Utjecaj značajki tla na morfološka svojstva iglica i bobuljastih češera obične borovice (Juniperus communis L.)

master's thesis

• Title (english): Influence of soil properties on the morphological characteristics of the common juniper needles and cones (Juniperus communis L.)
• Author: Miljana Kurjega
• Mentor: Ivan Perković (mentor)
• Mentor: Igor Poljak (komentor)
• Committee member: Ivan Perković (predsjednik povjerenstva)
• Committee member: Igor Poljak (član povjerenstva)
• Committee member: Vibor Roje (član povjerenstva)
• Granter: University of Zagreb; Faculty of Forestry and Wood Technology; Zagreb
• Defense date and country: 2021-09-24, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Forestry

Abstract

Cilj rada bio je utvrditi utjecaj tla na morfološka svojstva iglica i bobuljastih češera obične borovice (Juniperus communis L.) i klečice (J. communis var. saxatilis Pall.). Materijal za istraživanja sakupljen je u 15 prirodnih populacija u Hrvatskoj. Unutar svake populacije sakupljeno je po pet kompozitnih uzoraka tla za pedološka istraživanja te biljni materijal, iglice i bobuljasti češeri, s po deset grmova i stabala za morfometrijska istraživanja. Istraživanjima je utvrđeno da se istraživane populacije borovice na osnovi pedoloških i morfoloških značajki statistički značajno razlikuju. Osim toga, hijerarhijskom analizom varijance je utvrđeno da se istraživane svojte, obična borovica i klečica, statistički značajno razlikuju po dimenzijama i obliku iglica te po prosječnom broj sjemenki po bobuljastom češerom. Unutar skupine populacija obične borovice nazirao se je trend grupiranja populacija po ekološkom principu. Submediteranske populacije karakterizirale su duže iglice i osrednje do slabo kisela tla, a kontinentalne populacije kraće iglice i slabo do osrednje alkalna tla. Korelacijskom analizom utvrđene su statistički značajne pozitivne korelacije između udjela gline i veličine iglica, kao i statistički značajne negativne korelacije između pH-vrijednosti tla i veličine iglica

Abstract (english)

This study aimed to analysed the influence of soil properties on the morphological traits of the needles and cones of common juniper (Juniperus communis L.) and variety of common juniper (J. communis var. saxatilis Pall.). The study encompassed 15 populations from Croatia. In each population, five composite soil samples were collected for the pedological analysis and plant material, needles and cones, from ten shrubs and trees for the morphometric analysis. Significant differences between the studied populations were found in all of the studied morphometric and pedological characteristics. In addition, we revealed that the studied taxa, common juniper and variety of common juniper, can be clearly distinguished based on the needle traits and average seed number per cone. Furthermore, common juniper populations tend to group according to the eco-geographical principal. The submediterranean populations were characterized with the larger needles and moderately to slightly acidic soils and the continental populations with the smaller needles and weakly to moderately alkaline soils. The correlation analysis revealed statically significant positive correlations between soil clay content and needle size, as well as statistically significant negative correlations between soil pH values and needle size.

• Keywords: obična borovica; značajke tla; morfometrijska analiza
• Keywords (english): common juniper; soil characteristics; morphometric analysis
• Language: croatian
• URN:NBN: urn:nbn:hr:108:970877
• Study programme: Title: Forestry; department; Silviculture and Forest Management with Wildlife Management; specializations in: Silviculture and Management Planning with Wildlife Management; Course: Silviculture and Management Planning with Wildlife Management; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka šumarstva (magistar/magistra inženjer/inženjerka šumarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2021-10-12 13:11:40