pollination

Lemma

pollination

Etichetta di dominio

EN

Etichetta grammaticale

n.

Definizione

The transfer of pollen from male to female reproductive organs in seed plants. 1

Nota

Like many other organisms, grapes reproduce sexually. In other words, each seedling is a unique combination of the genes from a female and the genes from a male. Pollen from a male fertilizes the female ovary, and a seed develops. Depending on the individual vine, flowers might be female, male, or hermaphroditic (also known as "perfect", which means that each flower contains both male and female structures).
By far, the majority of cultivated varieties are hermaphroditic. Because fruit does not result without fertilization, hermaphroditic vines are preferred because they are capable of fertilizing themselves, and every vine planted is capable of bearing fruit.
[…] Pollination occurs when pollen lands on the female parts of a flower. Each pollen grain grows a long tube towards the eggs within the ovary, and sperm cells move down this tube. 2

Contesto

In grapevines, pollination appears to happen as a result of self-pollination of nearby flowers aided by some insects, although some pollination occurs before calyptra have fallen. 3

Trascrizione fonetica

UK [ˌpɒlɨˈneɪʃn], US [ˌpɑlɘˈneɪʃ(ɘ)n] 4

Sinonimi e Antonimi
ND
Abbreviazioni
ND
Etimologia

1875, from Fr. pollination, formed 1812 from pollin-, stem of L. pollen. 5

Etichetta di paese
ND
Ente

Università degli Studi di Genova, Facoltà di Lingue e Letterature Straniere, Corso di Laurea in Teorie e Tecniche della Mediazione Interlinguistica

Data della scheda
Tue Sep 16 00:00:00 2008
Autore

Laura Gaggero, rev. Chiara Barbagianni

Fonti

1 : «www.oed.com», (23/07/2008)

2 : «http://www.nysaes.cornell.edu/hort/faculty/reisch/breeding/crossing1.html», (04/09/2008)

3 : Robinson J., The Oxford Companion to WINE, , Oxford, Oxford University Press, 1994, p. 741.

4 : «http://www.oed.com/view/Entry/147450?redirectedFrom=pomace#eid», (23/07/2008)

5 : «http://www.etymonline.com/index.php?search=pollination&searchmode=none», (17/11/2011)

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