Volume 28 Issue 1
Feb.  2011
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ZHANG Xiao-fei, LI Huo-gen, YOU Lu-xiang, CAO Jian. Variation and genetic stability of two-year-old Liriodendron seedling growth for 39 mating combinations[J]. Journal of Zhejiang A&F University, 2011, 28(1): 103-108. doi: 10.11833/j.issn.2095-0756.2011.01.016
Citation: ZHANG Xiao-fei, LI Huo-gen, YOU Lu-xiang, CAO Jian. Variation and genetic stability of two-year-old Liriodendron seedling growth for 39 mating combinations[J]. Journal of Zhejiang A&F University, 2011, 28(1): 103-108. doi: 10.11833/j.issn.2095-0756.2011.01.016

Variation and genetic stability of two-year-old Liriodendron seedling growth for 39 mating combinations

doi: 10.11833/j.issn.2095-0756.2011.01.016
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  • Corresponding author: LI Huo-gen
  • Publish Date: 2011-02-20
通讯作者: 陈斌, bchen63@163.com
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Variation and genetic stability of two-year-old Liriodendron seedling growth for 39 mating combinations

doi: 10.11833/j.issn.2095-0756.2011.01.016
    Corresponding author: LI Huo-gen

Abstract: In order to select the best mating combinations from three mating systems (inter-species crossing,intra-species crossing,and backcross),interspecific hybridization and heterosis (two preferred genetic improvement methods) were utilized in progeny testing of all 39 mating combinations in Liriodendron(L. chinense,L. tulipifera and L. chinese tulipifera) to determine variation and genetic stability of growth,in terms of height and ground diameter,for two-year-old seedlings. Progeny testing at the seedling stage was implemented simultaneously in three sites,with open-pollinated offspring of Liriodendron chinense taken as the control. Also,the Eberhart and Russell analysis was used with a regression of genetic stability for the 39 combinations. Results showed that seedling growth for all 39 mating combinations was significantly greater (P<0.01) than the control. Seedling growth from high to low was:inter-specific mating > intra-specific mating > backcross. No significant differences were found between progenies of reciprocal crosses with the same parents,whereas significant differences(P<0.01)existed among combinations within the same mating types. Furthermore,the Eberhart and Russell analysis showed that mating combination J L had good potential due to fast growth and high genetic stability,whereas BK1 H and Z WYS1 had fast growth but low genetic stability. Thus,to utilize the hybrid vigor within Liriodendron,selection of mating parents should be a priority consideration.[Ch,5 tab. 16 ref.]

ZHANG Xiao-fei, LI Huo-gen, YOU Lu-xiang, CAO Jian. Variation and genetic stability of two-year-old Liriodendron seedling growth for 39 mating combinations[J]. Journal of Zhejiang A&F University, 2011, 28(1): 103-108. doi: 10.11833/j.issn.2095-0756.2011.01.016
Citation: ZHANG Xiao-fei, LI Huo-gen, YOU Lu-xiang, CAO Jian. Variation and genetic stability of two-year-old Liriodendron seedling growth for 39 mating combinations[J]. Journal of Zhejiang A&F University, 2011, 28(1): 103-108. doi: 10.11833/j.issn.2095-0756.2011.01.016

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