Izvlečki morskih alg kot biostimulanti

diplomsko delo

Klemen Trdan (Author), Ana Slatnar (Mentor)

Abstract

Morske alge so enostavni organizmi, sestavljeni iz ene ali več celic, ki se pojavljajo kot kolonije ali skupek celic, ki skupaj tvorijo enostavna tkiva. Večinoma so zgrajene v obliki steljke. Delimo jih na tri večje rodove: zelene, rdeče in rjave alge. Kemične komponente izvlečkov morskih alg vključujejo kompleksne polisaharide, maščobne kisline, vitamine, fitohormone in mineralna hranila. Današnje metode ekstrakcije omogočajo pridobivanje izvlečkov morskih alg z visokimi vsebnostmi omenjenih hranil. Ekstrakcija s pomočjo encimov je trenutno ena od redkih metod, ki lahko doseže ta rezultat. Z uporabo komercialnih pripravkov iz A. nodosum je bila dokazana stimulativna aktivnost rasti na tretiranih rastlinah, če so se le-te večkrat uporabljale v relativno majhnih koncentracijah. Ob uporabi izvlečkov rjave alge A. nodosum je večkrat prišlo do izboljšane rasti in povečane količine pridelka. Še vedno pa obstajajo številna vprašanja, ki jih je treba obravnavati glede učinkovitejše uporabe izvlečkov iz morskih alg. Raziskave so pokazale, da se posamezne rastlinske vrste različno odzivajo na uporabo izvlečkov iz morskih alg.

Keywords

izvlečki;alge;stres;pridelek;biostimulanti;aplikacija;

Data

Language:	Slovenian
Year of publishing:	2019
Typology:	2.11 - Undergraduate Thesis
Organization:	UL BF - Biotechnical Faculty
Publisher:	[K. Trdan]
UDC:	631.811.98:582.26/.27:631.559(043.2)
COBISS:	9290873
Views:	630
Downloads:	137
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Seaweed extracts as biostimulants
Secondary abstract:	Seaweeds are simple organisms made of one or more cells that appear as colonies or as a collection of cells that together create simple tissues. They are mostly built in the form of a litter. They are divided into three large genus: green, red and brown algae. The chemical components of seaweed extracts include complex polysaccharides, fatty acids, vitamins, phytohormones and mineral nutrients. Today’s extraction methods can obtain algae extracts with high nutrient content. Enzyme extraction is currently one of the few methods that can come to such results. The use of commercial extracts from A.nodosum has certainly demonstrated the stimulating activity of growth on treated plants if they were used repeatedly at low concentrations. Using brown algae extracts of A.nodosum several times resulted in increased growth and increased yields. There are still numerous questions that need to be addressed regarding more effective use of common seaweed extracts. Studies has shown us that plant species are responding to applications of seaweed extracts differently.
Secondary keywords:	extracts;seaweeds;stress;yield;biostimulants;application;
Type (COBISS):	Bachelor thesis/paper
Study programme:	0
Embargo end date (OpenAIRE):	1970-01-01
Thesis comment:	Univ. v Ljubljani, Biotehniška fak., Oddelek za agronomijo
Pages:	VI, 21 str.
ID:	11227597