[1]马凤翔,陈晓阳,李悦.高山松与油松×云南松人工杂种损耗谱参数研究[J].森林与环境学报,2016,36(01):86-91.[doi:10.13324/j.cnki.jfcf.2016.01.014]
　MA Fengxiang,CHEN Xiaoyang,LI Yue.Study on loss spectrum parameters in Pinus densata and artificial hybrid of P. tabuliormis×P. yunnanensis[J].,2016,36(01):86-91.[doi:10.13324/j.cnki.jfcf.2016.01.014]
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高山松与油松×云南松人工杂种损耗谱参数研究()
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《森林与环境学报》[ISSN:2096-0018/CN:35-1327/S]

卷:
36
期数:
2016年01期
页码:
86-91
栏目:
出版日期:
2016-01-15

文章信息/Info

Title:
Study on loss spectrum parameters in Pinus densata and artificial hybrid of P. tabuliormis×P. yunnanensis
作者:
马凤翔1;  陈晓阳2; 3;  李悦2
1. 北京林业大学理学院, 北京 100083;
2. 北京林业大学生物科学与技术学院, 北京 100083;
3. 华南农业大学林学院, 广东 广州 510642
Author(s):
MA Fengxiang1;  CHEN Xiaoyang2; 3;  LI Yue2
1. College of Science, Beijing Forestry University, Beijing 100083, China;
2. College of Biological Science and Biotechnology, Beijing Forestry University, Beijing 100083, China;
3. College of Forestry, South China Agricultural University, Guangzhou, Guangdong 510642, China
关键词:
高山松; 云南松; 油松; 人工杂种; 损耗
Keywords:
Pinus densata Masters; P. yunnanensis Faranch; P. tabuliormis Carrière; artificial hybrid; loss coefficient
分类号:
S712
DOI:
10.13324/j.cnki.jfcf.2016.01.014
摘要:
利用13个油松×云南松杂交子代家系、母本6个单株自由授粉混合子代、父本5个单株的自由授粉混合子代及高山松林芝种群为对象,测定和比较分析了杂种子代、亲本子代及高山松群体苗木针叶的电学参数—损耗系数,研究了损耗系数在不同群体间的变异与联系。通过对损耗系数谱线拟合,构建了高山松、油松、云南松及人工杂种针叶的损耗系数模型。结果表明,损耗系数谱在种(杂种)间差异显著,损耗随频率的变化趋势表现了各物种的特点。在5-10 Hz频段,种(杂种)间差异小。大于10 Hz后,杂种和高山松与油松差异小,杂种曲线走势几乎与油松重合,凸显母本效应强,高山松和云南松损耗谱线走势相反,高山松为凹形,油松为凸形,标示出二者损耗机理上的不一致,或相反。大于15 Hz以后,高山松的损耗系数最小,体现出高山松耗能最小的超亲性状。聚类分析显示杂种组合、高山松在损耗性状上有偏母特性。损耗与试验地温度、降水、经度相关,达到极显著水平。损耗与越冬死亡率、2年生苗高、苗冠高、死亡率显著正相关,与2年生存活率、封顶率显著负相关。
Abstract:
In this study, artificial hybrid combinations of Pinus tabuliformis and P. yunnanensis, female multi-plant offspring mixed samples and male multi-plant offspring mixed samples, which were obtained from the natural distribution core area and edge area that could be representative population of P. tabuliformis and P. yunnanensis and P. densata from Linzhi, Tibet, were selected to measure their electrical parameters, or loss coefficients. It showed that there existed significant variations among species and artificial hybrid combinations in loss parameters. Spectrum models of species were constructed for loss through each spectral fitting of theirs. Loss coefficient spectral analysis of the species and artificial hybrid showed as follows. In 5-10 Hz, no significant differences occurred among species. Beyond 10 Hz, differences among P. tabuliformis, P. densata and hybrids were insignificant, and hybrid curve almost coincided with the trend of P. tabuliformis, highlighting the strong maternal effect. P. densata and P. yunnanensis moved on an opposite trend, with P. densata being concave, while P. tabuliformis convex, which might be marked out on the inconsistencies between the two loss mechanisms, or vice versa. When over 15 Hz, the loss coefficient of P. densata was the smallest, reflecting its transgressive characteristics for minimum energy consumption. Loss was associated with indices and adaptability of seedling growth, with the coefficient reaching a significant level, and it was closely related to experimental environment factors such as longitude, altitude, annual average temperature and precipitation. The finding also indicated that the loss had a significant positive correlation with wintering mortality, the height, crown, and mortality of biennial seedlings, and significant negative correlation with biennial survival and biennial cap rate.

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备注/Memo

备注/Memo:
收稿日期:2015-5-19;改回日期:2015-7-24。
基金项目:国家自然科学基金项目"高海拔生境油松、云南松、高山松种群及种间杂种适应性研究"(31070591)。
作者简介:马凤翔(1970-),女,副教授,博士,从事大学物理教学及物理学在林学中的应用研究。
通讯作者:陈晓阳(1958-),男,教授,博士,从事林木遗传育种研究。E-mail:xychen@scau.edu.cn。
更新日期/Last Update: 1900-01-01