胚根

In the early phase of differentiation a series of structural changes occurred at some local areas of the coleorhiza.

胚胎分化时胚根鞘的形态结构特征的变化与营养吸收相联系进行了实验观察。

The results showed that the wheat growth was increased with lower concentration of Cu; but with higher concentration of Cu, the activities of diastase and the mitotic index of root tip cell of wheat were reduced, the content of pro was increased.

朱云集等研究了Cu对小麦根系生长发育及生理特性的影响，指出随Cu浓度的提高，小麦胚根、次生根条数减少，根系SOD与POD活性呈下降趋势[7]。

The seeds treated by fluridone began to germinate after 10 days, and then the apex of the seedling radicle swelled and haustorium developed.

结果表明：氟啶酮处理10天后种子开始萌发，然后，胚根顶端膨大，发育出吸器。

The results were as the follows: maize inbreeds were sensitive to salt stress;different salinity stress had inhibition effects on the germination rate,shoot length,relative water content and net photosynthetic rate;different inbreed had obvious difference in salinity tolerance;the best one was XS98-28;the next was XSK5;the middle were in turn XSF,XS01-61;the lower were other inbreeds.

结果表明：玉米对盐胁迫非常敏感，不同盐浓度均对玉米芽苗期的发芽率、胚根长度、叶片相对含水量及净光合速率产生抑制作用；不同材料间耐盐性存在明显差异，各指标均能反映出不同材料的耐盐性；通过鉴定筛选，14个材料中，耐盐性极强的为XS98-28，耐盐性较强的为XSK5，耐盐性中等的为XSF，XS01-61，其余材料耐盐性均较弱。

It was suggested that NO may obviously alleviate the accumulation of active oxygen species in the maize radicel under tress of MV.

证实了NO对百草枯胁迫下玉米胚根的氧化胁迫具有明显的缓解作用。

MethodsThe radicel and tip of bulb of garlic used as explant are cultivated on culture medium with different auxin.

方法］以韭菜种子胚根和鳞茎尖为外植体，在附加不同激素的培养基上诱导愈伤组织并继代培养。

4 kinds of crop seeds of Shawo radish, pumpkin, maize and dry radish were treated by cadmium solution with different concentrations (10, 20, 40, 60 and 80 mg/kg) to determine their germination percentage, seedling height and length of main radicel.

方法］用不同浓度(10、20、40、60和80mg/kg)的镉溶液处理沙窝青萝卜、西葫、玉米、旱萝卜4种作物种子，测定了各自的发芽率、幼苗高度及主胚根长度。

The experimental results showed that the crude toxin of Phytophthora capsici could inhibit the germination of seeds, the growth of seedlings, and the growth of pepper radicel and the callus of pepper extremely.

结果表明，粗毒素能使辣椒叶片产生与疫病病原菌侵染类似的水渍状褐腐斑，抑制辣椒种子的发芽率，抑制辣椒幼苗和胚根的生长，抑制辣椒愈伤组织生长，并且粗毒素的这些抑制作用随着其浓度的升高而变强，不同品种所得出的实验结果一致。

Result The germination percentages of maize and dry radish, and the seedling heights of Shawo radish, maize and dry radish were reduced with the increase of the cadmium concentration. The cadmium had a remarkable restraining effect on the length of main radicel of 4 kinds of crops.

结果］玉米与旱萝卜的发芽率，沙窝青萝卜、玉米和旱萝卜的幼苗高度均随镉浓度的增加而降低；镉对4种作物的胚根伸长抑制效应十分明显。

Using the crude toxin, the research investigated the effect of Phytophthora capsici on the leaf of pepper, the germination of pepper seeds, the growth of seedlings, the growth of pepper radicel, and the callus of pepper.

用胡萝卜汁培养液培养辣椒疫病病原菌，其培养滤液为辣椒疫病病原菌粗毒素，测定了粗毒素对辣椒叶片、辣椒种子发芽率、辣椒种子胚根生长、辣椒幼苗生长和辣椒愈伤组织的影响。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。