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李晓琼,苏勇,郭文锋,兰俊,熊涛,张磊,温远光.桉树优良无性系选育研究[J].广西科学,2015,22(6):586-592,599. [点击复制]
- LI Xiao-qiong,SU Yong,GUO Wen-feng,LAN Jun,XIONG Tao,ZHANG Lei,WEN Yuan-guang.Study on Eucalyptus Clones for Superior Variety Selection[J].Guangxi Sciences,2015,22(6):586-592,599. [点击复制]
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| 桉树优良无性系选育研究 |
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李晓琼1,2, 苏勇3, 郭文锋4, 兰俊3, 熊涛3, 张磊3, 温远光1,2
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| (1.广西大学林学院, 亚热带农业生物资源保护与利用国家重点实验室, 广西南宁 530004;2.广西大学林学院, 广西高校林业科学与工程重点实验室, 广西南宁 530004;3.广西国有东门林场, 广西扶绥 532100;4.广西农业科学院, 广西遗传改良与生物技术重点开放实验室, 广西南宁 530007) |
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| 摘要: |
| [目的]通过对39个桉树(Eucalyptus)无性系多品质性状的综合评价,筛选出速生、干形好的优良无性系,为桉树的良种选育提供科学参考。[方法]运用方差分析、主成分分析等方法,对各桉树无性系品质进行综合比较与优劣排序。[结果]方差分析结果表明39个无性系的树高(H)、胸径(DBH)、单株材积(SV)、枝下高(LBH)、干形(SF)等性状差异显著。主成分分析结果显示:在39个无性系中,综合分值排前五的无性系分别是567-4,629-3,631-2,600-5和645-4,这5个无性系具有生长快、干形好等优良聚合性状;而649-9,623-3,664-2和628-3在单一性状(如单株材积或材性)表现优秀。[结论]综合筛选出的5个优良无性系可用于大面积推广,而单一性状优秀的4个无性系对未来桉树育种及定向性状改良具有重要价值。 |
| 关键词: 桉树 无性系 品质 主成分分析 |
| DOI： |
| 投稿时间：2015-09-09 |
| 基金项目:国家自然科学基金项目(31460121,31360458,31460115),中国博士后基金项目(2014M552286),广西农科院科技发展基金项目(2015YT97),广西自然科学基金项目(2011GXNSFB018053),亚热带农业生物资源保护与利用国家重点实验室基金项目和广西博士后基金专项项目[桂发(2010)30号]资助。 |
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| Study on Eucalyptus Clones for Superior Variety Selection |
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LI Xiao-qiong1,2, SU Yong3, GUO Wen-feng4, LAN Jun3, XIONG Tao3, ZHANG Lei3, WEN Yuan-guang1,2
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| (1.State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Forestry College of Guangxi University, Nanning, Guangxi, 530004, China;2.Guangxi Colleges and Universities Key Laboratory of Forestry Science and Engineering, Forestry College of Guangxi University, Nanning, Guangxi, 530004, China;3.Dongmen State Forest Farm of Guangxi, Fusui, Guangxi, 532100, China;4.Guangxi Crop Genetic Improvement and Biotechnology Lab, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, 530007, China) |
| Abstract: |
| [Objective] The multiple characteristics of 39 Eucalyptus clones were comprehensively evaluated in order to select excellent clones with fast growth and best timber characteristics and provide scientific reference for superior species selection and breeding of Eucalyptus plantations.[Methods] We compared the quality of these clones and ranked them by variance analysis combined with the principal component analysis (PCA).[Results] The results of variance analysis showed that there were significant differences in height (H), diameter at breast height (DBH), individual volume (SV), live branches height (LBH), and stem form (SF) among 39 clones.Based on comprehensive comparisons using PCA method, the top five clones were 567-4, 629-3, 631-2, 600-5 and 645-4, respectively;While the clones 649-9, 623-3, 664-2 and 628-3 owned single excellent trait (the highest SV or the best SF).[Conclusion] The 5 clones with comprehensive excellent quality can be popularized widely because of their faster growth and high form quality, and the 4 clones superior in single trait have important values in future breeding and target properties improvement of Eucalyptus. |
| Key words: Eucalyptus clone quality principal component analysis |
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