生根

Primary roots and shoots are orthotropic to light and gravity.

初生根或枝对于光和重力都是直生性的。

By reseaching the tissue culture of Oxalis trisngularis, regeneration system of Oxalis trisngularis was preliminaryly established and the optimum mediums were MS+2,4-D 1.5mg/L+6-BA 0.1 mg/L for inducing callus and MS+NAA 0.9 mg/L +6-BA 0.4 mg/L for inducing differentiation, and MS+2,4-D 0.5mg/L for inducing rooting.

筛选出诱导愈伤的最佳培养基为MS+2，4-D 1.5mg/L+6-BA 0.1 mg/L；分化的最佳培养基为MS+NAA 0.9 mg/L +6-BA 0.4 mg/L；生根培养基为MS+2，4-D 0.5 mg/L；愈伤组织Kan抗性筛选的最佳浓度为58 mg/L。

The study of Paper mulberry is about its primary culture, secondary culture and rooting culture.

对枸树的初代培养、继代培养和生根培养进行了研究。

It was found that Pelargonium citrosum Vanleenii proliferation period can be prolonged in proper concentration of Ca~(2+).

结果表明：适当提高Ca2+的浓度，可以延长驱蚊香草试管苗的正常增殖生长周期；不同浓度的Ca2+处理对驱蚊香草试管苗增殖的影响要大于对其生根的影响；驱蚊香草试管苗体内Ca2+含量与试验培养基中Ca2+浓度成线性正相关。

The research made a serial of studies on buds inducement and reproduction, root differentiation and cultivation of young plant in different hormone and different culture media, which selected tender leaves of Pelargonium citrosum as explants in germfree condition.

以驱蚊香草的幼嫩叶片作外植体，在含不同激素的不同培养基上进行丛生芽的诱导、芽的继代增殖、芽生根与移栽研究，以快速获得再生植株。

Leaf and stalk segments of Pelargonium graveolens as explants were cultured to induce callus and then through the process of inducing bud and root clonal propagation of Pelargonium graveolens was successfully developed in vitro.

以香叶天竺葵的叶片和叶柄切段为外植体诱导愈伤组织，经过芽诱导、生根诱导等过程成功获得了香叶天竺葵的再生植株。

Put forward the viewpoint of denoting the rigidity of media by peptonization intensity(g/cm2).Ascertained that the peptonization intensity of initial media is 160-170 g/cm2,that of subculture and rooting media is 150~160 g/cm2.4 Experiment on sugar source of media.

培养基琼脂用量计算的依据通过试验，提出用胨力强度(g/cm~2)表示培养基硬度的观点，并确定了初代培养基胨力强度为160～170g/cm~2，继代培养基、生根培养基均为150～160g/cm~2。

The breed of gilt-edged wind pear basically is to use cuttage method; It has stronger cent to give birth to ability, after be being spent every year, chairman of phyllome radical department gives new shoot, in those days autumn can cut next enter growing in pearlite and vermiculite compound matrix, wait for rooted hind go up again basin conserve.

金边风梨的繁殖主要是采用扦插法；它有较强的分生能力，每年花后，叶丛基部会长出新芽，当年秋季就可切下栽入珍珠岩和蛭石混合的基质中，待生根后再上盆养护。

" "Sure, buddy, says the plebe, rooting around his pocket.

"当然，朋友，说：" plebe ，生根在他的口袋里。

As a result, positive thoughts can take root, bloom, and create the beauty that we need in order to enjoy our lives to the fullest.

这样，积极的思想能够生根，发芽并创造出我们所需的美丽，从而我们能充分的享受生活。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。