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Pregled bibliografske jedinice broj: 606447

A Comparison of Methods for Age Determination of the Oldest Croatian Olive Tree


Radunić, Mira; Klepo, Tatjana; Drvodelić, Damir; Oršanić, Milan; Mikac, Stjepan
A Comparison of Methods for Age Determination of the Oldest Croatian Olive Tree // Book of Abstract VIIth International Symposium on Olive Growing
San Juan, Argentina, 2012. str. P-2 (poster, međunarodna recenzija, sažetak, znanstveni)


Naslov
A Comparison of Methods for Age Determination of the Oldest Croatian Olive Tree

Autori
Radunić, Mira ; Klepo, Tatjana ; Drvodelić, Damir ; Oršanić, Milan ; Mikac, Stjepan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstract VIIth International Symposium on Olive Growing / - San Juan, Argentina, 2012, P-2

Skup
VIIth International Symposium on Olive Growing

Mjesto i datum
San Juan, Argentina, 25-29. 09. 2012

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Olea europaea; monumental olive; annual tree rings; resistograph

Sažetak
Olive (Olea europaea L.) is one of the 17 tree species that can reach more than a 1000 years of age. The oldest Croatian olive tree, ‘Perišićeva mastrinka’ that grows in Kaštela area, is a monument to a long olive growing tradition. Unknown origin and morphological characterization results (high yield, fruit size, oil content, ect.) indicate that this tree is probably a spontaneous seedling of some unknown cultivar. The exact age of this tree is unknown, although morphological assessment (trunk and crown diameter) puts it between 1500 and 2000 years. The diameter increment is an autogenous feature of olive trees, controlled by various external factors, particularly climate. The main object of this study was to compare two methods (based on counting the number of annual tree rings) of tree age determination on seven sections made of branches removed after pruning of the monumental olive tree. The traditional method used for measuring the core increment is a destructive method and, in this case, not applicable. This method was compared to the nondestructive resistograph (IML RESI F500) method with 0, 1 mm resolution and catheter (diameter of 1 mm). The TSAPWin 4.67, ARSTAN and COFECHA softwares were used in this analysis. Preliminary results have shown that the two methods are very similar (more than 90%). The tree ring width ranged from 0, 08 to 2, 94 mm, with the average value of 0, 70 mm. Autocorrelations in tree ring series ranged from 0, 6 to 0, 7, and mean sensitivity is very low with the average of 0, 37. These results indicate the possible use of this nondestructive method in age determination of very old olive trees. However, the central part of the tree is poorly conserved, and a more precise age determination would need to include at least 10 olive trees grown in similar climate condition.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija), Šumarstvo



POVEZANOST RADA


Projekt / tema
068-0682041-1975 - Utjecaj kvalitete sadnica na uspjeh obnove šuma (Milan Oršanić, )
091-0910468-0166 - Vrednovanje, zaštita i upotreba genetskih resursa masline (Slavko Perica, )

Ustanove
Šumarski fakultet, Zagreb,
Institut za jadranske kulture i melioraciju krša, Split