1) narrow crown black-white poplar
窄冠黑白杨
1.
In our study, it is proved that the heart wood proportionment of narrow crown black poplars and narrow crown black-white poplar is small, which makes for improving pulp brightness.
研究证明所育成的窄冠黑杨、窄冠黑白杨心材的比例小 ,颜色浅 ,有利于提高制浆的白度 ,木材的基本密度随树高而增大 ,木材纤维长度与树高的关系不大 ,但随年龄的增大而增长 ,纤维长度 5年生时基本稳定 ,可达 1mm。
2.
We have selected 6 cultivars of narrow crown black poplar and one narrow crown black-white poplar through cross breeding , choosing young seeding and clones test.
通过杂交育种 ,苗期选择 ,无性系测定 ,选出了 6个窄冠黑杨 ,1个窄冠黑白杨无性系。
2) narrow crown black poplar
窄冠黑杨
1.
In our study, it is proved that the heart wood proportionment of narrow crown black poplars and narrow crown black-white poplar is small, which makes for improving pulp brightness.
研究证明所育成的窄冠黑杨、窄冠黑白杨心材的比例小 ,颜色浅 ,有利于提高制浆的白度 ,木材的基本密度随树高而增大 ,木材纤维长度与树高的关系不大 ,但随年龄的增大而增长 ,纤维长度 5年生时基本稳定 ,可达 1mm。
2.
We have selected 6 cultivars of narrow crown black poplar and one narrow crown black-white poplar through cross breeding , choosing young seeding and clones test.
通过杂交育种 ,苗期选择 ,无性系测定 ,选出了 6个窄冠黑杨 ,1个窄冠黑白杨无性系。
3) populus leucopyramidalis
窄冠白杨
4) narrow-crown Poplar Aigeiros 11
窄冠杨黑11
1.
A primary research on pulping properties of narrow-crown poplar Aigeiros 11;
窄冠杨黑11制浆性能初探
2.
The fiber morphology and pulping properties of narrow-crown Poplar Aigeiros 11 at different ages were studied.
对不同树龄窄冠杨黑11的纤维形态与制浆性能进行了研究。
6) Poplar with narrow crown
窄冠杨
补充资料：黑窄
1.黑而狭小。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条