@Article{phyton.2020.08409,
AUTHOR = {David Kombi Kaviriri, Xiaoting Liu, Zuoyi Fan, Jingyuan Wang, Qi Wang, Lianfu Wang, Lixing Wang, Damase Khasa, Xiyang Zhao},
TITLE = {Genetic Variation in Growth and Cone Traits of <i>Pinus Koraiensis</i> Half-Sib Families in Northeast China},
JOURNAL = {Phyton-International Journal of Experimental Botany},
VOLUME = {89},
YEAR = {2020},
NUMBER = {1},
PAGES = {57--69},
URL = {http://www.techscience.com/phyton/v89n1/38399},
ISSN = {1851-5657},
ABSTRACT = {Genetic parameters were evaluated for growth and cone characteristics 
(tree height, diameter at breast height, volume, cone number, thousand seeds
weight and single cone seeds weight) on 86 half-sib families of <i>Pinus koraiensis</i>
aged 31 years. Analyses of variance revealed significant differences (p < 0.001) in 
all growth and cone traits among families while no significant differences were 
detected among blocks and the interaction between blocks and families. The 
average family values for growth traits were 17.22 m, 8.67 cm and 0.43 m3 for tree 
height, diameter at breast height and volume, respectively. The average cone 
number, thousand seeds weight and single cone seeds weight were 17.57, 748.91 g 
and 77.25 g, respectively. Genotypic additive variance and phenotypic variances 
ranged from 0.00009 to 3.820 and from 0.0005 to 23.066, while genotypic and 
phenotypic coefficients of variation ranged from 2.693% to 37.196% and 4.963%
to 60.595%, respectively. Heritability at the individual and family level ranged 
from 0.152 to 0.215 and 0.611 to 0.862, respectively. Growth traits were 
significantly positively correlated with each other, but cone traits showed a weak 
correlation with growth traits. Based on 10% selection rate, nine families each 
were selected as elite materials in terms of high performance in volume and cone 
numbers, with 22.16% and 43.82% genetic gain in volume and cone number, 
respectively. These results provide beneficial information to select excellent 
families and establish orchards of <i>P. koraiensis</i> from improved seeds.},
DOI = {10.32604/phyton.2020.08409}
}