大家在查： exopolysaccharide DPA 易必捷 Costas main bodies 曹禺 frieze Planescape 二亿畴昔

Ulmus pumila

网络榆树；白榆；家榆

Ulmus pumila

Ulmus pumila

Ulmus pumila

榆树

榆树（ULMUS PUMILA）榆树盆景黑龙江哈尔滨：黑色小虫蚕食老.. 哈尔滨老榆树遭黑色小虫蚕食河北：定州榆树小苗供不应 …

白榆

种,它们是白榆(Ulmus Pumila)和榔榆(Ulmus Parvifolia),两者在我国分布都很广,但开花期是不同的,白榆于早春先叶开花,而榔榆 …

家榆

家榆（Ulmus pumila）、春榆（U. davidiana）等榆树。主要形态特征成虫雄蛾翅展68mm左右，雌蛾100mm左右；体翅烟黑 …

垂枝榆

常见树木拉丁文.doc - 豆丁网 ... 欧洲白榆 Ulmus laevis 120 垂枝榆 Ulmus pumila 光叶榉 Zelkova serrata ...

榆树-小盆景

My Orchids and Other... ... 郁金香 Double Early Tulip Abba 榆树-小盆景 Ulmus pumila 扁石斛 Dendrobium lamellatum ...

榆属榆树

园区植物种质... ... 中国13．9柳叶栎14榆科 14.1榆属榆树（家榆） Ulmus pumila 中国14.2朴属珊瑚朴 Celtis iulianae ...

1

Ivela ochropoda is one of the main defoliator pest occurred in Ulmus pumila , and is very serious in Wuqi County .

榆毒蛾是榆树的食叶害虫之一，在吴起县发生严重。

2

There was no poison phenomenon of Ulmus pumila L. in the whole experiments . 2.

在本试验处理浓度之内没有出现白榆受重金属毒害至死的现象。

3

Compared with Ulmus pumila, Platycladus orientalis showed stronger adjustability in the semi-arid area of Loess Plateau.

在黄土半干旱区侧柏具有比白榆更强的适应能力。

6

A Study on the Distant Hybridization between Populus alba Linn. And Ulmus pumila Linn.

银白杨与白榆远缘杂交的研究。

7

Study on the Relation Between the Photosynthetic Physiological Properties of Ulmus pumila and Hippophae rhamnoides and Soil Water Content

白榆沙棘光合生理参数与土壤含水量关系研究

8

Response to Light of Ulmus pumila in Different Soil Moisture

不同土壤水分条件下白榆的光响应研究

9

The Seedling Stage Test of Ulmus Pumila L. Excellent Provenance and Family Combine Selection

白榆优良种源、家系配合选择苗期试验

10

Size Structure and Neighbor Pattern of Ulmus pumila L. Population at Southern Edge of the Otindag Sandy Land

浑善达克沙地南缘榆树种群的大小结构和邻体格局

热词推荐

大家在看