Aktivacija potencijala klijavosti dalmatinskog buhača primjenom koherentnog zračenja

master's thesis

• Title (english): Activation of the germination potential of Dalmatian pyrethrum by coherent radiation
• Author: David Kuzmić
• Mentor: Ante Galić (mentor)
• Committee member: Ante Galić (predsjednik povjerenstva)
• Committee member: Stjepan Pliestić (član povjerenstva)
• Committee member: Martina Grdiša (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Sustainable Technologies and Renewable Energy Sources); Zagreb
• Defense date and country: 2024-09-24, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Cilj istraživanja je utvrditi utjecaj različitih laserskih tretmana na aktivaciju potencijala klijavosti sjemena dalmatinskog buhača. Prosječna vrijednost energije klijanja kontrolnog uzorka iznosila je 2,00 %. Nakon provedenih tretmana porast energije klijanja zabilježen je kod svih uzoraka tretiranih 100 mW i 500 mW laserom. Kod uzoraka tretiranih 200 mW laserom porast energije klijanja zabilježen je kod uzoraka tretiranih 60 i 120 s, dok kod uzoraka tretiranih 30 s nije zabilježena promjena energije klijanja u odnosu na kontrolni uzorak. Prosječna vrijednost standardne klijavosti kod kontrolnog uzorka iznosila je 6,00 %. Kao i kod energije klijanja, povećanje klijavosti zabilježeno je kod gotovo svih tretiranih uzoraka osim kod uzoraka koji su tretirani 500 mW laserom tijekom 60 sekundi gdje je došlo do smanjenja standardne klijavosti od 0,33 %. Uzevši u obzir izlazne snage lasera vidljivo je da je tretman od 120 s 100 i 500 mW laserom uzrokovao najveći porast energije klijanja u iznosu od 2,00 %, dok je najveći porast standardne klijavosti od 4,00 % zabilježen kod tretmana 100 mW laserom u trajanju od 120 s. Rezultati istraživanja pokazuju da je intenzitet zračenja po sjemenki relativno nizak što sugerira da učinak lasera na biljni materijal prvenstveno djeluje putem biostimulacije.

Abstract (english)

The aim of the study is to determine the influence of different laser treatments on the activation of the germination potential of Dalmatian pyrethrum seeds. The average value of the germination energy of the control sample was 2.00 %. After the treatments, an increase in germination energy was observed in all samples treated with a 100 mW and a 500 mW laser. In the samples treated with a 200 mW laser, an increase in germination energy was observed in the samples treated for 60 and 120 s, while no change in germination energy was observed in the samples treated for 30 s compared to the control sample. The average value of standard germination for the control sample was 6.00 %. As with the germination energy, an increase in germination was observed in almost all treated samples, except for the samples treated for 60 s with a 500 mW laser, which showed a decrease in standard germination of 0.33 %. Considering the output power of the laser, it is observed that the treatment of 120 s with 100 and 500 mW lasers caused the highest increase in germination energy of 2.00 %, while the highest increase in standard germination of 4.00 % was recorded when treated with a 100 mW laser for a duration of 120 s. The research results show that the radiation intensity per seed is relatively low, indicating that the effect of the laser on the plant material is primarily through biostimulation.

• Keywords: dalmatinski buhač; klijavost; laser; biostimulacija
• Keywords (english): Dalmatian pyrethrum; germination; laser; biostimulation
• Language: croatian
• URN:NBN: urn:nbn:hr:204:493371
• Study programme: Title: Agricultural Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/ magistra inženjer/inženjerka poljoprivredne tehnike (magistar/ magistra inženjer/inženjerka poljoprivredne tehnike)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-10-22 07:28:11