Over the years a ragged secondgrowth of aspen and birch and speckled alder, at the far edge of the baseball diamond, has blotted out that view . 棒球场外围伐过的树林，多年以来又长出了参差不齐的白杨、白桦和满身斑点的桤木，挡住了视野。
2.
Studies on growth rule in seedling stage of alnus rubra 美国红桤木苗期生长规律研究
3.
Effect of different treatment of alnus cremastogyne clones 桤木无性系植株不同处理对嫩枝芽数的影响
4.
Study on the photosynthesis characterstics of four improved alnus cremastogyne burk families 四种优良四川桤木家系光合生理特性研究
5.
An effective way to improve soil fertility in traditional agroforestry : planting alnus nepalensis 传统农业生态系统中桤木改良土壤效应研究综述
6.
And there stand all around the alders , and birches , and oaks , and maples full of glee and sap , holding in their buds until the waters subside 那里长满了桤木、桦树、橡树和枫树，生意盎然，一旦大水退去，它们就会爆出新芽。
7.
Genetic diversity which was determined by the analysis of 16s rdna - rflp and 16s rdna - sequencing were carried out on frankia strains isolated from the root nodules of different actinorhizal plants , including myrica , casuarina , alnus and coriaria . the main results of the research project were as follows 本研究课题对来自杨梅( myrica ) 、木麻黄( casuarina ) 、桤木( alnus )和马桑( coriaria )的13株frankia菌纯培养的16srrna基因进行了pcr - rflp分析和部分菌株的序列测定，初步探讨了弗兰克氏菌的遗传多样性和系统发育地位。
8.
A row of sunken dwarf willows borders the stream on one or both sides , while at a greater distance the meadow is skirted with maples , alders , and other fluviatile trees , overrun with the grape - vine , which bears fruit in its season , purple , red , white , and other grapes 沿着溪流的一边或者两侧有一排沉入水中的矮柳，而稍远处，草甸则被枫树、桤木以及其他一些长在河里的树围绕着，葡萄藤则四处蔓延，一到结果实的季节，这里就会长出紫的，红的，白的以及其他各种葡萄来。
9.
In addition , the evident crossing - infection happened in the strains came from myrica , casuarina also could be found in the sequencial analysis . all these results we obtained from the sequencing and rflp analysis were partly accorded with what baker brought forward in 1987 ( the four host specific group , hsg ) . however , they also indicated the limit of this hsg 5株供试菌株与其它已发表菌株的全序列比较结果可将所有菌株大致划分为4个簇，杨梅菌株fmr61 、木麻黄菌株fcg07和木麻黄菌株fce42具有较高相似性与桤木菌株聚为第簇；而杨梅菌株fmr16和2215与来自胡颓子科和沙棘的菌株聚在一起归为第簇。
