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AOBPreview published online on March 4, 2005
Annals of Botany, doi:10.1093/aob/mci108
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© The Author 2005. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For Permissions, please email: journals.permissions@oupjournals.org
Received September 8, 2004
Revised October 22, 2004
Accepted January 20, 2005

Article

Phenology of Flowering and Starch Accumulation in Grape (Vitis vinifera L.) Cuttings and Vines

G. LEBON 1, E. DUCHÊNE 2, O. BRUN 3, and C. CLÉMENT 1*

1 Laboratoire de Stress, Défenses et Reproduction des Plantes, URVVC UPRES EA 2069, Université de Reims Champagne Ardenne, UFR Sciences, Moulin de la Housse, BP 1039, F-51687 Reims Cedex 2, France
2 INRA de Colmar, Unité de Recherche Vigne et Vin, 28 rue Herrlisheim, BP 507, F-68021 Colmar, France
3 Mumm-Perrier-Jouet Vignobles et Recherches, F-51206 Epernay, France

* To whom correspondence should be addressed.
C. CLÉMENT, E-mail: christophe.clement{at}univ-reims.fr


  Abstract

• Background and Aims A reliable protocol for flowering and fruiting in cuttings was developed with the aim of (a) studying inflorescence and flower development in grapevine cuttings and field plants, and (b) assisting haploid plant production.

• Methods Inflorescence and flower development was studied in ‘Gewurztraminer’ (GW) and ‘Pinot Noir’ (PN) grape vines and cuttings grown in a glasshouse, along with variations in starch in the flowers. As there is a strong relationship between flower development and starch, the starch content of reproductive structures was estimated.

• Key Results Inflorescence and flower development were similar in the vines and cuttings with consistent differences between the two cultivars. Indeed, the ontogenesis of male and female organs is not synchronous in GW and PN, with both female and male meiosis occurring earlier in PN than in GW. Moreover, changes of starch reserves were similar in the two plant types.

• Conclusions Cuttings have a similar reproductive physiology to vines, and can be used to study grape physiology and to develop haploid plants.

Keywords: Cuttings, flowering, reproductive structures, starch, vines, Vitis vinifera L..
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