Abstract
Abstract The crop load of European plums must be adjusted to achieve high quality with adequate size and skin color in order to attend market requirements. The present study had the objective to investigate the effects of chemical and mechanical thinning, applied isolated and in combination of both, at different phenological stages of Katinka plum growing in Southern Germany. The following thinners were tested: mechanical thinning, chemical thinning with Ammoniumthiosulfate - ATS, Ethephon, Prohexadione-Calcium and Gibberellin. Mechanical thinning treatment isolated or associated with ATS. Significantly increased fruit drop and reduced the yield. It also, increased fruit size and fruit weight when compared to the control plants. Also Ethephon increased fruit drop and fruit size when compared to the control plants. Among to other chemical treatments, no positive effects were observed for fruit thinning when compared to the control plants.
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Claims 5
Claim · model-written summary
Mechanical thinning significantly increased fruit drop in plums compared with control plants.
- Taxon
- plums
Prunus domesticat0 - Treatment
- Mechanical thinninge1
- Outcome
- fruit drope1
- Direction
- increasede1
- Comparator
- control plantse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Mechanical thinning treatment isolated or associated with ATS. Significantly increased fruit drop and reduced the yield”
e2“It also, increased fruit size and fruit weight when compared to the control plants”
t0“Manage of crop load to improve fruit quality in plums”
Claim · model-written summary
Mechanical thinning reduced plum yield.
- Taxon
- plumsPrunus domesticat0
- Treatment
- Mechanical thinninge1
- Outcome
- yielde1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Mechanical thinning treatment isolated or associated with ATS. Significantly increased fruit drop and reduced the yield”
t0“Manage of crop load to improve fruit quality in plums”
Claim · model-written summary
Mechanical thinning increased fruit size and fruit weight of plums compared with control plants.
- Taxon
- plumsPrunus domesticat0
- Treatment
- Mechanical thinninge1
- Outcome
- fruit size and fruit weighte2
- Direction
- increasede2
- Comparator
- control plantse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Mechanical thinning treatment isolated or associated with ATS”
e2“It also, increased fruit size and fruit weight when compared to the control plants”
t0“Manage of crop load to improve fruit quality in plums”
Claim · model-written summary
Ethephon increased fruit drop and fruit size of plums compared with control plants.
- Taxon
- plumsPrunus domesticat0
- Treatment
- Ethephone3
- Outcome
- fruit drop and fruit sizee3
- Direction
- increasede3
- Comparator
- control plantse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Also Ethephon increased fruit drop and fruit size when compared to the control plants”
t0“Manage of crop load to improve fruit quality in plums”
Claim · model-written summary
Other chemical thinners (ATS, prohexadione-calcium, gibberellin) gave no positive fruit thinning effect compared with control plants.
- Taxon
- plumsPrunus domesticat0
- Treatment
- other chemical treatmentse4
- Outcome
- fruit thinninge4
- Direction
- no positive effectse4
- Comparator
- control plantse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Among to other chemical treatments, no positive effects were observed for fruit thinning when compared to the control plants”
t0“Manage of crop load to improve fruit quality in plums”
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See all 17 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.