KaviririLiuFanEtAl2020

Référence

Kaviriri, D.K., Liu, X., Fan, Z., Wang, J., Wang, Q., Wang, L., Wang, L., Khasa, D.P., Zhao, X. (2020) Genetic Variation in Growth and Cone Traits of Pinus Koraiensis Half-Sib Families in Northeast China. Phyton-International Journal of Experimental Botany, 89(1):57-69.

Résumé

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 Pinus koraiensis 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 m(3) 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 P. koraiensis from improved seeds.

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@ARTICLE { KaviririLiuFanEtAl2020,
    AUTHOR = { Kaviriri, D.K. and Liu, X. and Fan, Z. and Wang, J. and Wang, Q. and Wang, L. and Wang, L. and Khasa, D.P. and Zhao, X. },
    TITLE = { Genetic Variation in Growth and Cone Traits of Pinus Koraiensis Half-Sib Families in Northeast China },
    JOURNAL = { Phyton-International Journal of Experimental Botany },
    YEAR = { 2020 },
    VOLUME = { 89 },
    NUMBER = { 1 },
    PAGES = { 57-69 },
    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 Pinus koraiensis 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 m(3) 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 P. koraiensis from improved seeds. },
    DOI = { 10.32604/phyton.2020.08409 },
    UNIQUE-ID = { ISI:000519775600006 },
}

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