Poboljšanje klijavosti sjemena kapare (Capparis orientalis Veill.)

master's thesis

• Title (english): Improvement of caper (Capparis orientalis veill.) seed germination
• Author: Kristina Bajlo
• Mentor: Ivanka Žutić (mentor)
• Committee member: Ivanka Žutić (predsjednik povjerenstva)
• Committee member: Martina Grdiša (član povjerenstva)
• Committee member: Božidar Benko (član povjerenstva)
• Committee member: Sanja Radman (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Vegetable Crops); Zagreb
• Defense date and country: 2017-07-05, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Kapara je višegodišnji listopadni grm koji samoniklo raste na području Mediterana, a u Hrvatskoj nije zabilježen plantažni uzgoj. Mladi izbojci i plodovi mogu se konzumirati kao povrće, a ukiseljeni ili usoljeni cvjetni pupovi upotrebljavaju se kao začin u kulinarstvu. Kapare se uglavnom razmnožavaju vegetativno (stabljičnim reznicama), budući da pri sjetvi sjemena najveći problem predstavlja niski postotak klijavosti zbog dormantnog sjemena. Dormantnost sjemena kapare rezultat je nepropusne sjemene ovojnice i sluzi koja se stvara kada sjeme dođe u kontakt s vodom, što onemogućava dovod kisika embriju. Cilj ovog rada bio je ispitati utjecaj različitih predsjetvenih tretmana sjemena (močenje u destiliranoj vodi, ekstraktu kamilice te otopinama giberelinske kiseline GA3, kalijeva nitrata i komercijalnog preparata 'Ekobooster 1', uz ili bez skarifikacije sjemena sumpornom kiselinom) na otklanjanje dormantnosti. Dokazano je da GA3 može djelomično otkloniti dormatnost neskarificiranog sjemena, dok se ostali tretmani u tom smislu nisu pokazali učinkoviti.

Abstract (english)

Caper bush is a perennial deciduous shrub that grows wild in the Mediterranean region, while in Croatia cultivation is not recorded. The young sprouts and fruits can be consumed as a vegetable, while pickled or salted flower buds are used as a spice in cookery. Vegetative propagation (stem cuttings) is mainly used, since in generative reproduction the largest issue is low percentage of germinated seeds due to seed dormancy. Caper seed dormancy is result of impermeable seed involucre along with slime which is generated when the seed is placed in contact with water and thus the oxygen supply to the embryo is disabled. The aim of this study was to investigate the effect of different pre-seeding treatments (soaking of seeds in distilled water, chamomile extract, and in solutions of gibberellic acid GA3, potassium nitrate and commercial product 'Ekobooster 1', along with or without chemical scarification with sulfuric acid) on elimination of seed dormancy. It was proved that the GA3 treatment can partly eliminate dormancy of non-scarified caper seed, while other treatments didn't show any significant effect.

• Keywords: dormatnost sjemena; skarifikacija; predsjetveni tretmani; GA3
• Keywords (english): pre-seeding treatments; scarification; seed dormancy; GA3
• Language: croatian
• URN:NBN: urn:nbn:hr:204:964904
• Study programme: Title: Horticulture; Study programme type: university; Study level: graduate; Academic / professional title: magistar/ magistra inženjer/inženjerka hortikulture (magistar/ magistra inženjer/inženjerka hortikulture)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2017-07-26 07:31:28