无性系的

On the basis of study on the conditions and pathways of expression of cell totipotency , totipotent cells were inquired to found the clone of marine macroalga.

依据藻体类型和早期形态发生类型，选择假膜体、膜状体和多核单细胞体三种类型的海藻，在单藻培养、不加激素的条件下进行外植体培养，研究海藻细胞全能性表达的条件和途径，并在此基础上，寻找全能性细胞，构建大型海藻无性系。

All transport was basipetal. Although there was some acropetal movement, assimilate was predominantly translocated towards the basilar.

定量分析表明，尽管有一些向顶的运输，但向基运输是占绝对优势的，但随着无性系生长时间的不同，运输将会发生改变。

Direction as theory of modren foresty and biotechnology, Based on the Breeding of superior clones, culture medium prescription of tissue culture and photoautotrophic micropropagation for the main species of industrial raw material forest and flower of Fujian were selected, and the sivilcuture model for the main species of industrial raw material forest were comfirmed, and the assistant Forest Management System for the main species of industrial raw material forest and flower of Fujian were established.

以现代林业理论及生物技术为理论指导，在优良无性系选育的基础上，筛选出相思树种等我省工业原料林主要树种及花卉优良品种组织培养、光自养植物微繁技术的培养基配方及轻质专用容器苗基质；确定了环境友好型的工业原料林主要树种栽培模式，建立了相思树种等我省工业原料林辅助经营管理系统。

Populus Shenzhou chosen and bred in recent years is chimera poplar superior clone, divided into type A, B and C. Type B served as progenitive material after cutting differentiated into type A similar to Populus tomentosa and type C similar to Populus dakuanensis.

深州杨为近年选育出的嵌合体杨树优良无性系，分为A型、B型和C型。B型作为繁殖材料扦插后可以分化为类似于毛白杨的A型植株和类似于大官杨的C型。

At the same time, the information of flax biotechnology of anther culture, haploid breeding, utilization of somatic mutation, protoplasmic culture, gene transformation were introduced in detail.

从亚麻花药培养、单倍体育种、体细胞无性系突变体的利用、原生质体培养、转基因技术的研究等方面详细地介绍了我国亚麻生物技术的发展状况。

The difference, relative variation of modular number and mass and their frequency distribution were analyzed between treatments, and within and among structural levels of genet, ramet and tiller in grazing experiment.

在放牧实验中，分别以矮嵩草源株、分株和分蘖层次为单位，对其构件单元的数量和生物量、变异系数、频率分布在处理间的差异和相对变异性进行分析；在模拟放牧实验中，分别就无性系内刈割和未刈割部分从这3个层次上比较了构件数量和生物量在处理间的差异和相对变异性，所得结果如下

Different opinions about the origination of somaclonal variation, which is a very common phenomenon in plant tissue culture, exist, such as the activation of transposable elements and DNA methylation.

植物体细胞无性系变异是植物组织培养中的普遍现象，关于这些变异的起源存在多种观点，如转座因子的活化、DNA甲基化等。

F2 and F3 populations of the cross of a rice somaclonal variant Hei-zhen-mi with purple pericarp and its donor parent Basmati 370 with white pericarp were used to study the genetic control of purple pericarp.

选用种皮呈紫黑色的水稻体细胞无性系变异体黑珍米和其种皮呈无色的原始亲本Basmati 370配制组合，同时应用121个DNA探针检测了黑珍米与B asmati370之间的RFLP。

By way of synthetical analysis to the traits of selection, we have chosen some clones and half-sib families better comparatively , providing some masson pine of better heredity mould by measuring for real plants.

通过对指标的综合分析选择出一些相对较为优良的马尾松半同胞家系和无性系亲本，为实际生产提供一些经测定为遗传型优良的马尾松品种。

The average values of most traits of clones are greater than that of half-sib families except for the content of chlorophyll and the concentration of CO2 between cells.

无性系测试林的总平均侧枝数、叶绿素a含量、叶绿素b含量、总叶绿素含量和细胞间隙CO2浓度等五个指标，低于半同胞家系测试林的总平均值，其它指标大都大于在半同胞家系间的总平均值。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。