文献类型：期刊文献

中文题名：马尾松三代选择群体生长性状变异及选择研究

英文题名：Variation and Selection of Growth Character on the Young Third Generation of Pinus massoniana

作者：张振[1] 余启新[2] 滕国新[3] 金国庆[1] 丰忠平[2] 周志春[1]

第一作者：张振

机构：[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;[2]浙江省淳安县新安江开发总公司;[3]浙江省兰溪苗圃马尾松国家良种基地

年份：2017

卷号：37

期号：2

起止页码：266-273

中文期刊名：植物研究

外文期刊名：Bulletin of Botanical Research

收录：CSTPCD;;北大核心:【北大核心2014】；CSCD:【CSCD2017_2018】；

基金："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)~~

语种：中文

中文关键词：马尾松;生物量;生长量;育种值

外文关键词：Pinus massoniana ; biomass; growth ; breeding value

分类号：S718.46

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(D——0)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。
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（ Do ）, 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.