生长素还能使植物形成维管系统,形成侧根,并产生乙烯。
Auxin also causes the plant to develop a vascular system, to form lateral roots, and to produce ethylene.
随着不定根内部的维管系统的发育,不定根从皮孔或下切口伸出。
With the development of the vascular systems in the adventitious roots, the roots extrude from the lenticel or the cutting callus.
根据子叶节区理论和方法对胡萝卜幼苗初生维管系统进行了解剖学研究。
After making an anatomic study on the primary vascular system of their seedlings based on the theory and method of cotyledon node zone.
它在基部与植物维管系统联成一体,在本质上是由植物侧根原基衍生而来。
The tree-shaped structure of nodular vascular framework is connected with the vascular system of plant in the base, It was derived originally from the plant lateral root primordium.
本文还就穗-茎维管系统的形成过程对小穗小花分化、结实的可能影响作了讨论。
The effect of the formation process of the ear-stem vascular system on the differentiation and development of the spikelets, florets and seed set was also discussed.
其初生维管系统的解剖学研究表明:子叶节区明显长于毛茛科植物幼苗,属顶枝伸长型。
The anatomical structure of its primary vascular system was studied and its cotyledon node zone is longer than that of Ranonculaceae.
PAL活力与刺槐胚轴或幼茎的维管系统即导管分子的数量和木质化程度增长趋势相一致。
And the activity of PAL coincided with the increasing tendency of the Numbers of vessel element in the plumular axis or juvenile stem of robinia and its degree of lignification as well.
结果南方红豆杉根的次生结构由周皮和维管系统组成,次生木质部由轴向系统和径向系统两部分构成。
Results The secondary structure of the roots of Taxus chinensis var. mairei consisted of the periderm and vascular cylinder(stele). Axial and radial systems formed the secondary xylem of the roots.
利用偏光显微镜和明场显微镜,首次报道了模式植物金鱼草幼苗初生维管系统木质部导管分子的发育、形成和连接过程。
The process of vessel element ' s promotion, formation and connection in primary xylem of antirrhinum majus, a model plant, was observed through micropolariscope and bright - field microscope.
AM真菌是广泛存在于土壤生态系统中的一类有益微生物,能与90%以上的维管植物形成共生体。
AM fungi is a kind useful microorganism that distributes in the soil system extensively; it can form symbiosis with host plant above 90%.
目的:根管系统的复杂性使得完善严密的三维封闭根管系统成为根管治疗成功的难点。
Objective: It is difficult for three-dimensional sealing of root canal because of the complexity of the root canal system.
介绍了利用高灵敏度四象限硅光电管作为探测器的二维小角度测量系统,详细分析了其测试原理及实验装置。
This paper introduces the dual axis small Angle measuring system, which USES quadrant si-photoelectric cell as the detector, analyzes the measuring principle, experimental equipment.
苔藓植物作为许多生态系统的主要地被物,在维管植物天然更新过程中发挥着不容忽视的作用。
As the main ground cover of many ecosystems, bryophytes play an important role in the process of vascular plants' natural regeneration.
利用三维光线追迹的方法,对小型激光二极管面阵的柱透镜耦合系统进行数值模拟研究。
With the help of numerical analysis of three-dimension ray tracing, the coupling system of cylindrical lens for small-size LD stacks was studied.
管道系统的水力过渡过程通常是采用一维理论进行计算的,因此实际的三维管道通常采用沿中心线延伸变成具有相同过流断面的等效直管来代替。
Hydraulic transients in piping systems are usually calculated by one-dimensional theory, in which real 3-d piping is replaced, by an equivalent straight conduit with the same cross section.
介绍了一种新型激光三维成像方法,该方法用条纹管作为成像系统的接收端,使激光三维成像雷达具有高帧频、大视场角的特点。
A new type of three-dimensional (3D) imaging laser radar is introduced. It uses streak tube as the receiver, which makes the radar have the peculiarities of high frame rate and wide range angle.
介绍了一种新型激光三维成像方法,该方法用条纹管作为成像系统的接收端,使激光三维成像雷达具有高帧频、大视场角的特点。
A new type of three-dimensional (3D) imaging laser radar is introduced. It uses streak tube as the receiver, which makes the radar have the peculiarities of high frame rate and wide range angle.
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