[1]张勰,徐清乾,顾杨传,等.杉木第2代种子园自由授粉子代测定与亲本结实性状联合选择[J].浙江林业科技,2017,37(04):1-5.[doi:10.3969/j.issn.1001-3776.2017.04.001]
 ZHANG Xie,XU Qing-qian,GU Yang-chuan,et al.Selection by Open-Pollination Progeny Test of the 2nd Generation Cunnihamia lanceolata Seed Orchard and Their Parent Cone Traits[J].Journal of Zhejiang Forestry Science and Technology,2017,37(04):1-5.[doi:10.3969/j.issn.1001-3776.2017.04.001]
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杉木第2代种子园自由授粉子代测定与亲本结实性状联合选择()
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《浙江林业科技》[ISSN:1001-3776/CN:33-1112/S]

卷:
37
期数:
2017年04期
页码:
1-5
栏目:
出版日期:
2017-09-30

文章信息/Info

Title:
Selection by Open-Pollination Progeny Test of the 2nd Generation Cunnihamia lanceolata Seed Orchard and Their Parent Cone Traits
作者:
张勰1徐清乾1顾杨传2杨建华2黄帆1
1. 湖南省林业科学院,湖南长沙 410004;2. 会同县林业科学研究所,湖南会同 418300
Author(s):
ZHANG Xie1 XU Qing-qian1 GU Yang-chuan2YANG Jian-hua2HUANG Fan1
1. Hunan Academy of Forestry, Changsha 410004, China; 2. Huitong Forestry Institute of Hunan, Huitong 418300, China
关键词:
杉木第2代种子园子代测定结实性状
Keywords:
Cunninghamia lanceolata the 2nd gerneration seed orchard progeny test cone trait
分类号:
S791.27
DOI:
10.3969/j.issn.1001-3776.2017.04.001
文献标志码:
A
摘要:
2011年4月,采用湖南省会同县第2代杉木Cunninghamia lanceolata(Lamb.)Hook种子园自由授粉子代的1年生裸根苗进行造林,参试家系共35个,以种子园混合种为对照,2012-2015年连续4 a进行树高、胸径、球果质量测定,并根据测定结果进行早期选择。结果表明,树高、胸径在家系间差异均达显著水平,6年生时平均树高、胸径、单株立木材积为分别为4.17 m,5.02 cm,0.005 91 m3;2012-2015年的树高遗传力为0.344 ~ 0.434;6年生时的胸径、材积遗传力分别为0.466,0.409。从参试的35个家系中选出9个优良家系,6年生时其平均树高、胸径、单株立木材积分别为4.90 m,6.0 cm,0.008 41m3,分别超出群体均值的18.2%,24.1%,42.3%,遗传增益分别为6.36%,8.95%和17.33%。综合考虑9个优良家系的无性系母株的结实性状,联合选出4个高产速生的无性系实生子代,单株平均球果重量达7.7 kg。
Abstract:
1-year bare-rooted Cunninghamia lanceolata seedlings from open-pollination progenies of the 2nd generation seed orchard in Huitong, Forestry Insititute of Hunan province were planted in 2011 in Guangping of Huitong, Hunan province. 35 famililes were tested with mixed seed and seedling as control. Continuous investigations had been conducted from 2012 to 2015. The result demonstrated that it had great difference of seedling height and DBH among families. Mean seedling height, DBH and single tree volume of 6-year seedlings was 4.17m, 5.02cm and 0.005 91m3. Height growth from 2012 to 2015 of tested families indicated that mean heritability of height was from 0.344 to 0.434. Mean DBH and volume heritability of 6-year seedlings was 0.466, 0.409. 9 families were selected from the tested 35 ones, their mean height, DBH and single tree volume of 6-year seedlings was 4.90m, 6.0cm, 0.00841m3, and was 18.2%, 24.1% and 42.3% higher than that of means of 35 families. The genetic gain of growth traits was 6.36%, 8.95% and 17.33%. Intergrated evaluation on cone traits of mother tree of selected 9 families resulted 4 progeny of clones with fast-growing and high-yield characteristics was chosen with their mean cone weight of 7.7kg each tree.

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备注/Memo

备注/Memo:
收稿日期:2017-02-09 ;修回日期:2017-05-29
基金项目:“十二五”国家科技支撑计划(2015BAD09B010101)
作者简介:张勰,助理研究员,从事杉木遗传育种研究;E-mail:zhangxiei3@163.com。
更新日期/Last Update: 2017-08-30