1-aminocyclopropane carboxylic acid shows promise as a chemical thinner for apple

James R. Schupp, Thomas M. Kon, H. Edwin Winzeler

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The objective of these studies was to evaluate the efficacy of several concentrations of 1-aminocyclopropane carboxylic acid (ACC) for thinning apple at the standard growth stage for chemical thinning timing and a late thinning growth stage. ACC was applied at concentrations of 0, 100, 300, or 500 mg·LL-1 to 'Golden Delicious'/Bud.9 apple trees at 10 mm or 20 mm fruit diameter. Treatments were applied to the point of drip to individual whole trees in a completely randomized design with five (2010) and six (2011) replications. When ACC was applied at 20 mm, there was a linear dose relationship between concentration and fruit thinning in both years. ACC was ineffective at 10 mm. The naturally occurring compound ACC shows potential for use as a reliable late chemical thinner for apple.

Original languageEnglish (US)
Pages (from-to)1308-1311
Number of pages4
JournalHortScience
Volume47
Issue number9
StatePublished - Sep 28 2012

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1-aminocyclopropane-1-carboxylic acid
apples
thinning (plants)
developmental stages
fruits
dosage

All Science Journal Classification (ASJC) codes

  • Horticulture

Cite this

Schupp, James R. ; Kon, Thomas M. ; Edwin Winzeler, H. / 1-aminocyclopropane carboxylic acid shows promise as a chemical thinner for apple. In: HortScience. 2012 ; Vol. 47, No. 9. pp. 1308-1311.
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Schupp, JR, Kon, TM & Edwin Winzeler, H 2012, '1-aminocyclopropane carboxylic acid shows promise as a chemical thinner for apple', HortScience, vol. 47, no. 9, pp. 1308-1311.

1-aminocyclopropane carboxylic acid shows promise as a chemical thinner for apple. / Schupp, James R.; Kon, Thomas M.; Edwin Winzeler, H.

In: HortScience, Vol. 47, No. 9, 28.09.2012, p. 1308-1311.

Research output: Contribution to journalArticle

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