Paprastosios eglės skirtingų kilmių fenotipinių požymių kintamumas Agurkiškės bandomuosiuose želdiniuose

• Main Author: Bužinskas, Linas
• Other Authors: Riepšas, Edvardas
• Format: Dissertation
• Language: Lithuanian
• Published: Lithuanian Academic Libraries Network (LABT) 2005
• Subjects: Forestry; Kilmė; Provenance; Paprastoji eglė; Variation; Palikuonys; Origin; Kintamumas; Growth rhythm; Norway spruce; Augimo ritmas
• Online Access: http://vddb.library.lt/fedora/get/LT-eLABa-0001:E.02~2005~D_20050616_123722-31921/DS.005.0.01.ETD

Objective of the study is to assess wood yield and quality of Polish Norway spruce provenances and transfer effect in comparison with the local provenances. Object of the study is experimental plantation established in Kazlų Rūda EFE, Agurkiškės forest district (62 comp.., 43 plot). Six southern Polish proveniences were from Istebna, Ustron, Ujstoly ir Lagow forest districts and three open-pollinated families from Girionys seed orchard and progeny from the local Agurkiškės forest district were tested. Area of the experimental plantations 1,8 ha. Methods: quantitative and qualitative traits of the trees in the plantation were assessed by using the following tools and methods: height was measured with a telescopic pole, diameter with calipers and the quantitative traits were assessed by the standard methods used in genetics and breeding. Results: this study showed that growth rate and wood yield of the southern provenances were higher than of the progenies of the selected plus trees of Lithuanian origin. However, wood yield of soother Polish provenances was significantly higher than that of the local regular stands of Agurkiškių provenance. This indicates, that the seed orchard material is superior over the material form regular unimproved forests stands. This difference may be caused not only by the geographical transfer effect but also related to genetic quality of the original stands. Polish provinces possessed a lower number of forked trees but their stems were less... [to full text]