查询词典 NAA

The medium of 1/2MS+ 0.4mg/L NAA +0,2mg/L IBA was used for rooting, and the rooting rate was 75%. The origin and development of somatic embryos was observed by histological method. It was found that the somatic embryos of Aesculus hippocastanum L were developed from single cell.

通过组织细胞学方法研究体细胞胚的起源与发生部位，发现欧洲七叶树体细胞胚为单细胞起源，外植体的表面及内部都可以发生体细胞胚。

NAA can replace apices to keep apical dominance but without to compete nutrient with tobacco leaves.

利用生长素进行烤烟钾素库源关系的生理调控，既保持了烟株的顶端优势，又不让其与烟叶竞争养分。

Key words:Dendrobium candidum; Axenic nodal segments; In vitro propagation; Concentration of hormone; Organic susbstance

方法将铁皮石斛试管苗茎节接种于不同NAA浓度的MS培养基上诱导腋芽萌发，并在含不同激素配比和有机添加物的培养基上继代和诱导生根。

Studies on callus induction, adventitious shoot regeneration of Cirsium japonicum DC. var. takaoense Kitamura using leaf and stem-node as explants were conducted with different strength of MS medium, sucrose concentration and growth regulator combination in this investigation.

中文摘要本研究以白花小蓟无菌苗之叶片与茎节培植体为材料，进行不同MS培养基浓度、蔗糖浓度、NAA配合BA或TDZ浓度组合对愈合组织形成及不定芽诱导之影响。

The results showed :The most suitable medium for buds induction from cotyledon of Citrullus lanatus was MS＋6-BA 3.0mg/L＋NAA 0.1mg/L.

研究结果表明：子叶芽诱导的最佳培养基配方为MS＋6-BA3.0mg/L＋NAA0.1mg/L。

The results indicated the best medium for supension co-culture with Daucus carota and Daucus carota is MS, 2, 4-D 2 mg/L, NAA 1 mg/L and KT 0.2 mg/L, after 25 d the polysaccharide content of co-culture reaches the highest level 0.203 mg/g, and the saponin content of co-culture is 1.85mg/g, higher 3.35% than saponin of Panax ginseng culture.

结果表明，人参与胡萝卜悬浮混合培养的最佳基质为MS、2，4-D2mg/L、NAA1mg/L、KT0.2mg/L，在培养25d时混合培养物的多糖含量达到最高，浓度达到0.203mg/g，混合培养物的皂苷含量为1.85mg/g，比人参悬浮培养物皂苷含量高出3.35%。

The best explant in the culture was brown leaf,and the explant sterilized in 0.1% aqueous mercuric chloride for 5min has the best effect;At the initial stage in induction,3% glucosan have the best effect following with 1% glucosan+2%sucrose are optimum in the process of culturing;the optimum culture medium is 1/2MS; the preferable medium of callus is 1/2MS+ KT(0.1mg/L)+6-BA(0.05mg/L)+2.4-D(0.4mg/l);differentiation1/2MS+6-BA(0.3mg/l)+NAA0.2+KT(0.05mg/l);and the preferable medium of rooting is :1/2MS+NAA(0.05mg/L).

安祖花组织培养的最佳外植体为棕色叶片；最佳消毒时间为0.1%的升汞消毒5min；最佳碳源：诱导初期3%的葡萄糖的诱导效果最佳，后期培养以2%蔗糖+1%葡萄糖的培养效果较好；最佳基本培养基为1/2MS。

The chapter four has successfully synthesized NaA zeolite membranes with highly intergrown crystals on seeded SiO〓 modifying α-Al〓O〓 composite substrate.

在25℃和0.1MPa的压差条件下，经24h合成的膜的完整性最好，H〓／N〓，H〓／CO和〓的理想选择性分别达到7.33，10.11和18.24，显著高于相应的努森扩散值3.74，3.74和4.69，表明大部分气体分子是在分子筛孔道中进行扩散。

Adventitious shoots were successfully regenerated from young leaves and internodal segments of in vitro cultures of two chrysanthemum cultivars when cultured on Murashine and Skoog basal medium supplemented with various plant growth-regulators.

以MS为基本培养基添加不同质量分数的6-BA和NAA，通过一定时间诱导，幼嫩叶片和茎段可以通过不同方式产生不定芽。

The result showed that rooting intube was better and the best medium was WPM, adding NAA 0.01 mg·L-1+IBA0.5 mg·L-1+sucrose 20 g·L-1,on which the rate of rooting was 55%.

结果表明试管内生根优于试管外生根，试管内生根的最佳培养基为WPM，并添加NAA0.02 mg·L-1+IBA0.5 mg·L-1+20 g·L-1蔗糖，；其生根率为55%。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐