diplomsko delo
Mihael Petrovec (Author), Blaž Cigić (Reviewer), Tomaž Požrl (Mentor)

Abstract

Cilj diplomskega dela je bil ovrednotiti proces namakanja in kaljenja rička ter konoplje. Poleg tega smo pripravili še razmaščene vzorce kaljenih oljnic za nadaljnje raziskave. Konopljina semena smo namakali 8 ur, nato pa po 16 urni prekinitvi še dve uri. Vsebnost vode smo določali s tehtanjem in sušenjem do konstantne mase. Namočeno konopljo smo kalili 72 ur pri 20 °C in RV > 95 %. Ugotovili smo, da je najintenzivnejše vpijanje vode potekalo v prvi uri namakanja ter v prvi uri po 16 urni prekinitvi. Potrdili smo, da med konopljinimi semeni, ki so bila predhodno tretirana s toplo vodo (5 minut pri 50 °C), in netretiranimi semeni ni bilo bistvene razlike v intenziteti vpijanja vode in kaljivosti, saj smo v obeh vzorcih 26 ur namočene konoplje določili okrog 40 % vsebnost vode, po 72 urah kaljenja pa 90 % kaljivost. Riček smo namakali tako, da smo pripravili različna razmerja zrn in vode (1:1, 1:2, 1:3, 1:4). Vsebnost vode smo pri ričku določali s sušenjem do konstantne mase. Riček smo kalili pri enakih pogojih kot konopljo. Pri določanju vsebnosti vode v namočenem ričku je meritev motila tvorba polisaharidnega ovoja. Najboljšo kaljivost (95 %) smo določili pri razmerju riček voda 1:3. Tako razmerje smo uporabili tudi pri pripravi vzorcev različno dolgo kaljenega rička za razmaščevanje (24, 48 in 72 ur). V enakih časovnih razmikih smo vzorčili tudi kaljeno konopljo.

Keywords

navadni riček;Camelina sativa;industrijska konoplja;Cannabis sativa;namakanje semen;kaljenje semen;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL BF - Biotechnical Faculty
Publisher: [M. Petrovec]
UDC: 633.85+633.522:577.1
COBISS: 5098104 Link will open in a new window
Views: 732
Downloads: 204
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Other data

Secondary language: English
Secondary title: Germination of Camelina (Camelina sativa L.) and industrial hemp (Cannabis sativa L.)
Secondary abstract: The aim of the graduation thesis was to evaluate the process of soaking and germination of camelina and hemp. In addition, defatted seed samples were prepared for further research. Hemp seeds were soaked for 8 hours, followed by an additional two hours soaking after a 16-hour break. The water content was determinated by weighing and drying to constant weight. Soaked hemp was germinated for 72 hours at 20 °C and RH > 95%. We found that the most intense water absorption took place in the first hour of soaking and in the first hour after a 16-hour break. We confirmed that there was no important difference in the water absorption rate and germination rate of hemp pre-treated with warm water (5 minutes at 50 °C) and untreated seeds. In both hemp samples after 26 hours of soaking we determined approximately 40 % water content and after 72 hours of germination 90 % germination rate. Camelina's seeds were soaked by preparing different grain-water ratios (1:1, 1:2, 1:3, 1:4). The water content of camelina was determined by drying to constant weight. Camelina, soaked in different ratios with water, was germinated under the same conditions as hemp. The hydrated polysaccharide layer of camelina interfered with the determination of water cotent in seeds. The best germination rate (95 %) was determinted at a 1:3 ratio of camelina-water. This ratio was also used for the preparation of differently long-germinated camelina seeds samples (24, 48, 72 hours) for defatting. The same time intervals were used for germinated hemp sampling.
Secondary keywords: camelina;Camelina sativa;hemp;Cannabis sativa;seed soaking;seed germination;
Type (COBISS): Bachelor thesis/paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Biotehniška fak., Oddelek za živilstvo
Pages: VII, 24 f.
ID: 11224187