茎

这种植物的茎上长有绿色细长条纹。

The plant 's stem is marked with thin green longitudinal stripes .

荨麻长有四方茎和细小茸毛。

The stinging nettle has a square stem and little hairs .

就从茎节下面，沿茎干把它们全砍掉。

Cut them off cleanly through the stem just below the node .

木虱会侵害活体植物并啃咬它们的茎。

Woodlice attack living plants and gnaw at the stems

莎草看上去和普通的草没什么两样，但其草茎是实芯的而不是空芯的。

Sedge is similar in appearance to grass but has a solid rather than a hollow stem

别掐断植物茎！

Don 't nip any stalks off the plant .

该昆虫也叫番茄叶虫，以果实为食物，并钻入植株的茎内移动来破坏农作物。

The insect , also known as the tomato leaf miner , devastates crops by feeding on fruits and digging into and moving through stalks .

然而，一旦开始生长，这些植物似乎就不再具有暂停其茎叶新陈代谢的能力。

Yet once they start growing , such plants seem not to retain the ability to hit the pause button on metabolism in their stems or leaves .

生长到最大高度时它们的茎部会长出花朵。

When they reach their full height , flowers grow out from the stem .

红色茎部和两片又长又宽的绿叶是它们的标志性特征。

They are recognized by their red stem , and two long and wide green leaves .

然而,人们认为香蕉树是一种草本植物,而不是一种树,因为它没有强壮的木质茎。

The banana plant , however , is considered a herb rather than a tree because it doesn 't have a strong , woody stem ( 、 ) .

其茎干被一层光滑的棕色树皮包裹，绿色的叶子则长有锯齿状边缘，其外形与蔷薇的叶子相似。

Its stem is covered with a smooth brown bark , and its green leaves have saw-like edges , somewhat like the leaves of a rose-bush .

每年，橡树的茎干都会变得更粗，因为树皮之下长出了新的一层木头。

Every year the stem of the oak-tree becomes a little thicker , for a new layer of wood grows all round it just under the bark .

蒲公英没有长长的茎干，不过在根的顶部却生长出一些向外扩散的绿叶，从而形成莲座丛。

The dandelion has no long stem or trunk , but from the top of the root a number of green leaves spread out and form a rosette .

到处都是勃勃的生机，甚至粘在草茎上的小雪球里，也会躺着一只小绿虫，如果你把它捅开的话。

Everywhere you look is life ; even the little ball of spit on the weed stalk , if you poke it apart , has a green worm inside it .

水蜜桃茎尖基因组DNA不同提取方法研究

Study on the Different Extraction Method of Genomic DNA of Juicy Peach Stem-tip

盐分抑制羊草对N、P、K的吸收，尤其K的吸收受盐分抑制显著，不同盐度处理羊草植株茎叶与根系K含量均显著降低。

The content of N , P and K , especially K was greatly reduced by salt .

长芒稗E.长根茎蓝粒玉米种质利用初报

The First Report about the Application of Long Rhizome Germplasm of Blue Maize

利用花茎培养试管苗生产茎椰菜F1种子

Preliminary study on floral stem culture for use in f_1 hybrid seed production in Broccoli

老龄大鼠海马CA3区神经元的酶细胞化学改变及人参茎叶皂甙的抗衰老作用

Enzyme cytochemical alternations of neurons in hippocampal ca_3 of aged rats and the anti-aging effects of Ginsenoside

人参茎叶皂甙对正常和利血平化小鼠肝、肾组织的DNA，RNA及蛋白质合成的影响

Effects of saponin of GSL on DNA RNA and protein synthesis of liver and kidney in normal and reserpinized mice

在同一药用部位中，叶中苦玄参苷IA含量高于IB，根和茎中苦玄参苷IB含量高于IA。

The content of picfeltarraenin I_A was higher than that of picfeltarraenin I_B in the identical part in leaves , while conversely in stems and roots .

马铃薯四倍体栽培种茎段组织的EMS诱变研究

Research on Applying Stem Segment in Vitro of Tetraploid Potato Variety in EMS Mutation

以大叶黄杨带腋芽茎段为材料，以MS和1/2MS为基本培养基，进行组织培养研究。

Euonymus japonica us stem segment with axillary 's bud was cultured with MS and 1 / 2MS medium in this experiment .

本文报道了延胡素愈伤组织和地下茎形成块茎的适宜条件：改良H培养基附加BA或BA+GA。

This paper reports on the conditions suitable for the formation of tuber by callus and underground stem of Corydalis yanhusuo .

Cd，Pb在小白菜茎叶的含量与土壤有效Cd，Pb也显著相关。

The contents of Cd , Pb , Zn in Brassica chinensis also significantly correlated with their available contents in soil .

兰花圆球茎基因枪转化后的GUS基因表达

The Expression of GUS Gene in Orchid Protocorms After Bombardment

以叶用莴苣微茎尖为试材，在含有BA和NAA的MS液体培养基上旋转培养，诱导出大量愈伤组织；

Primordium-like tissue was established from the apical meristem under rotation culture on MS medium with BA and NAA .

孕茭前~（14）C同化物在短缩茎分配率较大，而叶片、叶鞘较小，说明短缩茎是养分贮藏的中间库；

The allocate rate of 14C assimilation is highest in culm before pregnant , lower in leaf-blade and leaf-sheath , which showed that culm was the middle sink in nutrient store progress .

腐植酸能有效抑制Hg在植物体内的富集，使植物茎、叶中Pb的分配系数明显降低；

Humus could restrain Hg accumulation in plants effectively and reduce the coefficient of distribution of Pb in stem and leaf obviously .