populus的例句大全

study on the establishment techniques of gene pool for populus ussuriensis

大青杨基因库的营建技术

study on cuttage of populus ussuriensis and growth characteristics at seedling stage

大青杨扦插繁育及苗期生长特性的研究

study on gene resources in populus ussuriensis

中国大青杨基因资源研究

white poplar abele populus alba var

博勒银白杨

application of intersectional hybrids to leuce-aigeiros intersectional hybridization of populus

中介亲本在黑白杨派间杂交中的应用

advances of researches on molecular phylogeny and intersectional hybridization of populus sections

杨树分派的分子系统学与派间杂交研究进展

morphological and isozyme studies of leuce-aigeiros intersectional hybrids of populus

黑白杨派间杂种苗的形态学和同工酶研究

two newly described polypores on populus in northeast china

中国东北杨树上两种新多孔菌

the smooth white trunk of populus tremuloides, or "quaking aspen, " hides a secret.

这些树干光滑的美洲山杨，或者叫做“颤杨”有着一个秘密。

analysis on change of transpiration rate and leaf water potential of populus diversifolia schrenk under different ground water level

不同地下水位胡杨蒸腾速率与叶水势的变化分析

experimental analysis on grafting populus diversifolia into xinjiang popular in chepaizi reclamation area

车排子垦区胡杨嫁接新疆杨试验分析

collection and store of seedlings of populus diversifolia

胡杨种子的采集与贮藏

growth models of sect. aigeiros in populus at nursery stage and its gray correlation analyses

黑杨派新无性系苗期生长模型及灰色关联分析

study on selection of directive breeding for non - floccus populus variety

无絮杨树品种的定向选育研究

a fingerprinting map of 12 clones has been constructed by 8 polymorphic bands selected from 3 primer combinations, which can identify the true populus tomentosa triploids and serve as the basis for species protection.

利用3个引物组合的8条多态性条带构建了12个供试材料的指纹图谱，可以作为三倍体毛白杨无性系鉴别以及品种保护的依据。

studies on clonal test and spacing effect of new clones of populus tomentosa carr .

毛白杨新无性系对比试验与造林密度效应研究。

twelve populus tomentosa triploids and diploids were identified by aflp molecular technology using a mse ⅰ+ 3/ ecor ⅰ+ 2 primer combination.

利用AFLP标记技术采用MseⅠ+3/EcoRⅠ+2引物组合，对12个三倍体毛白杨和二倍体毛白杨无性系进行了分析鉴定。

the number of inflorescence, quantity of pollen, seed quality and morphological characteristics of reproductive organs of 3 diploids and 7 triploids in populus tomentosa were investigated in this study. inflorescence number of triploid is less than that of diploid obviously.

该文通过对7个毛白杨三倍体和3个二倍体无性系的花序量、花粉量及生命力、种子品质的比较研究和生殖器官形态的观察，发现三倍体无性系的花序量明显比二倍体的少；

rick nye, populus managing director, said he expected any movement in the polls to take place over the next 48 hours, as voters make their final calculations on how to vote.

Populus董事总经理里克•奈（Rick Nye）称，随着选民对如何投票进行最后的盘算，他预计未来48小时任何情况都有可能在民调中发生。

study on inoculation of va mycorrhizal fungi and ectomycorrhizal fungi on populus tomentosa carr. seedling

毛白杨苗期VA菌根菌与外生菌根菌接种的研究