Asymmetric growth of citrus fruit peel induced by localized application of gibberellins in lanolin pastes

Eliezer E. Goldschmidt*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Lanolin pastes containing 0.02-1.0% gibberellin A4+7(GA4+7) were applied to one side of developing citrus fruitlets and caused thickening of the peel in the proximity of the treated zone. Enlargement of albedo (= the white portion of citrus peel) cells was involved, as revealed by scanning electron microscopy. The flavedo (= the coloured portion of the peel) and the pulp were not affected by the hormone. Gibberellin A3 was slightly less active than GA4+7. Cultivars with a naturally thick peel, such as 'Marsh' grapefruit (Citrus paradisi Macf.) and 'Shamouti' orange (Citrus sinensis (L.) Osbeck) responded more strongly than thin-peel cultivars. The role of gibberellins in the differential growth of citrus fruit tissues is discussed.

Original languageEnglish
Pages (from-to)29-35
Number of pages7
JournalScientia Horticulturae
Volume21
Issue number1
DOIs
StatePublished - Sep 1983

Keywords

  • Citrus
  • gibberellins

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