| 粉单竹纸浆材材性的地理变异 |
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| 引用本文： | 杨秀艳,傅懋毅.粉单竹纸浆材材性的地理变异[J].东北林业大学学报,2009,37(6). |
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| 作者姓名： | 杨秀艳 傅懋毅 |
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| 作者单位： | 中国林业科学研究院亚热带林业研究所,富阳,311400 |
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| 基金项目： | 国际热带木材组织(ITTO)合作项目 |
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| 摘 要： | 以8个产地的粉单竹群体为研究材料,对其纸浆材材质性状进行遗传变异分析,结果表明:粉单竹的纤维长度、纤维素、戊聚糖和1% NaOH抽出物含量在产地间存在极显著或显著差异.木素含量和纤维长度的绝对变化量很小,无选择意义;苯醇抽出物及灰分含量在个体间变化很大,可进行优良个体的选择;纤维素、戊聚糖含量和纤维长度的遗传力高,受遗传控制强;1% NaOH抽出物受中等强度遗传控制;木素、灰分含量和纤维长宽比受遗传控制最弱.纤维形态性状与化学成分之间无明显相关关系;戊聚糖含量和1% NaOH抽出物呈0.1水平显著正相关,纤维宽度与长度呈0.1水平显著负相关;纤维长宽比与纤维长度具有极显著正相关,而与宽度具有极显著负相关.纤维长度及纤维长宽比呈现纬度上从南到北(海拔上从低到高)逐渐减小的地理变异模式,灰分含量呈现随经度增加而增加的变化趋势.通过比较认为,广东怀集、广西南宁和广西桂林3个产地具有优良的纸浆材材质性状.
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| 关 键 词： | 粉单竹 产地 竹材性状 地理变异 |
Geographic Variations in Wood Properties of Bambusa chungii for Pulpwood |
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| Yang Xiuyan,Fu Maoyi.Geographic Variations in Wood Properties of Bambusa chungii for Pulpwood[J].Journal of Northeast Forestry University,2009,37(6). |
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| Authors: | Yang Xiuyan Fu Maoyi |
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| Institution: | Yang Xiuyan,Fu Maoyi(Research Institute of Subtropical Forestry,Chinese Academy of Forestry,Fuyang 311400,P.R.China) |
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| Abstract: | An experiment was conducted to study the genetic variations of wood properties of Bambusa chungii for pulpwood from eight provenances.Results indicate that fiber length,cellulose,pentosan and content of 1% NaOH extraction have significant differences among eight provenances.The absolute variations of lignin content and fiber length for different provenances are low,which suggests that the two traits are unnecessary to be included in the selection program.Superior clump with lower benzo-alcohol extractive an... |
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| Keywords: | Bambusa chungii Provenances Wood properties Geographic variations |
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