Modelovanie dopadov prirodzenej a umelej obnovy na genetickú štruktúru: 2. nezmiešaný jeľový porast

Marian Pacalaj; Dušan Gömöry; Roman Longauer

doi:10.2478/v10114-011-0009-8

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Modelovanie dopadov prirodzenej a umelej obnovy na genetickú štruktúru: 2. nezmiešaný jeľový porast

Central European Forestry Journal

Volume 57 (2011): Issue 4 (December 2011)

By: Marian Pacalaj, Dušan Gömöry and Roman Longauer

Open Access

|Apr 2012

Abstract

V príspevku je hodnotená variabilita plodnosti materských stromov a vplyv vybraných obnovných rubov v nezmiešanom poraste jedle bielej. V tomto 120-ročnom, obnovou rozpracovanom poraste na Starých Horách bola vo výške 850 m n. m. založená výskumná plocha so 165 stromami. Pozícia jednotlivých stromov bola zameraná, zistená bola ich výška, prsná hrúbka, veľkosť a projekcia koruny, početnosť šišiek v štyroch po sebe nasledujúcich rokoch a samčích strobilov v jednom roku. Pomocou izoenzýmových genetických markérov boli v 17 lokusoch určené aj genotypy všetkých stromov.

Pomocou programu Eco-Gene (Degen & Gregorius & Scholz 1996) boli postupne testované: dvojfázový okrajový, skupinový, skupinovitý clonný, jednotlivo a skupinovo výberný rub. Na ich vyhodnotenie boli použité 3 kritériá: minimálna tvorba priestorovej genetickej štruktúry v potomstve, minimálna diferenciácia potomstva od materskému porastu a zachovanie genetickej variability v potomstve. Najviac týmto kritériám vyhovoval skupinovitý clonný rub. Ostatné obnovné zásahy boli menej vhodné a ich postavenie bolo viac-menej rovnocenné.

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Articles in this issue

DOI: https://doi.org/10.2478/v10114-011-0009-8 | Journal eISSN: 2454-0358 | Journal ISSN: 2454-034X

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Language: English

Page range: 251 - 260

Published on: Apr 19, 2012

Published by: National Forest Centre and Czech University of Life Sciences in Prague, Faculty of Forestry and Wood Sciences

In partnership with: Paradigm Publishing Services

Publication frequency: 4 issues per year

Keywords:

European silver fir,

stand,

variation in fertility,

Related subjects:

Ecology,

© 2012 Marian Pacalaj, Dušan Gömöry, Roman Longauer, published by National Forest Centre and Czech University of Life Sciences in Prague, Faculty of Forestry and Wood Sciences
This work is licensed under the Creative Commons License.

Volume 57 (2011): Issue 4 (December 2011)