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植物研究 ›› 2017, Vol. 37 ›› Issue (2): 266-273.doi: 10.7525/j.issn.1673-5102.2017.02.015

• 论文 • 上一篇    下一篇

马尾松三代选择群体生长性状变异及选择研究

张振1, 余启新2, 滕国新3, 金国庆1, 丰忠平2, 周志春1   

  1. 1. 中国林业科学研究院亚热带林业研究所, 浙江省林木育种技术研究重点实验室, 国家林业局马尾松工程技术研究中心, 富阳 311400;
    2. 浙江省淳安县新安江开发总公司, 淳安 311700;
    3. 浙江省兰溪苗圃马尾松国家良种基地, 兰溪 321100
  • 收稿日期:2016-11-07 出版日期:2017-03-15 发布日期:2017-03-11
  • 通讯作者: 金国庆,E-mail:jgqin@163.com E-mail:jgqin@163.com
  • 作者简介:张振(1986-),男,助理研究员,主要从事马尾松遗传育种与改良。
  • 基金资助:
    “十二五”国家科技支撑课题“南方针叶树高世代育种技术研究与示范”(2012BA01B02);国家自然科学基金资助项目(31600533);浙江省农业(林木)新品种选育重大科技专项重点课题(2016C02056-4)

Variation and Selection of Growth Character on the Young Third Generation of Pinus massoniana

ZHANG Zhen1, YU Qi-Xin2, TENG Guo-Xin3, JIN Guo-Qing1, FENG Zhong-Ping2, ZHOU Zhi-Chun1   

  1. 1. Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Key Laboratory of Tree Breeding of Zhejiang Province, Engineering Research Center of Masson Pine of State Forestry Administration, Hangzhou 311400;
    2. Development Corporation of Xin'an river of Chun'an Country, Zhejiang Province, Chun'an 311700;
    3. National fine species base of pinus massoniana of Lanxi nursery, Lanxi 321100
  • Received:2016-11-07 Online:2017-03-15 Published:2017-03-11
  • Supported by:
    This work was supported by "Twelfth five-year" national science and technology support project(2012BA01B02);National natural science foundation of China(31600533);Major science and technology special project of bamboo new agricultural varieties breeding in Zhejiang province(2016C02056-4)

摘要: 以浙江省淳安县姥山林场的6×6半双列遗传交配设计的三代测定幼林为对象,分析幼林期(2、3和5 a)的生长性状的遗传参数和育种值,及2 a生时生物量的累积与分配。结果表明,马尾松幼林期不同杂交组合间的树高、地径、冠幅和活枝数均存在显著的遗传差异,且生物量在2 a生亦存在显著的遗传差异。杂交组合2 a生的地上生物量占植株总生物量的87.17%。幼林期生长性状以树高的增长量最大,5 a生较2 a生增长了4.23倍。采用综合育种值法,依据预测的树高(H)育种值为主,结合地径(D0)和2 a生茎干生物量(Bs)指标的配合选择方式,以入选率20%优选出杂交组合分别为22×44、33×22、40×44。以5 a生时树高、地径的单株育种值为依据,2%的入选率优选出16个单株,其树高、地径、冠幅及活枝数平均增益分别为1.07 m、1.58 cm、0.32 m和4.67个。

关键词: 马尾松, 生物量, 生长量, 育种值

Abstract: We analyzed the genetic parameters, breeding value, accumulation and distribution of 2-year raw biomass with a half diallel cross among 6×6 on three generation young growth period of forest on Laoshan farm in Zhejiang Province. There were significant genetic differences among the tree height, ground diameter, crown breadth and number of living branch in the young period of Pinus massoniana. There were also significant genetic differences in the period of 2-year biomass between different hybrid combinations. The ground biomass accounted for 87.17% of the total plant biomass in 2-year hybrid combination. The height growth was the largest in the young period of tree growth trait. The height growth was increased by 4.23 times from 5 to 2 years. According to method of comprehensive breeding value, the tree height(H) breeding value combined with conjointly diameter(D0), and 2 a raw stem biomass index(Bs) to choose higher survival rate of hybrid combinations. The higher survival rate combinations were 22×44, 33×22 and 40×44 based on 20% year old open pollination progenies. Based on the value of tree height and ground diameter of plant breeding, 16 number of plant were chosen accounting for 2%. The average gain were 1.07 m(tree height), 1.58 cm(ground diameter), 0.32 m(crown breadth) and 4.67(living branch number), respectively.

Key words: Pinus massoniana, biomass, growth, breeding value

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