diplomsko delo
Lara Kump (Author), Katarina Rudolf Pilih (Reviewer), Marko Flajšman (Reviewer), Jana Murovec (Mentor)

Abstract

Konoplja ima dolgo zgodovino uporabe, ki sega v tretje tisočletje pred našim štetjem, ko so jo na azijskem kontinentu uporabljali za različne namene. V srednjem veku se je razširila tudi v Evropo in kasneje v obe Ameriki. V 20. stoletju se je njen pomen zmanjšal zaradi pritiskov, povezanih z njenim psihoaktivnim vplivom, vendar danes ponovno pridobiva pozitiven pomen, predvsem kot zdravilna in industrijsko uporabna rastlina. Kot dvodomna rastlina ima konoplja ločene moške in ženske rastline. Za pridelavo cvetov za medicinsko uporabo so najbolj primerne neoprašene ženske rastline, ki imajo največjo količino kanabinoidov. Za ta namen se lahko poslužimo setve tako imenovanih feminiziranih semen, ki omogočajo pridelavo le ženskih rastlin, ali pa sadimo rastline razmnožene iz ženskih rastlin s pomočjo potaknjencev. Pridobivanje feminiziranih semen zahteva spodbujanje nastanka moških cvetov na genetsko ženskih rastlinah, kar omogoča oploditev in posledično nastanek feminiziranih semen. Tehnika je potrebna tudi za namene žlahtnjenja konoplje za medicinsko uporabo. Med najučinkovitejšimi metodami manipulacije izražanja spola se je zaenkrat izkazala uporaba srebrovih spojin, kot sta srebrov tiosulfat in srebrov nitrat. Preizkušene so bile tudi druge metode, kot so uporaba rastnih regulatorjev (npr. giberelinska kislina) ter prilagajanje okoljskih dejavnikov, predvsem osvetlitve.

Keywords

konoplja;Cannabis sativa;feminizirano seme;manipulacija izražanja spola;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL BF - Biotechnical Faculty
Publisher: [L. Kump]
UDC: 606:631.528:633.522:631.531(043.2)
COBISS: 208729091 Link will open in a new window
Views: 51
Downloads: 14
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Other data

Secondary language: English
Secondary title: Production of feminized seeds of hemp (Cannabis sativa L.) with manipulation of its sex expression
Secondary abstract: Cannabis has a long history of use dating back to the third millennium BCE, when it was utilized for various purposes on the Asian continent. During the Middle Ages, it spread to Europe and later to both Americas. In the 20th century, its significance declined due to pressures related to its psychoactive effect. However, today it is once again gaining positive recognition, especially as a medicinal and industrially useful plant. As a dioecious plant, cannabis has separate male and female plants. For the cultivation of flowers for medicinal use, only unfertilized female plants, which have a sufficient amount of cannabinoids, are suitable. Feminized seeds can be used to ensure the cultivation of only female plants. The production of feminized seeds requires inducing the development of male flowers on genetically female plants, enabling fertilization and the subsequent creation of feminized seeds. The technique is also used for breeding cannabis for medical use. Among the most effective methods of manipulating sex expression, the use of silver compounds, such as silver thiosulfate and silver nitrate, has proven to be the most successful so far. Other methods, such as the use of growth regulators (e.g., gibberellic acid) and the adjustment of environmental factors, especially lighting, have also been tested.
Secondary keywords: cannabis;Cannabis sativa L.;feminized seed;manipulation of sex expression;
Type (COBISS): Bachelor thesis/paper
Study programme: 0
Thesis comment: Univ. v Ljubljani, Biotehniška fak., Oddelek za agronomijo
Pages: 1 spletni vir (1 datoteka PDF (VI, 15 str.))
ID: 25114622