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Genetic Variation in Growth and Cone Traits of Pinus Koraiensis Half-Sib Families in Northeast China

Phyton-International Journal of Experimental Botany 2020年第1期89卷 57-69页

作者： david kombi kaviriri Xiaoting Liu Zuoyi Fan Jingyuan Wang Qi Wang Lianfu Wang Lixing Wang Damase Khasa Xiyang Zhao State Key Laboratory of Tree Genetics and Breeding Northeast Forestry UniversityHarbin150040China Linjiang Forestry Bureau of Jilin Province Lijiang134600China Department of Natural Resources Management Faculty of Agricultural SciencesUniversity of KinshasaKinshasa023Democratic Republic of Congo Departments of Forestry Faculty of Agricultural SciencesSemuliki Official UniversityBeni048Democratic Republic of Congo Canada Research Chair in Forest and Environmental Genomics Centre for Forest Research and Institute for Integrative Biology and SystemsUniversitéLavalQuebec GiV 0A6Canada

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.

关键词： Pinus koraiensis half-sib families genetic variation selection

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Clonal variations in cone,seed and nut traits in a Pinus koraiensis seed orchard in Northeast China

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Journal of Forestry Research 2021年第1期32卷 171-179页

作者： david kombi kaviriri Yuxi Li Dawei Zhang Hongtao Li Zuoyi Fan Jingyuan Wang Lianfu Wang Qi Wang Deqiu Wang Vincent L.Chiang Xiyang Zhao State Key Laboratory of Tree Genetics and Breeding Northeast Forestry UniversityHarbin 150040People’s Republic of China Forest Cultivation Center Linjiang Forestry Bureau of JilinLinjiang 134600People’s Republic of China Department of Natural Resources Management Faculty of Agricultural SciencesUniversity of KinshasaKinshasaDemocratic Republic of Congo Department of Forestry Faculty of Agricultural SciencesSemuliki Offi cial UniversityBeniDemocratic Republic of Congo

Korean pine(Pinus koraiensis Siebold&Zucc.)in Northeastern China has been genetically improved to increase seed yields in addition to timber.To assess seed yield variability and select highly productive clones,14 cone,seed and nut traits were measured and analyzed.Variance analysis showed that all clones were signifi cantly different in various traits(P<0.01).Phenotypic coeffi cients of variation and repeatability of traits ranged from 9.1 to 34.4%and from 27.5 to 97.7%,respectively.Except for the cone layer and cone seed numbers,the other traits were positively or negatively correlated.Three principal components were identifi ed.Seed and nut traits were the most important traits in the fi rst principal component,and cone traits more important in the second.Using correlation and principal component analyses,cone number and other traits were selected to evaluate materials.Twenty-two clones were selected using a selection rate of 10%based on cone number independently or other combined traits.The genetic gain for diff erent traits ranged from 6.2 to 24.3%.The selected elite clones can supply seedlings for reforestation and the selection method can provide a theoretical basis for selection in other conifer species.

关键词： Pinus koraiensis Clones Cone Seed Nut traits Principal component analysis

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红松开花结实研究进展

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分子植物育种 2019年第4期17卷 1364-1372页

作者：张秦徽李蕊王璧莹 kombi kaviriri david 裴晓娜王忠良梁德洋张鹏赵曦阳东北林业大学林木遗传育种国家重点实验室哈尔滨150040 白城市林木良种繁育场白城137000 临江林业局桦树林场临江134600

红松是东北地区珍贵的果材兼用树种,雌雄同株异花,其木材可作家具、建筑等行业材料,松籽可食用和药用,具有很高的生态和经济价值。早年间的红松林大多用于取材,对松籽价值考虑甚少。而随着社会水平的提高,人们对饮食健康的要求越来越高... 详细信息

红松是东北地区珍贵的果材兼用树种,雌雄同株异花,其木材可作家具、建筑等行业材料,松籽可食用和药用,具有很高的生态和经济价值。早年间的红松林大多用于取材,对松籽价值考虑甚少。而随着社会水平的提高,人们对饮食健康的要求越来越高,具有较高营养价值的红松籽也越来越受到人们的喜爱。近几年国有林场陷入森林资源危机和经济危困,林业改革不断进行,并且市场对于红松副产品——红松籽的需求量在不断地加大,红松籽供不应求。在这样的背景下,促进红松开花结实方面的研究就逐渐成为人们关注的焦点。有关促进红松开花结实的研究较多,常规的方法包括良种选育、嫁接、施肥等,能在一定程度上促使红松提早开花结实。本综述整理了促进红松开花与结实的相关资料,并对这些材料进行了归纳总结,以期为红松果材兼用林的营建提供理论参考,并对以后该方面的研究方向提出展望。

关键词：红松开花结果研究进展

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