根的生长

Effect of different NaCl concentrations and pH values on garlic growth and cell division were studied in this paper.

本文研究了不同NaCl浓度和pH对大蒜根、芽生长及根尖细胞有丝分裂的影响。

Spathiphyllum 'Sensation' root growth was stimulated at very low Fe concentrations, while that of Dracaena sanderiana 'Celica' was inhibited.

含低浓Fe-EDTA之水耕液，增加白鹤芋'巨人'的根乾重；但抑制黄万竹之根生长。

If be inadequacy of the microelement inside body, can a few good hairs give birth to edible long food, be like first class of the tuber of multiflower knotweed, potato, taro, can stimulate hair root, complement sends a nutrition.

如果是体内微量元素不足，可以食用一些有益头发生长的食物，如何首乌、马铃薯、芋头等，都可以刺激发根，补充发根营养。

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。

Effect of VAM fungus on the growth of core and micro-ecolcIgical environment of core rhizosphere.

VA菌根真菌对玉米生长及根际土壤微生态环境的影响。

The mode of germination of S. sinuosa was by extension of hyphae around the sporocarp.

菌丝在培养基质中生长良好，能够侵染根段形成大量的丛枝和根内泡囊。

The exterior of root system of Melilotodes in adult period mostly covers a flat thick"velamen"in the course of growth and development. The polysaccharide in the interior of root system lies in secondary phloem and secondary xylem and xylem ray ,which distributes uniformity.

在生长发育过程中，生长5年的扁蓿豆成株大部分根系外面覆盖了一层厚厚的"根被"，其根系内部多糖存在于次生韧皮部和次生木质部及木质射线中，颗粒在细胞中分布较均匀。

When the Agropyron seeds were treated with 1.0kv.cm-1,the seedling rate,seedling length and root length increase by 4.5%,81% and 48% respectively,and treated with 4.5kv.cm-1,the seedling rate,seedling length and root length increase by 4.8%,84% and 66% respectively.

结果表明：不同电场对冰草种子萌发及幼苗生长产生不同的影响，用1.0 kv/cm电场强度处理冰草种子10 min，可提高种子出苗率4.5%，苗长增长81%，根长增长48%；用4.5 kv/cm电场强度处理冰草种子10 min，可提高种子出苗率4.8%，苗长增长84%，根长增长66%。

Aqueous extract of cotton has allelopathic effect on Raphanus sativus, Brassica campestris, Lactuca indica, Brassica campestris, Echinochloa crusgall, Setaria viridis and Abutilon theophrasti and its inhibition effect gradually strengthens with increasing concentration. Aqueous extracts from stems, leaves and roots of cotton inhibit or accelerate seed germination and seedling growth, and activity of enzyme of seedling root of cotton. While aqueous extracts from stems and leaves of cotton are 0.02 gmL^(-1), root length, shoot length, lateral root number and dry weight of cotton respectively increase by 10.3%, 3.1%, 22.9% and 2.4% over the control. The above mentioned indexes are lower than the control by 34.4%, 39.2%, 40.6% and 19.0% respectively as the aqueous extracts are 0.1 gmL^(-1). At the same time, root activity and SOD activity decrease by 38.2% and 36.7%, while POD activity and MDA content increase by 52.3% and 36.5%. Growth indexes of plant receptors increase at low concentrations but decrease at high concentrations of aqueous extracts. The allelopathic effect of aqueous extract of stems and leaves is stronger than that of root.

结果表明：棉花植株水浸提液对萝卜、白菜、莴苣、油菜、稗草、狗尾草、苘麻均具有化感效应，随着作用浓度增加，抑制效应逐渐加强；棉花茎叶和根系水浸提液对棉花种子萌发、幼苗生长、幼苗根系活力、根系酶活性有抑制或促进作用，当茎叶浸提液浓度为0.02 gmL^(-1)时，棉花根长、苗高、侧根数、干重分别比对照增加10.3%、3.1%、22.9%和2.4%，当浓度为0.1 gmL^(-1)时，上述指标与对照相比分别降低34.4%、39.2%、40.6%和19.0%，而根系活力、SOD活性比对照降低38.2%、36.7%，POD活性、MDA含量较对照增加52.3%和36.5%，不同浓度棉花植株水浸提液对棉花生长呈现&低促高抑&的规律，且茎叶浸提液作用效应大于根系浸提液。

There was significant genotypic variation in total root length and lateral root length in response to low temperature stress.

不同品种玉米总根长和侧根长对温度的反应程度存在明显差异，低温对农大364侧根生长明显促进作用，而对先玉335侧根生长有明显抑制作用。

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。