| 四川5种丛生竹的秆形特征比较 |
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| 引用本文： | 丁上,唐玉梅,张朝艳,赖永平,甘小洪.四川5种丛生竹的秆形特征比较[J].贵州农业科学,2016(11):130-133. |
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| 作者姓名： | 丁上 唐玉梅 张朝艳 赖永平 甘小洪 |
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| 作者单位： | 西华师范大学 生命科学学院,四川 南充,637009 |
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| 基金项目： | "十二五"农村领域国家科技支撑计划项目"竹子优良种质选育技术研究与示范"(2012BAD23B05) |
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| 摘 要： | 为四川乡土丛生竹资源的开发、栽培和利用提供理论依据,采用随机取样方法对四川常见的5种大径丛生竹的秆型特征进行对比研究。结果表明,5种丛生竹竹秆鲜重均随胸径的增加而增大,同一胸径下慈竹的竹秆鲜重相对较小,硬头黄的竹秆鲜重相对较大。随相对高度的增加,5种丛生竹的相对直径均呈下降趋势,其中梁山慈和慈竹下降最快,其尖削度相对较大。相对壁厚随高度的变化呈逐渐减小趋势,其中硬头黄竹的相对壁厚的变化幅度最大。节间长度均随节位的增加呈先增加后逐渐减小趋势。相对慈竹而言,梁山慈在竹材质量和生物产量方面具有优势,粉单竹和料慈竹在板材加工利用方面具有优势,硬头黄竹在竹材质量、生物产量和板材加工利用方面均不具优势。
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| 关 键 词： | 丛生竹 秆形特征 材质 |
Comparison of Culm Form of Five Sympodial Bamboo Species in Sichuan |
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| Abstract: | To provide references for development, cultivation and utilization of native sympodial bamboo resources in Sichuan, the random sampling method was employed to compare the culm forms of five sympodial bamboo species in Sichuan.Results: The fresh weight of these bamboos increased with the increase of DBH, thereinto that of B.emeiensis was relatively small, and that of B.rigida is relatively large.With the increase of the relative height of the five sympodial bamboos, the relative diameter showed a downward trend, in which D.farinosus and B.emeiensis droped quickly, indicating that their taper was relatively large.The relative wall thickness of the five sympodial bamboos varied with the height, showing a decreasing trend.There was a trend between internode length and the node number, which was first increased and then decreased gradually.Compared to B.emeiensis, D.farinosus had advantages in the quality of bamboo and biological yield, B.chungii and B.Distegia had advantages in sheet metal processing and utilization of bamboo, and B.rigida in terms of quality, biological yield and sheet metal processing and utilization were of no significant advantage. |
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| Keywords: | sympodial bamboo culm form texture of material |
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