Articles
EVALUATION OF GROWTH CHARACTERISTICS OF THE EUROPEAN CHESTNUT PROGENIES OF F1 AND F2 GENERATIONS DERIVED FROM OPEN POLLINATION
Article number
815_13
Pages
99 – 106
Language
English
Abstract
A series of experimental plots with open-pollinated progenies of 97 old chestnut trees from 12 localities of Slovakia were established in 1966 and 1969 aiming at silvicultural studies.
In 2004, twelve progenies of four different proveniences (three progenies per provenience) characterized by above-average growth performence were selected for seed collection.
One- and two-year-old seedlings of F2 generation have subsequently been evaluated.
Growth characteristics of these seedlings differed significantly by their origin (locality of parental tree and progeny). Medium strong correlation was observed between seed weight and mean values of growth characteristics of one- year-old seedlings in individual F2 progenies.
Variability of stem height in 35-year-old progenies of F1 generation similarly like variability of seedling height in F2 generation were significantly influenced by the Horné Lefantovce origin.
It was a progeny of this origin, which exhibited the highest values of stem height in both F1 and F2 generations.
However, the correlation between the twelve stem height progeny means of F1 and F2 generations was only medium strong (r = 0.52 and 0.54) whereas the inter-generation correlation between stem diameter progeny means was not significant at all.
In 2004, twelve progenies of four different proveniences (three progenies per provenience) characterized by above-average growth performence were selected for seed collection.
One- and two-year-old seedlings of F2 generation have subsequently been evaluated.
Growth characteristics of these seedlings differed significantly by their origin (locality of parental tree and progeny). Medium strong correlation was observed between seed weight and mean values of growth characteristics of one- year-old seedlings in individual F2 progenies.
Variability of stem height in 35-year-old progenies of F1 generation similarly like variability of seedling height in F2 generation were significantly influenced by the Horné Lefantovce origin.
It was a progeny of this origin, which exhibited the highest values of stem height in both F1 and F2 generations.
However, the correlation between the twelve stem height progeny means of F1 and F2 generations was only medium strong (r = 0.52 and 0.54) whereas the inter-generation correlation between stem diameter progeny means was not significant at all.
Publication
Authors
M. Bolvanský, F. Tokár, M. U¿ík
Keywords
Castanea sativa Mill., seedlings, stem height, stem diameter, variability, correlations
Online Articles (38)