graft

Lemma

graft

Etichetta di dominio

EN

Etichetta grammaticale

n.

Definizione

A shoot or scion inserted into a slit made in another plant or stock, from which the shoot receives sap and on which it grows. 1

Nota

The uniting of the scion with the rootstock is achieved by a slow growth process: a mass of undifferentiated cells, the callus, develops at each cut edge of the respective cambiums (zones of dividing cells), so it is important to position the two cambiums opposite each other and close together. Once the callus is well established, a plane of cells develops between the cambiums of the scion and the rootstock as a new, linking cambium. The new continuous cambium then cuts off new phloem cells on the outside, adding to the bark, and new xylem cells on the inside, adding to the wood. Thereafter, the scion piece is part of the whole plant vascular system.
A number of factors determine success or failure in grafting, in addition to the skill involved in cutting and matching of cambiums. The first is that the graft needs specific environmental conditions such as warm temperatures (24-30 °C / 75-86 °F) and high humidities ( 90-100 per cent) around the union. 2

Contesto

Particular forms of graft include cleft grafting, notch crafting, whip graft. 3

Trascrizione fonetica

[ɡrɑ:ft] 4

Sinonimi e Antonimi

ND

Abbreviazioni

ND

Etimologia

ME. graffe, graff, fr. OF. grafe, a collateral form of grefe, “pencil”; “a shoot for grafting”, fr. L. graphium, “a writing style”, fr. Gk. γραφίον, γραφείον. 5

Etichetta di paese
ND
Ente

Università degli Studi di Genova - Facoltà di Lingue e letterature straniere - Corso di laurea Teorie e tecniche della mediazione interlinguistica

Data della scheda
Wed Mar 4 00:00:00 2009
Autore

Karen Rossi rev. Gerbaudo

Fonti

1 : Brown L., The new shorter Oxford English Dictionary. New York, Clarendon Press, 1993, 5, p. 1126.

2 : Robinson J., The Oxford Companion of wine., New York, Oxford University Press, 1994, 1, p. 456.

3 : Robinson J., The Oxford Companion of wine. New York, Oxford University Press, 1994, 1, p. 456.

4 : Brown L., The new shorter Oxford English Dictionary. New York, Clarendon Press, 1993, 5, p. 1126.

5 : Klein E., A comprehensive etymological Dictionary of the English Language. Amsterdam, Elsevier Publishing Company, 1966, 1, p. 673.

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