| 马尾松1代育种群体不同种源亲本表现评价 |
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| 引用本文： | 罗群凤,杨章旗,黄永利,陈新华,余慧连.马尾松1代育种群体不同种源亲本表现评价[J].福建林学院学报,2017,37(2). |
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| 作者姓名： | 罗群凤 杨章旗 黄永利 陈新华 余慧连 |
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| 作者单位： | 1. 广西壮族自治区林业科学研究院,广西南宁530002;国家林业局马尾松工程技术研究中心,广西南宁530002;2. 南宁市林业科学研究所,广西南宁,530107 |
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| 基金项目： | 国家科技支撑计划项目，广西八桂学者专项经费项目，广西自然科学基金项目，广西林科院基本科研业务费专项 |
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| 摘 要： | 为深入了解选自优良种源的育种亲本在遗传改良中的表现,以马尾松1代种子园半同胞子代测定试验林为研究对象,通过分析子代家系生长量、亲本育种值、实际改良增益及选择2代优树等,评价广西桐棉、古蓬、云开大山3个优良种源在马尾松传统改良中的表现与价值。结果表明,19年生马尾松一代种子园半同胞子代家系平均树高为15.99 m,平均胸径为19.66 cm,平均单株材积为0.246 0 m~3,比本地商品种和湿地松对照分别提高了65.10%和35.16%。与优良种源对照相比,获得了8.30%的树高实际改良增益、12.70%的胸径实际改良增益、33.33%的材积实际改良增益。来自不同种源的亲本在子代测定中的表现存在一定差异,在育种值方面,选自桐棉、古蓬、云开大山3个种源的亲本分别为0.001 2、-0.000 8、0.001 1。子代树高生长量以古蓬种源亲本最高,平均为16.11 m,胸径生长量以桐棉种源亲本最大,平均为19.86 cm。16株2代优树中,母本来自桐棉、古蓬、云开大山种源的分别有2、10、4株。母本来自云开大山种源的家系,生长表现非常突出的单株比例更高。结果还表明,亲本来自桐棉种源的家系相对桐棉种源混系对照在树高上获得了较高的实际改良增益;而来自古蓬种源的家系相对古蓬种源混系对照在胸径上获得了较大的实际改良增益。
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| 关 键 词： | 马尾松 种源 遗传测定 子代 |
Evaluation on the performance of parents of different provenances in the first generation breeding population of Pinus massoniana |
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| LUO Qunfeng,YANG Zhangqi,HUANG Yongli,CHEN Xinhua,YU Huilian.Evaluation on the performance of parents of different provenances in the first generation breeding population of Pinus massoniana[J].Journal of Fujian College of Forestry,2017,37(2). |
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| Authors: | LUO Qunfeng YANG Zhangqi HUANG Yongli CHEN Xinhua YU Huilian |
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| Abstract: | In order to deeply comprehend the performance of breeding parents selected from the superior provenance in the genetic improvement,the experimental forest of the half sib progeny of the first generation seed orchard of Pinus massoniana was researched,through analyzing the growth of families,breeding value,actual improved gain and selecting superior trees of the second generation,to evaluate the performance and value of the three superior provenances from Tongmian,Gupeng and Yunkai mountain in the traditional improvement ofP.massoniana in Guangxi.The results indicated that the average height was 15.99 m in 19-year-old family of the half sib progeny,average diameter at breast height (DBH) for 19.66 cm,average individual volume was 0.246 0 m3,which was 65.10％ higher than local commodity species and 35.16％ higher than Pinus elliottii.Compared with the superior provenance,it achieved significant improvement effect including 8.30％ of actual improved gain of height,12.70％ of actual improved gain of DBH,33.33％ of the actual improved gain of volume.There were some differences between parents selected from different provenances in the progeny test,and each had its characteristics.The breeding value of provenances of Tongmian,Gupeng and Yunkai mountain were respectively:0.001 2,-0.000 8,0.001 1.The height growth increment of Gupeng was the highest with average diameter of 16.11 m,and the growth of DBH of Tongmian provenance was the largest with the average of 19.86 cm.There were 16 trees of the second generation,and 2,10,4 superior trees from Tongnian,Gupeng,Yunkai mountain respectively.The female parent from Yunkai mountain had more families and individuals that had a higher growth performance.The results also showed that the parents from Tongmian could obtain a higher actual improved gain than Tongmian mixed line on the tree height;the parents from Gupeng had a larger actual improved gain than Gupeng mixed line on DBH. |
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| Keywords: | Pinus massoniana Lamb provenance genetic test progeny |
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