杨树胶合板材纸浆材新品种鲁林1号、2号、3号选育

通过杨树的天然杂交和人工控制杂交,经过多年多点苗期试验和无性系对比试验,综合评价了筛选出的鲁林1号、2号和3号3个适宜制浆造纸的杨树优良新品种,它们具有生长量大、造林成活率高、抗病虫、材质好等特点,适宜制浆造纸和制作胶合板用材。其中:鲁林1号杨为雌株,是从美洲黑杨228-379(Populus deltoides‘228-379’)优树上采集天然杂交种子选育而成,在莒县和长清区试验点6年生平均单株材积分别超过对照I-107(P.×euramericana‘Neva’)26.5%和14.5%。该品种树干圆满、侧枝细小、出材率高、木材制作胶合板性能优良,特别适合培育大径级胶合板用材,也可培育纸浆材。鲁林2号和3号都是通过室内水培人工控制杂交培育而成,鲁林2号杨为雌株,母本为欧美杨I-72(P.×euramericana‘San martino’)、父本为美洲黑杨PE-3-71(P.deltoides‘PE-3-71’),4～6年生平均单株材积超过对照I-69杨(P.del-toides‘Lux’)24.7%～59.0%,特别适宜培育纸浆材;鲁林3号杨为雄株,母本为美洲黑杨I-69,父本为美洲黑杨PE-3-71,4～6年生平均单株材积超过对照I-69杨25.1%～62.5%,适宜培育胶合板材,也可以培育纸浆材。

Breeding of new poplar varieties Lulin 1,Lulin 2 and Lulin 3 for plywood and pulpwood purpose

Three new poplar clones were selected from the F1 populations obtained both from open pollination and controlled pollination by testing traits such as growth rate,asexual propagation ability,pest & disease resistance,wood mechanical property,wood chemical components,pulp property,plywood property and so on.The selected new poplar clones were quality varieties with traits of high growth rate,high asexual propagation ability,high resistance to pest & disease,quality mechanical properties,and were suitable for...