Starost stabala Lunjskih maslina

master's thesis

• Title (english): Old age of olives tree from Lun
• Author: Filip Dabo
• Mentor: Đani Benčić (mentor)
• Committee member: Đani Benčić (predsjednik povjerenstva)
• Committee member: Ernest Goršić (član povjerenstva)
• Committee member: Ivica Ljubičić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Pomology); Zagreb
• Defense date and country: 2018-06-08, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Kompleks Lunjskih maslinika nalazi se na krajnjemu sjevernom dijelu produženoga kraka otoka Paga. Stabla maslina na ovoj se lokaciji vizualno procjenjuju po starosnim skupinama na ona stabla koja su stara svega nekoliko godina, višestoljetna stabla, do stabala starijih više od oko tisuću godina. Stabla različitih starosti međusobno su izmiješana i rastu nepravilno raspoređena na kamenitom tlu. Ukupna površina ovog kompleksa iznosi 400 ha, a broj stabala procjenjuje se na oko 80.000 stabala. Od ukupne površine pod upravom Maslinarske zadruge Lun je oko 50 ha, a 20 ha od 1963. godine zaštićeno je pod nazivom Botanički rezervat. Jedinstvenost stabala Lunjskih maslina očituje se u njihovom nastanku iz sjemena, odnosno generativnim načinom razmnožavanja kojim se ovdje maslina razmnožava prirodnim putem bez djelovanja čovjeka (Benčić 2015.). Drugo i za vizualni efekt punio važnije svojstvo jedinstvenosti je velika starost pojedinih stabala što se očituje u njihovom raritetnom izgledu. Metoda koja je korištena za utvrđivanje starosti odabranih stabala iz kompleksa Lunjskih maslina, koja je primijenjena u ovom istraživanju bazira se na uzimanju izvrtaka. Osim te metode, kao pomoć boljem razumijevanju i definiranju načina formiranja goda i granica godova, praćen je unutargodišnji prirast stabala korištenjem dendrometarskih traka i uzimanjem kratkih izvrtaka alatom Trephor. Rezultati istraživanja unutargodišnjeg prirasta pokazali su da se prosječna širina goda kreće od 1,34 do 5,06mm, te je u velikoj mjeri povezana s količinom i rasporedom godišnjih oborina. Metodom uzimanja izvrtaka utvrđena je starost stabala A1 i A2 od 13 godina što je i potvrđeno izjavom vlasnika maslinika o godini sadnje. Istom je metodom utvrđen broj godova za stabla A3 i A4 i to 71 god za stablo A3, odnosno 80 godova za stablo A4. Oba su stabla prethodno vizualno procijenjena na starost od oko 100 godina. Kod stabala A5 i A6, koja su procijenjena vizualno na starost više od 1500 godina, nije bilo moguće odrediti apsolutnu starost zbog velikog udjela truleţi centralnog dijela debla, velike asimetričnosti debla te s tim povezanog velikog broja nejasno definiranih godova.

Abstract (english)

The Lun Olive orchard complex is located on the far north of the extended stretch of the island of Pag. Olive trees at this area are visually estimated by age groups on those trees that are only several years old, more centuries-old trees, to trees older than more than a thousand years. The trees of different ages are mutually mixed together and grow scatteredon the rocky ground. The total area of this complex is 400 ha and the number of trees is estimated to about 80,000. From the total area under the management of the Lun olive-growing cooperative Lun is about 50 hectares, and 20 hectares is protected since 1963 as nature reserve The uniqueness of the Lun olives is manifested in their emergence from the seed or by the generative reproduction method by which the olive is naturally propagated without the influence of man (Benčić 2015). Secondly, there is the visual effect of old individual trees great age manifested in their specific and rare form. The method used to determine the age of the selected trees from the Lunjski Olive complex, which was applied in this research, is based on taking the increment cores. In addition to this method, in order to better understand and define the way of tree ring formation and tree ring boundaries a year-long tree growth was monitored using dendromet bands and special Trephor tool which enables taking small cores and monitoring tree ring anatomy formation. The results of this one-year growth increase have shown that the average ring width ranges from 1.34 to 5.06mm, and is largely related to the amount and the annual rainfall distribution. The age of trees A1 and A2 of 13 years was determined by the method of taking the increment cores, which was confirmed by the owner of the olive trees with the year of planting. The same method determined the number of tree rings for trees A3 and A4 and which is 71 years for tree A3 and 80 years for tree A4. Both trees were previously visually estimated at age of about 100 years. In the case of trees A5 and A6 that were visually estimated for the age of more than 1500 years it was impossible to determine the absolute age because the large part of the trunk central part was rotten and asymmetrical with large number of poorly defined tree rings.

• Keywords: Lunjski maslinici; stabla masline; starost stabala masline
• Keywords (english): Lun olive groves; olive trees; age estimation
• Language: croatian
• URN:NBN: urn:nbn:hr:204:232178
• 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: Access restricted to students and staff of home institution
• Created on: 2018-06-21 12:02:26