%0 Journal Article
%A DING Wen-Ya
%A GAO Hai-Yan
%A GE Li-Li
%A HOU Qing-Wen
%A LI Zhao-Min
%A ZHAO Xi-Yang
%A ZHAO Yin-Kun
%A ZHOU Xue-Yan
%T Evaluating Parents of <i>Pinus koraiensis</i> Seeds Orchard with Growth and Fruiting
%D 2020
%R 10.7525/j.issn.1673-5102.2020.03.008
%J Bulletin of Botanical Research
%P 376-385
%V 40
%N 3
%X In order to evaluate and select the excellent breeding materials of <i>Pinus koraiensis</i>, the growth traits(height, diameter at breast height) and fruit traits(cone number, fresh cone weight, thousand seed weight and cone seeds weight) of 69 half-sib families in 26 and 28 years old were determined and analyzed. At different determination time, and all traits among different families reached an extremely significant difference level(<i>P</i><0.01). The heritabilities of each trait was higher(0.87-0.96). The range of phenotypic variation coefficient was 6.30%(thousand seeds weight)-63.00%(cone number). The range of general combining ability of the height, diameter at breast height and cone number were(-1.77-1.83), (-9.31-8.67) and (-15.97-16.03), respectively. The correlation coefficients among growth traits showed high level(0.716-0.998), but most fruit traits and growth traits showed no significant correlation. Used the method of multi-trait comprehensive evaluation, 69 half-sib families were evaluated by growth and fruit traits, respectively. Seven families were selected by growth traits with the selection rate by 10%, the genetic gains of height, diameter at breast height were 15.66% and 35.40%, respectively. Seven families were selected according to fruit traits, the genetic gains of cone number, fresh cone weight and cone seed weight were 87.30%, 1.77% and 3.39%, respectively. The results can provide the basis and materials for the evaluation and selection of elite families.
%U https://bbr.nefu.edu.cn/EN/10.7525/j.issn.1673-5102.2020.03.008