查询词典 root tip

The leaves,pedicel axillary bud,pedicel linternode,stem tip and root tip of butterfly orchid were used as explants,and the best explant and culture medium were screened by testing different culture medium with hormone combination.

以蝴蝶兰的叶片、花梗腋芽、花梗节间、茎尖、根尖为外植体，通过对蝴蝶兰组织培养的不同类型的基本培养基及各种激素配比进行组合试验，筛选出蝴蝶兰组织培养的最适外植体及其培养基配方。

Plane strain, mode I quasi-static steady state crack growth is investigated utilizing the finite element method. It is once again established that TNT plasticity can significantly increase the stress level near the crack tip. The crack tip stress singularity is higher than or equal to the square-root singularity of elastic K field and is also independent of the plastic hardening exponent.

采用有限元方法研究了平面应变Ⅰ型准静态的稳态裂纹扩展，再次证实TNT非局部理论能够显著提高裂纹尖端附近的应力水平；裂尖应力场的奇异性超过或等于弹性K场平方根奇异性，而且与塑性硬化指数无关。

The different circumferential speed of the blade from the root to the tip and the tip clearance may be the main reason to form the vortexes.

引起这种现象的原因主要是从叶根到叶尖具有不同的牵连速度，在叶尖处牵连速度最大，叶片对气体的做功能力最强。

Somatic embryos can be produced both from the surface and the inner of the calli. Embryogenic cell has normal shape, dense cytoplasm , clear nucleolus, hearty metabolize; Plantlet regenerations were developed from global embryo, heart-shaped embryo, torpedo-shaped embryo and cotyledon embryo, in which the V-shaped vessel vascular bundles and shoot tip meristem and root tip meristem were observed.

胚性细胞多为椭圆形，细胞质浓厚，核仁明显，代谢旺盛；体细胞胚经过球形胚、心形胚、鱼雷形胚和子叶胚而发育成再生植株，子叶期体细胞胚可观察到明显的V型维管束、茎尖分生组织以及根尖分生组织。

Root of will double palm is put in rachis both sides, inside palm root face, outside finger tip face, press to extrapolate forcibly at the same time.

将双手掌根放在脊柱两旁，掌根朝内，指尖朝外，同时用力向外推按。

The effect of neodymium on root tip cell was similar to that on mesophyll cell. The influence of neodymium on cell ultrastructure was more evident in root.

钕对油菜主根根尖细胞的作用与对顶叶叶尖细胞作用类似，但对根细胞超微结构影响更为明显。

Using colchicine for the induction of polyploidy plants is one of the ways of artificial induction. Colchicine, root length and light were selected as the influencing factors to induce polyploidy Amorpha optimal with the root tip smeared, to explore the optimal induction conditions for polyploidy Amorpha optimal.

用秋水仙素对植物进行多倍体诱导是人工诱导的方法之一，为了探究诱导紫穗槐多倍体的最优化条件，选取秋水仙碱，根长以及光照情况3个影响因素，对紫穗槐根尖进行涂抹处理诱导多倍体。

So these results maybe imply the presence of complete BR biosynthetic pathway in maize root, especially in root tip .

因此我们推测，BR的生物合成可能主要在玉米的根中，尤其是根尖进行。

Adding both NAA and BA to medium would promote the percentage of callus formation of tip and podding without root, but would inhibit the podding with root.

同时添加NAA及BA对子房柄形成愈伤组织及不发根结荚有加成的促进作用，但对发根结荚则有加成的抑制作用。

New root is born from cauline ministry in spring, normally white, part of tip root cap often is green.

新根 在春天从茎部生出，通常白色，先端根冠部分常为绿色。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。