桤木优良无性系苗期的初步选择A Preliminary Seedling Selection of Superior Clones of Alnus cremastogyne
王贵珍,陈炙,杨汉波,黄振,徐峥静茹
WANG Gui-zhen,CHEN Zhi,YANG Han-bo,HUANG Zhen,XUZHENG Jin-ru
摘要(Abstract)：
开展林木优良无性系选择,以获得最大遗传增益和经济效益。本研究针对桤木优良半同胞家系中的优良个体,通过扦插繁育技术建立了476个无性系,观测苗高和地径苗期生长性状,并进行差异显著性分析,利用隶属函数法结合主成分分析赋予各性状权重值,对各无性系进行综合评价。结果显示:无性系间的苗高和地径差异均达到极显著水平(P<0.01)。根据两个性状的隶属函数值的均值,将无性系划分为7个等级,其中3个无性系被确定为1级,这些无性系苗高和地径的均值较整个群体均值分别提高了224.3%和82.3%;被评为2级的无性系有9个,被评为3级的无性系有45个,可作为增加桤木遗传多样性候选对象。
The goals of this study were to select superior clones of alder(Alnus cremastogyne),and to achieve maximum genetic gains and economic benefits.A total of 476 alder clones obtained through cuttage were used to study the height and ground diameter and significance analysis of their difference.By the method of membership function in fuzzy mathematics and principal component analysis,aiming to provide the weight value of each character and the comprehensive evaluation of the clones.The results showed that there were significant differences(P<0.01) in each of two traits(height and ground diameter).According to the average of the membership function value,the clones were classified into seven grades.Three clones were identified as grade 1,of which the height and ground diameter were 224.3% and 82.3% higher than average,respectively; while nine clones were classified as grade 2 and 45 clones were classified as grade 3,and these might be used as candidates to increase genetic diversity.
关键词(KeyWords)：
桤木;无性系;苗期选择
Alnus cremastogyne;Clone;Seedling selection
基金项目(Foundation): 桤木突破性新品种选育与育种材料创新(2016NZY0035)
作者(Author):
王贵珍,陈炙,杨汉波,黄振,徐峥静茹
WANG Gui-zhen,CHEN Zhi,YANG Han-bo,HUANG Zhen,XUZHENG Jin-ru
DOI: 10.16779/j.cnki.1003-5508.2019.03.013
参考文献(References)：
- [1] 李春旭,刘桂丰,刘宇,等.盆栽白桦优良无性系苗期的初步选择[J].北京林业大学学报,2017,39(2):16～23.
- [2] 杨细明.雷公藤(Tripterygium wilfordii Hook.f.)优良无性系选育技术的研究[D].福建农林大学,2008.
- [3] 王明庥.论无性系林业:概念和应用[J].林业科技开发,1992,(1):2～4.
- [4] Arnold R,Gleed J.Raising and managing radiata pine cuttings for production forests [J].Aust,1985,48:199～206.
- [5] 杨志成.优良阔叶树种-桤木的分布、生长和利用[J].林业科学研究,1991,4(6):643～648.
- [6] 贺超英,陈益泰.桤木种源苗期生长和固N能力的变异[J].林业科学研究,2002,15(6):680～686.
- [7] 周小玲.4个四川桤木品系苗木的生理生态机理研究[D].中南林业科技大学,2007.
- [8] 陈清堤.杉木无性系造林对比试验及重复力估测[J].林业调查规划,2010,35(6):140～144.
- [9] 周永学,苏晓华,樊军锋,等.引种欧洲黑杨无性系苗期生长测定与选择[J].西北农林科技大学学报,2004,32(10):102～106.
- [10] 施季森,何祯祥.林木无性繁殖及其在遗传改良中的地位[J].世界林业研究,1994,(1):25～30.
- [11] 齐明,何贵平,徐肇友,等.偏冠方式营建杉木种子园技术研究[J].宁夏农林科技,2013,54(10):19～20.
- [12] 刘代亿,李根前.云南松优良家系及优良个体苗期选择研究[J].西北林学院学报,2009,24(4):67～72.
- [13] 陈慧玲,张新叶,黄国伟,等.美洲黑杨杂交无性系苗期性状联合选择[J].西北林学院学报,2018,33(2):88～93.
- [14] 茹广欣,张国栓,冯胜,等.黑杨无性系的苗期选择[J].河南农业大学学报,2002,36(2):143～146.
- [15] 赵曦阳,张志毅.毛白杨种内杂交无性系苗期生长模型构建[J].北京林业大学学报,2013,35(5):15～21.
- [16] 安三平,王丽芳,王美琴,等.欧洲云杉无性系苗期选育[J].东北林业大学学报,2011,39(12):16～19.