Gibberellic acid causes earlier flowering and synchronizes fruit ripening of coffee

Ursula K Schuch, Leslie H. Fuchigami, Mike A. Nagao

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The effect of 100 mgl-1 gibberellic acid (GA3) on flowering and fruit ripening synchrony, fruit set, fruit fresh weight, and vegetative growth were studied for different size classes of coffee (Coffea arabica L. cv. Guatemalan) flower buds. Flower buds that were > 4 mm, but not developed to the candle stage at the time of GA3 treatment, reached anthesis 20 days earlier than the controls, and their development was independent of precipitation, unlike the controls. Fruit from buds that were treated with GA3 at the candle stage showed earlier and more synchronous ripening than the control, although no differences in flowering were found during anthesis. Buds that were smaller than 4 mm at the time of treatment did not respond to GA3 applications. Treatment with GA3 did not affect fruit set, fresh weight of fruits, or vegetative shoot growth.

Original languageEnglish (US)
Pages (from-to)59-64
Number of pages6
JournalPlant Growth Regulation
Volume9
Issue number1
DOIs
StatePublished - Feb 1990
Externally publishedYes

Fingerprint

Coffee
gibberellic acid
Fruit
ripening
buds
flowering
fruits
fruit set
Coffea arabica
raw fruit
Coffea
vegetative growth
Weights and Measures
Growth
shoots

Keywords

  • bud size
  • Coffea arabica
  • flowering
  • fruit set
  • gibberellin
  • synchronization

ASJC Scopus subject areas

  • Plant Science

Cite this

Gibberellic acid causes earlier flowering and synchronizes fruit ripening of coffee. / Schuch, Ursula K; Fuchigami, Leslie H.; Nagao, Mike A.

In: Plant Growth Regulation, Vol. 9, No. 1, 02.1990, p. 59-64.

Research output: Contribution to journalArticle

Schuch, Ursula K ; Fuchigami, Leslie H. ; Nagao, Mike A. / Gibberellic acid causes earlier flowering and synchronizes fruit ripening of coffee. In: Plant Growth Regulation. 1990 ; Vol. 9, No. 1. pp. 59-64.
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