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Qu'est-ce (qui) est cultivated$18071$ - définition
PLANT THAT HAS BEEN DELIBERATELY ALTERED OR SELECTED BY HUMANS; RESULT OF ARTIFICIAL SELECTION; MAN-MADE OR ANTHROPOGENIC PLANTS
Cultigens; Cultivated species
Cultivar
![''[[Osteospermum]]'' 'Pink Whirls' <br /> A cultivar selected for its intriguing and colourful flowers}}](https://commons.wikimedia.org/wiki/Special:FilePath/African daisy (Osteospermum sp. 'Pink Whirls').jpg?width=200 "''[[Osteospermum]]'' 'Pink Whirls' <br /> A cultivar selected for its intriguing and colourful flowers}}")
![wheats]] according to the [[biological species concept]]. Many different cultivars have been created within this cultigen. Many other cultigens are not considered to be distinct species, and can be denominated otherwise.](https://commons.wikimedia.org/wiki/Special:FilePath/Triticum aestivum, Gewone tarwe.jpg?width=200 "wheats]] according to the [[biological species concept]]. Many different cultivars have been created within this cultigen. Many other cultigens are not considered to be distinct species, and can be denominated otherwise.")
PLANT OR GROUPING OF PLANTS SELECTED FOR DESIRABLE CHARACTERISTICS
Cultivars; Cultivated variety; Cultivated varieties; Cultivar name; Selling name; Marketing name; Trade designation; Trade designations; Selling names
A cultivar is a type of plant that people have bred for desired traits, which are reproduced in each new generation by a method such as grafting, tissue culture, or carefully controlled seed production. Most cultivars arise from purposeful human manipulation, but some originate from wild plants that have distinctive characteristics.
cultigen
['k?lt?d?(?)n]
¦ noun Botany a plant species or variety known only in cultivation, especially one with no known wild ancestor.
Origin
early 20th cent.: from cultivated + -gen.
Nicotiana tabacum
 in a field in Intercourse, Pennsylvania..jpg?width=200 "File:Patch of Tobacco (Nicotiana tabacum ) in a field in Intercourse, Pennsylvania..jpg")
SPECIES OF PLANT
Orinoco tobacco; Cultivated tobacco; Common Tobacco; Cultivated Tobacco; Common tobacco; Tabanone; Megastigmatrienone
Nicotiana tabacum, or cultivated tobacco, is an annually grown herbaceous plant of the Nicotiana genus. The plant is tropical in origin, is commonly grown throughout the world, and is often found in cultivation.
Wikipédia
Cultigen
A cultigen (from Latin cultus 'cultivated', and gens 'kind') or cultivated plant is a plant that has been deliberately altered or selected by humans; it is the result of artificial selection. For the most part, these plants have commercial value in horticulture, agriculture or forestry. Because cultigens are defined by their mode of origin and not by where they grow, plants meeting this definition remain cultigens whether they are naturalised, deliberately planted in the wild, or grown in cultivation.
Cultigens arise in the following ways:
- through the selection of variants from the wild or cultivation, including vegetative sports (aberrant growth that can be reproduced reliably in cultivation)
- from plants that are the result of plant breeding and selection programs
- from genetically modified plants (plants modified by the deliberate implantation of genetic material)
- from graft-chimaeras (plants grafted to produce mixed tissue with graft material from wild plants, special selections, or hybrids).
