不同种源桤木制浆造纸性能的遗传变异  

Genetic variation of pulping performance of Alnus cremastogyne of different provenances

作　　者：于东阳[1,2] 梅芳[1,2] 王军辉[2] 李林[2] 夏良放[3] 余良富[3] 

机构地区：[1]三峡大学,湖北宜昌443002 [2]中国林业科学研究院林业研究所,国家林业局林木培育重点实验室,北京100091 [3]中国林业科学研究院亚热带林业实验中心,江西分宜336600

出　　处：《河南农业大学学报》2013年第6期703-709,共7页Journal of Henan Agricultural University

基　　金：十二五国家科技支撑项目(2012BAD01B06)

摘　　要：对6年生9个种源的桤木木材化学成分及成纸后的纸浆性能做了研究.结果表明,不同种源间生长性状(胸径)差异不显著,材性性状(南向pilodyn值)及化学成分达到了1%极显著水平;水分与纸浆硬度呈显著正相关;生长性状(胸径)与产地因子并没有一定的相关性.密度性状(南向Pilodyn值)、耐折度及耐破指数与经度呈正相关,1%NaOH抽出物与纬度呈正相关,综纤维素与纬度呈负相关,水分和原浆白度与年降水量呈负相关,撕裂指数和苯醇抽出物与年均湿度呈正相关.经综合分析可知,桤木在材性和化学成分、成浆性能方面有着较大的种源选择价值,G种源被评价为最优种源.Wood chemical composition and pulping performance of six-year-old Alnus cremastogyne of nine provenances were investigated. The results showed that the growth traits had no significant difference among provenances, but there existed significant difference among provenances in woody traits （pilodyn value of southern） and chemical composition; The growth trait （ diameter at breast height） and origin factors were not significantly correlated. The density trait （pilodyn value of southern）, fold-ng strength and burst index had positive correlations with longitude. There was positive correlation between 1% NaOH extractives and latitude ; tear index and Benzyl alcohol extraetives had positive correlations with annul average precipitation, while there was negative correlation between holo cellulose and latitude, water content, pulp brightness and annul precipitation. Comprehensive analysis showed that Alnus cremastogyne had higher provenance selection worth on wood property of G provenance particularly.

关 键 词：桤木 造纸 木材化学成分 种源选择 

分 类 号：S781.42[农业科学—木材科学与技术]