Provjera klijavosti sjemena vrste Hypericum olympicum L.

master's thesis

• Title (english): Seed germination of Hypericum olympicum L.
• Author: Željka Bakotić
• Mentor: Kroata Hazler-Pilepić (mentor)
• Mentor: Željan Maleš (mentor)
• Committee member: Željan Maleš (predsjednik povjerenstva)
• Committee member: Ana Mornar Turk (član povjerenstva)
• Committee member: Maja Šegvić Klarić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Pharmacy and Biochemistry; (Department of pharmaceutical botany); Zagreb
• Defense date and country: 2019-10-15, Croatia
• Scientific / art field, discipline and subdiscipline: BIOMEDICINE AND HEALTHCARE; Pharmacy; Pharmacy

Abstract

Cilj ovog rada bio je provjeriti klijavost sjemena vrste Hypericum olympicum L. u
laboratorijskim uvjetima. Sjeme je sakupljeno je u jesen 2008. i 2009. godine, a testiranje je
provedeno kroz tri različita pokusa: u uvjetima bez tretmana, uz dodatak giberelinske kiseline
koja je promotor klijavosti i uz predtretman pothlađivanja (stratifikacije). Sjeme sabrano
tijekom 2008. godine pokazalo je bolju klijavost u odnosu na sjeme sabrano 2009. godine, čime
je potvrđena dormantnost tek ubranog sjemena i dobra klijavost godinu dana starog sjemena,
utvrđena i za vrstu H. perforatum var. angustifolium. Također, ovim je istraživanjem utvrđeno
da tip dormantnosti sjemenki vrste H. olympicum nije dugotrajna fiziološka dormantnost, nego
da sjeme prolazi kroz fazu morfofiziološke dormancije budući je uočen signifikantan pozitivni
utjecaj giberelinke kiselina kao promotora klijavosti. Iz dobivenih se rezultata može zaključiti
da stratifikacija nema utjecaja na na prekid dormantnosti i klijanje sjemena vrste H. Olympicum
L.

Abstract (english)

The aim of this thesis was to investigate seed germination of Hypericum olympicum L. in
laboratory conditions. The seeds were gathered in autumn of 2008. and 2009., and the testing
was done in three different experiments: in conditions without any treatment, in conditions
where gibberelic acid was added as a seed promotor and in conditions of seed stratification.
The seeds from 2008. showed better germination than the seeds gathered in 2009., which
showed the dormancy of seeds that where gathered later and good seed germination of one
year old seeds, traits that were confirmed also for H. perforatum var. angustifolium.
The experiments also showed that the type of dormancy of H. olympicum seeds is not a longlasting physiological dormancy, but that the seeds go through the phase of
morphophysiological dormancy, the fact that was confirmed from the significantly positive
influence of gibberlic acid as a promotor of seed germination. From the results of the
experiments it can be concluded that stratification has no influence on termination of
dormancy, as well as on germination of seed of H. olympicum.

• Keywords: Hypericum olympicum L.; klijavost; giberelinska kiselina; stratifikacija
• Keywords (english): Hypericum olympicum L.; germination; gibberellic acid; stratification
• Language: croatian
• URN:NBN: urn:nbn:hr:163:155473
• Study programme: Title: Pharmacy; Study programme type: university; Study level: integrated undergraduate and graduate; Academic / professional title: magistar/magistra farmacije (magistar/magistra farmacije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2020-02-21 15:14:14