Abstract
SummaryIn a fruit thinning trial, conducted at the Grove Research Station in Southern Tasmania on ‘Red Delicious’ apple trees, an unsprayed control, hand-thinning and a naphthalene acetic acid (NAA) spray were compared with ethephon alone, ethephon followed by NAA, and NAA followed by ethephon spray combinations. All trees treated with NAA were over-thinned, whether sprayed with NAA alone or in combination with ethephon. Full-bloom (FB) ethephon treatments at concentrations of 400 and 800 ppm thinned most acceptably. Ethephon sprays of 100 and 200 ppm under-thinned and the combination sprays over-thinned. Mean fruit weight was excellent throughout the trial, with the target size being approached even in the unthinned controls. Some thinning treatments produced fruit significantly larger than the controls. Fruit was reddened when thinned by NAA alone or in combination with ethephon, but not as consistently by ethephon alone. There was no significant yellowing of fruit caused by any ethephon, NAA or combination sprays when compared to hand-thinned fruit. Mean shoot length was unaffected by any treatments. The ethephon-NAA and NAA-ethephon combinations used in this trial can so easily over-thin ‘Red Delicious’ in Tasmania that they cannot be recommended. Ethephon used alone was the safest and most predictable alternative to hand thinning.
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Claims 11
Claim · model-written summary
All Red Delicious apple trees treated with NAA, alone or with ethephon, were over-thinned at the Grove Research Station in Tasmania.
- Taxon
- apple
Malus domesticat0 - Material
- Red Delicioust0
- Treatment
- NAAe1
- Outcome
- over-thinnede1
- Direction
- over-thinnede1
- Setting
- Grove Research Station in Southern Tasmaniae2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Spray thinning strategies for ‘Red Delicious’ apple using naphthalene acetic acid and ethephon”
e1“All trees treated with NAA were over-thinned, whether sprayed with NAA alone or in combination with ethephon”
e2“conducted at the Grove Research Station in Southern Tasmania”
Claim · model-written summary
Full-bloom ethephon at 400 and 800 ppm thinned Red Delicious apple most acceptably.
- Taxon
- appleMalus domesticat0
- Material
- Red Delicioust0
- Treatment
- Full-bloom (FB) ethephon treatments at concentrations of 400 and 800 ppme2
- Outcome
- thinned most acceptablye2
- Direction
- thinned most acceptablye2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Spray thinning strategies for ‘Red Delicious’ apple using naphthalene acetic acid and ethephon”
e2“Full-bloom (FB) ethephon treatments at concentrations of 400 and 800 ppm thinned most acceptably”
Claim · model-written summary
Ethephon sprays of 100 and 200 ppm under-thinned Red Delicious apple.
- Taxon
- appleMalus domesticat0
- Material
- Red Delicioust0
- Treatment
- Ethephon sprays of 100 and 200 ppme3
- Outcome
- under-thinnede3
- Direction
- under-thinnede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Spray thinning strategies for ‘Red Delicious’ apple using naphthalene acetic acid and ethephon”
e3“Ethephon sprays of 100 and 200 ppm under-thinned”
Claim · model-written summary
Mean fruit weight of Red Delicious apple was excellent throughout the trial, approaching the target size even in unthinned controls.
- Taxon
- appleMalus domesticat0
- Organ / stage
- fruite4
- Outcome
- Mean fruit weighte4
- Qualifier
- with the target size being approached even in the unthinned controlse4
- Comparator
- unthinned controlse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Spray thinning strategies for ‘Red Delicious’ apple using naphthalene acetic acid and ethephon”
e4“Mean fruit weight was excellent throughout the trial, with the target size being approached even in the unthinned controls”
Claim · model-written summary
Some thinning treatments produced fruit significantly larger than the controls.
- Taxon
- appleMalus domesticat0
- Organ / stage
- fruite5
- Treatment
- Some thinning treatmentse5
- Outcome
- fruite5
- Direction
- significantly largere5
- Comparator
- the controlse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Spray thinning strategies for ‘Red Delicious’ apple using naphthalene acetic acid and ethephon”
e5“Some thinning treatments produced fruit significantly larger than the controls”
Claim · model-written summary
Fruit was reddened when thinned by NAA alone or with ethephon.
- Taxon
- appleMalus domesticat0
- Organ / stage
- Fruite6
- Treatment
- NAA alone or in combination with ethephone6
- Outcome
- Fruite6
- Direction
- reddenede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Spray thinning strategies for ‘Red Delicious’ apple using naphthalene acetic acid and ethephon”
e6“Fruit was reddened when thinned by NAA alone or in combination with ethephon, but not as consistently by ethephon alone”
Claim · model-written summary
Ethephon alone reddened fruit less consistently than NAA-based thinning.
- Taxon
- appleMalus domesticat0
- Organ / stage
- Fruite6
- Treatment
- ethephon alonee6
- Outcome
- Fruite6
- Direction
- not as consistentlye6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Spray thinning strategies for ‘Red Delicious’ apple using naphthalene acetic acid and ethephon”
e6“Fruit was reddened when thinned by NAA alone or in combination with ethephon, but not as consistently by ethephon alone”
Claim · model-written summary
Ethephon, NAA or combination sprays caused no significant yellowing of fruit compared with hand-thinned fruit.
- Taxon
- appleMalus domesticat0
- Treatment
- ethephon, NAA or combination sprayse7
- Outcome
- yellowing of fruite7
- Direction
- no_changeinferrede7
- Comparator
- hand-thinned fruite7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Spray thinning strategies for ‘Red Delicious’ apple using naphthalene acetic acid and ethephon”
e7“There was no significant yellowing of fruit caused by any ethephon, NAA or combination sprays when compared to hand-thinned fruit”
Claim · model-written summary
No thinning treatment affected mean shoot length of Red Delicious apple.
- Taxon
- appleMalus domesticat0
- Treatment
- any treatmentse1
- Outcome
- Mean shoot lengthe1
- Direction
- no_changeinferrede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Spray thinning strategies for ‘Red Delicious’ apple using naphthalene acetic acid and ethephon”
e1“Mean shoot length was unaffected by any treatments”
Claim · model-written summary
The ethephon-NAA and NAA-ethephon combinations should not be recommended for thinning Red Delicious apple in Tasmania.
- Taxon
- appleMalus domesticat0
- Outcome
- ethephon-NAA and NAA-ethephon combinationse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Spray thinning strategies for ‘Red Delicious’ apple using naphthalene acetic acid and ethephon”
e1“The ethephon-NAA and NAA-ethephon combinations used in this trial can so easily over-thin ‘Red Delicious’ in Tasmania that they cannot be recommended”
Claim · model-written summary
Ethephon used alone is the safest and most predictable alternative to hand thinning of apple.
- Taxon
- appleMalus domesticat0
- Outcome
- Ethephon used alonee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Spray thinning strategies for ‘Red Delicious’ apple using naphthalene acetic acid and ethephon”
e1“Ethephon used alone was the safest and most predictable alternative to hand thinning”
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