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Sterol-demethylation Inhibiting Fungicides on Apple Fruit Set”
e3“significantly larger fruit size was noted for triflumizole treatments vs. combined fenarimol and myclobutanil treatments in one of the four trials and for captan or mancozeb compared to fenarimol and myclobutanil treatments in two trials”
Claim · model-written summary
Captan or mancozeb gave significantly larger fruit size than fenarimol and myclobutanil treatments in two trials.
- Taxon
- AppleMalus domesticat0
- Treatment
- captan or mancozebe3
- Outcome
- fruit sizee3
- Direction
- largere3
- Qualifier
- in two trialse3
- Comparator
- fenarimol and myclobutanil treatmentse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Sterol-demethylation Inhibiting Fungicides on Apple Fruit Set”
e3“significantly larger fruit size was noted for triflumizole treatments vs. combined fenarimol and myclobutanil treatments in one of the four trials and for captan or mancozeb compared to fenarimol and myclobutanil treatments in two trials”
Claim · model-written summary
No DMI fungicide had a consistent adverse effect on fruit size, total yield or estimated gross return per hectare.
- Taxon
- AppleMalus domesticat0
- Treatment
- DMI fungicidese4
- Outcome
- fruit size, total yield, or estimated gross return per hectaree4
- Direction
- no_changeinferrede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Sterol-demethylation Inhibiting Fungicides on Apple Fruit Set”
e4“None of the DMI fungicides compared in these trials had any consistent adverse affect on fruit size, total yield, or estimated gross return per hectare”
Claim · model-written summary
The plant growth regulator effects of DMI fungicides are inconsistent and unlikely to have significant economic impact on commercial apple production.
- Taxon
- AppleMalus domesticat0
- Outcome
- plant growth regulator effects of DMI fungicidese5
- Qualifier
- inconsistente5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Sterol-demethylation Inhibiting Fungicides on Apple Fruit Set”
e5“We conclude that the plant growth regulator effects of DMI fungicides are inconsistent and are unlikely to have significant economic impact on commercial apple production”
The same questions in other papers
captan · yield · Malus domestica (apple)Positive and negative results
4 in the opposite direction
- no effect
- negative
- negative
1 paper more in this group
See all 5 papers →fungicide · yield · Malus domestica (apple)Positive and negative results
2 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
2 papers more in this group
See all 6 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.