Open AccessGenetic and no genetic variability of two-year old seedlings of 13 hybrid plane half-sib lines
Author(s) -
Radmila Knežević,
Mirjana ŠijačićNikolić
Publication year - 2005
Publication title -
glasnik šumarskog fakulteta - univerzitet u beogradu/glasnik šumarskog fakulteta
Language(s) - English
Resource type - Journals
eISSN - 2217-8600
pISSN - 0353-4537
DOI - 10.2298/gsf0592069k
Subject(s) - seedling , genetic variability , biology , inbreeding , sterility , genetic analysis , genetic variation , horticulture , botany , genetics , gene , genotype , demography , population , sociology
This paper presents the results of the analysis of variability of 8 analyzed morph metric parameters in two-year old seedlings of 13 half-sib lines at different levels. The recorded genetic and no genetic variability is conditioned by numerous different factors. The important causes of genetic variability are: partial incompatibility of parent trees, partial hybrid sterility, predominant inbreeding, frequent mutations with the growth of parent trees, very abundant gene recombination's, etc. The causes of no genetic seedling variability are: external environmental conditions (soil humidity, conditions of cultivation, sylvotechnical interventions, etc) and the internal or the somatic environment of seedling