摘要
三角枫木材纤维组织比量由髓心向外迅速减少，上下波动１３年后稳定减少；导管比量的径向变异与之相反；木射线比量径向变异保持恒定不变。微纤丝角由髓心向外逐渐减少，根据组织比量和微纤丝角的径向变异。
From pith outward,the fibre proportion of Acer buergerianum decreased rapidly,but for trees older than 13 years,the decrease of the proportion slowed down.The vessel proportion variation was contrary to that of fibre proportion.The ray proportion remained stable in stems.Microfibrillar angle within the S 2 layer of the secondary wall in fibres decreased rapidly from pith outward.Based on the above features,the duration of the juvenile period is about 13 years old.
出处
《安徽农业大学学报》
CAS
CSCD
1997年第1期14-17,共4页
Journal of Anhui Agricultural University
关键词
三角枫
木材
细胞组织比量
微纤丝角
幼龄量
cer buergerianum Tissue proportion Microfibrillar angle Juvenlie period
