Timing of floral evocation in the grapevine (Vitis Vinifera L. cv. Chardonnay) is identified by cyto-histological changes in the vegetative shoot apical meristem

Peter Noyce, C.E Offler, Christopher Steel, C.P.L Grof

Research output: Contribution to journalArticle

Abstract

The grapevine floral development pathway commences in early spring with floral evocation in the shoot apical meristem (SAM) of the sylleptic latent bud. Grapevine floral evocation is defined as the irreversible biochemical and cellular changes in the SAM, which commit the plant to the subsequent formation of flowers. These changes are induced by non‐leaf derived stimuli acting directly on the SAM. The timing of floral evocation, however, between budburst and floral initiation, is unknown. The aims of this study were: (i) to establish a precise timing for floral evocation; and (ii) to identify reliable reproducible markers for floral evocation.
Original languageEnglish
Pages (from-to)252-265
Number of pages13
JournalAustralian Journal of Grape and Wine Research
Volume25
Issue number2
Early online date28 Mar 2019
DOIs
Publication statusPublished - Apr 2019

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