Process for producing potato microtubers

A - Human Necessities – 01 – H

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A01H 4/00 (2006.01)

Patent

CA 2191623

A process for producing potato microtubers comprising the first step of conducting the culture in a relatively low sugar-concentration medium under the condition of a relatively high daily dose of optical radiation and the second step of conducting the culture in a relatively high sugar-concentration medium under the condition of a relatively low daily dose of optical radiation, wherein the first-step culture is conducted in the presence of exogenous ethylene, while the second-step culture is conducted in the absence of exogenous ethylene, thus producing numerous microtubers readily in a short period of time.

L'invention concerne un procédé pour produire des micro-tubercules de pommes de terre consistant à effectuer une première étape de culture dans un milieu de culture contenant une concentration en sucre relativement basse avec application d'une dose journalière relativement élevée de radiations optiques et ensuite à effectuer une seconde étape de culture dans un milieu de culture contenant une concentration relativement élevée en sucre avec application d'une dose journalière relativement basse de radiations optiques. La première étape de culture est menée en présence d'éthylène exogène, alors que la seconde est menée en l'absence d'éthylène exogène. Ce procédé permet de produire de nombreux micro-tubercules qui sont prêts en un temps très court.

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