茎

The poison activity, stomach toxicity action and nonselective food refusal activity of extracts and fractions obtained by extracting the stem of Mirabilis jalapa L against the 4th instar larvae of Pieris rapae L, with 3 polarity solvents（petroleum ether, chloroform and ethanol）were determined by the methods of feeding, leaf-sandwich and leaf dish.

用饲喂法、叶片夹毒法、叶磲法测定了紫茉莉茎的3种极性溶剂提取物及萃取物对菜粉蝶幼虫的毒杀活性、胃毒作用、非选择性拒食活性。

The influence of environmental factors on SR of Jujube tree is remarkable.

环境因子对枣树茎流具有显著的影响。

Fleshy turnip-shaped edible stem of the kohlrabi plant.

大头菜植物的可食用的萝卜形的肉质茎。

Rhizomes orange or yellow; coma bracts white and green, sometimes tinged reddish purple; labellum yellow or yellowish.

根状茎橙或黄色；种缨苞片白色和绿色，有时微染红紫色；唇瓣黄的或淡黄。

Pseudostems 60--130 cm; labellum yellow with purple stripes, broadly to narrowly ovate.

假茎60 --130厘米；唇瓣黄的具紫色的条纹，宽到狭卵形。

The different extracts were mode from the perilla frutescents of labiate plant using different reagent, their antioxidant activity was measured by the Oven－Storage Test in the salad oil and the rapeseed oil, and in comparison with Tea Polyphenols and VE.

董贵玲 ，王维华，张燕平采用不同溶剂，从唇形科植物紫苏茎叶中制得各种提取物，用烘箱法测定它们在色拉油、菜油中的抗氧化性，并与茶多酚、VE比较。

Petiole of basal and lower cauline leaves (1-)2-5(-8) cm, considerably flattened at base; leaf blade oblong-oblanceolate in outline, appearing pinnately compound,(0.5-)5-15(-22) cm, sparsely to densely pubescent; lateral lobes 7-13 on each side of rachis, broadly ovate, oblong, or linear,(0.5-)1-2.5(-4.6)× 0.1-1(-2) cm, base decurrent, margin entire, irregularly serrate, or laciniate, apex acute or obtuse.

叶柄的基部和下部茎生叶(1-)2-5(-8)厘米，相当大扁平在基部；轮廓长圆形倒披针形的叶片，出现羽状复叶，(0.5-)厘米，疏生兑一密被短柔毛5-15(-22)；在轴的每边的侧面裂片7-13，宽卵形，长圆形，或线形，( 0.5-)1-2.5(-4.6)* 0.1-1(-2)厘米，基部下延，边缘全缘，不规则有锯齿，或条裂，先端锐尖的或钝。

A large lacuna occupies the center of many stems.

有些植物茎的中央有大型的空腔存在。2。

Object To explore the method for high quality DNA extract from plant Chinese medicinal materials containing developed xylem Methods The process of DNA includes wash with Tris buffer, extract with CYAB buffer and purification mainly Results Using this method, the total DNA was isolated from Cimicifugae foelida L., Arlia chinensis L., Paeoniae lactiflora Pall.,Aucklandia lappa Decne.,Lindera aggregata Kostern., and Akebia quinata Decne.

目的 为获得高质量的DNA，研究木质部较发达的根，根茎类以及茎木类药材的DNA提取方法。方法总DNA的提取过程包括用Tris缓冲液洗净，CTAB抽提和纯化。

Any of several very tall, late-blooming tulips bearing large squarish flowers on sturdy stems.

几种非常高大、开花晚的郁金香的任何一种，在强壮的茎干上结巨大的近似方形的花。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。