Vpliv izvlečkov mahov na kalitev izbranih rastlinskih vrst

Tavčar, Gašper (author), Dolenc Koce, Jasna (mentor), Strgulc Krajšek, Simona (co-mentor)

V okviru magistrskega dela smo pripravili vodne in etanolne izvlečke šestih vrst mahov: Polytrichum formosum, Thuidium tamariscinum, Plagiomnium undulatum, Conocephalum salebrosum, Conocephalum conicum in Bazzania trilobata. Pripravljene izvlečke s koncentracijo 10 % (w/v) smo uporabili za kalitvene teste vrtne redkvice (Raphanus sativus) in navadne ajde (Fagopyrum esculentum), da bi ugotovili, ali imajo izbrane vrste mahov alelopatsko učinkovitost in zavirajo kalitev testnih vrst. Teste smo izvajali v petrijevkah pri sobnih pogojih. Izvlečke vrst T. tamariscinum, C. salebrosum in B. trilobata, ki so se izkazali za najbolj učinkovite v 10 % koncentraciji, smo pripravili še v 5 % in 1 % koncentraciji. Določili smo delež kalitve semen in izmerili dolžino korenin in poganjkov kalic po tretiranju z izvlečki. Ugotovili smo, da ni pomembnih razlik v zaviralnem delovanju izvlečkov niti med jetrenjaki in listnatimi mahovi niti med vodnimi in etanolnimi izvlečki. Tudi velikost tretiranih kalic ni bistveno odstopala od kontrolnih. Izvlečki izbranih vrst mahov ne vplivajo na kalitev semen in nadaljnjo rast kalic redkvice in ajde.

• Language: Slovenian
• Keywords: Polytrichum formosum, Thuidium tamariscinum, Plagiomnium undulatum, Conocephalum salebrosum, Conocephalum conicum, Bazzania trilobata, navadna redkvica, navadna ajda, kalitev.
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: BF - Biotechnical Faculty
• Publisher: [G. Tavčar]
• Year: 2023
• PID: 20.500.12556/RUL-150711
• UDC: 582(043.2)
• COBISS.SI-ID: 165332995
• Publication date in RUL: 22.09.2023

Secondary language

• Language: English
• Title: The effect of bryophyte extracts on the germination of selected plant species

Abstract

In this Master's thesis, we prepared extracts of six moss species: Polytrichum formosum, Thuidium tamariscinum, Plagiomnium undulatum, Conocephalum salebrosum, Conocephalum conicum and Bazzania trilobata. The prepared extracts in 10% (w/v) concentration were used for germination tests of garden radish (Raphanus sativus) and common buckwheat (Fagopyrum esculentum) in order to determine whether the selected moss species have allelopathic efficacy and inhibit germination of the test species. The tests were carried out in petri dishes at room conditions. The extracts of T. tamariscinum, C. salebrosum and B. trilobata that proved to be the most effective at 10% concentration were prepared at 5% and 1% concentration. Seed germination and root and shoot length were determined after the treatment with extracts. The results showed no significant inhibitory effects and differences between liverworts and leaf mosses and aqueous and ethanol extracts. Also, the size of treated seedling was similar as in controls. The extracts of selected bryophytes do not affect seed germination and seedling growth of radish and buckwheat.

• Keywords: Polytrichum formosum, Thuidium tamariscinum, Plagiomnium undulatum, Conocephalum salebrosum, Conocephalum conicum, Bazzania trilobata, common radish, common buckwheat, germination