diplomsko delo
Nina Sojer (Author), Marko Flajšman (Mentor), Helena Abramovič (Co-mentor)

Abstract

Navadna konoplja (Cannabis sativa L.) je vsestransko uporabna rastlina. V preteklosti je bila konoplja znana kot predivnica in oljnica, v zadnjih letih pa se njena prepoznavnost povečuje predvsem zaradi koristnih prehranskih lastnosti in pozitivnih učinkov na zdravje. Poljski poskus s različnimi sortami navadne konoplje je bil izveden na laboratorijskem polju Biotehniške fakultete v letu 2019. Testirali smo vpliv dveh gostot setve (200 in 300 semen/m²) na pridelek semena. Ugotovili smo, da gostota setve ne vpliva na pridelek semena. Večji vpliv na pridelek so imele vremenske razmere. Največji pridelek semena z 9 % vlage je imela sorta 'Futura 75' pri gostoti 200 semen/m² s pridelkom 419 kg/ha. Imela je tudi največjo absolutno maso pri tej gostoti setve, to je 19,1 g. V nadaljevanju smo seme uporabljenih sort zmleli, razmastili s heksanom in pripravili izvlečke s 70 % etanolom. Določili smo vsebnost fenolnih spojin s spektrofotometrično metodo Folin-Ciocalteu in ovrednotili antioksidativni potencial (AOP). Rezultati so največjo vsebnost fenolnih spojin pokazali v sorti 'Futura 75' (2,9 mg KK/g). Najboljšo sposobnost za lovljenje radikala DPPH• je pokazal izvleček iz semen 'Fedora 17'. Ugotovili smo, da sorta z največ fenolnimi spojinami nima tudi največjega AOP.

Keywords

navadna konoplja;Cannabis sativa;gostota setve;fenolne spojine;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL BF - Biotechnical Faculty
Publisher: [N. Sojer]
UDC: 633.522:631.543.2:547.56(043.2)
COBISS: 78906371 Link will open in a new window
Views: 181
Downloads: 32
Average score: 0 (0 votes)
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Other data

Secondary language: English
Secondary title: Differences among hemp (Cannabis sativa L.) varietes based on agronomic performance and phenolic content of seed
Secondary abstract: Hemp (Cannabis sativa L.) can be used for a variety of purposes. In the past, hemp was known as a yarn and oilseed; however, its prominence is increasing primarily due to useful nutritional qualities and positive health effects. A field experiment with different varieties of hemp was conducted at the Biotechnical Faculty laboratory field in 2019. The influence of sowing density (200 and 300 seeds/m²) on seed yield was investigated. The results showed that sowing density had no effect on seed yield. The highest seed yield with 9% moisture was that of the variety 'Futura 75' at the density of 200 seeds/m² and it was 419 kg/ha. This variety also had the highest absolute seed weight at this density, which was 19.1 g. Further more, the seeds of the studied species were ground, defatted with hexane and extraction was carried out with 70% ethanol. We determined the content of phenolic compounds using the Folin Ciocalteu spectrophotometric method and evaluated the antioxidant potential (AOP). The results showed the highest content of phenolic compounds in 'Futura 75' variety (2.9 mg KK/g). The highest ability to scavenge radical DPPH• was found in the extracts from the 'Fedora 17' seeds. We found that the variety with the highest phenolic compounds content did not also have the highest AOP.
Secondary keywords: hemp;sowing density;phenolic compound;
Type (COBISS): Bachelor thesis/paper
Study programme: 0
Thesis comment: Univ. v Ljubljani, Biotehniška fak., Oddelek za agronomijo
Pages: VIII, 32 f.
ID: 13627838