根的生长

It is nowhere muddy,and a casual observer would say that there were no weeds at all in it; and of noticeable plants, except in the little meadows recently overflowed, which do not properly belong to it, a closer scrutiny does not detect a flag nor a bulrush, nor even a lily, yellow or white, but only a few small heart-leaves and potamogetons, and perhaps a water-target or two; all which however a bather might not perceive; and these plants are clean and bright like the element they grow in.

它没有一处是泥泞的，偶尔观察的过客或许还会说，它里面连水草也没有一根；至于可以见到的水草，除了最近给上涨了的水淹没的、并不属于这个湖的草地以外，便是细心地查看也确实是看不到菖蒲和芦苇的，甚至没有水莲花，无论是黄色的或是白色的，最多只有一些心形叶子和河蓼草，也许还有一两张眼子菜；然而，游泳者也看不到它们；便是这些水草，也像它们生长在里面的水一样的明亮而无垢。

The results showed that: 1 under the hydroponic culture established in this research, the experimental wheat plants grew well andperformed the typical architecture responses when exposed in Pi deprivation. Hemi-qantitative RT-PCR revealed that the transcriptional level of known P response gene changed dramatically; 2 In general the length of wheat root axis and the root/ shoot ratio arose when the Pi supply was deprived, however, the change models differed among different wheat genotypes. The investigation on their molecular basis would offer the useful clue for seeking high phosphorus efficiency protoplasma and gene resources of wheat.

结果表明：1在研究建立的小麦水培体系中，小麦植株生长正常并对磷饥饿胁迫条件做出发育形态建成水平的反应；半定量RT-PCR分析显示在此体系中小麦磷响应基因也在转录水平上产生显著变化；2在水培条件下不同基因型小麦对磷饥饿胁迫的反应总体上表现在根轴长度和根冠比有所提高，但不同基因型小麦的反应特点有差异；对这些反应特征的分子机理的深入分析可为有效筛选磷高效小麦新种质以及发掘磷高效基因资源提供线索。

A field survey and sampling for chemical analysis was carried out to investigate copper contents in Artemisia argyi and Rumex japonicus Houtt at Zhongtiaoshan nonferrous metal company,Shanxi province.

通过对两种生长在山西中条山有色金属公司附近铜矿渣上的植物艾蒿、羊蹄进行调查和铜含量的测定，结果表明，两种植物有比较高的生物量，均为铜尾矿渣上的优势植物，其根周围土壤的铜含量高。

In the roof garden, Zephyranthes candida Herb and S.

在屋顶花园条件下，以葱兰和佛甲草为实验材料，对它们的栽培基质中添加海泡石，通过与未加海泡石的实验作对照，发现，将适量海泡石加入屋顶花园的栽培基中，可明显改良植物的根际环境，提高土壤肥力，提高基质保水供水的能力，使植物生长旺盛，提高抗病能力。

Bidentis were studied by adopting indoor bioassay. The results showed that the volatile matter of F. bidentis had not allelopathy to four receptor plants. The eluviated matter inhibited seedling growth of cotton obviously, the inhibition ratio of root and stem were 6.29% and 10.42% respectively. The aqueous extract of litterfall and root exudates had different inhibition to four receptor plants, The synthesis effectof all treatments was significantly greater than eluviated matter treatment except for B3 of the aqueous extract of root exudates, such as the synthesis effect of all treatments (A1, A2, A3, B1, B2, B3 and eluviation) were 44.74, 29.37, 14.5, 31.54, 16.52, 3.55, 1.48 respectively.

结果显示：黄顶菊自然挥发物对受体植物不表现化感作用；黄顶菊淋溶物对棉花幼苗生长表现出明显的抑制作用，对棉花幼苗高度和根长的抑制率分别为6.29%和10.42%；黄顶菊枯落物浸提液和根系分泌物浸提液对4种受体植物均表现出不同程度的抑制作用，除了黄顶菊根系分泌物浸提液 B3处理外，其它处理的综合效应均显著大于淋溶物处理，如黄顶菊枯落物浸提液（ A1、 A2、 A3）、根系分泌物浸提液（ B1、 B2、 B3）以及淋溶物等各处理对受体植物的综合效应分别为44.74、29.37、14.5、31.54、16.52、3.55、1.48。

The results showed that the rooting rate reached 83.2%~96.3% in 1/2 MS medium with IBA1.0~1.5 mg/L, The rooting rate of stem with top was significantly higher than that of stem without top; Snicking in stem base increased root number obviously, The appropriate substratum for transplanting was perlite and soil (1:1), The growth tendency of transplanting plantlets in May was slow-fast-slow.

结果表明：采用1/2MS培养基添加IBA1.0~1.5 mg/L，生根效果最好，平均生根率达83.2%~96.3%；带茎尖茎段的生根率显著高于不带茎尖茎段；茎段基部刻伤处理后较对照生根量明显增加；酸枣带根组培苗适宜的移栽基质为1：1的珍珠岩和土；5月份移栽下地的组培苗，其生长呈现慢-快-慢的趋势。

And Changbai larch(Larix olgensis A.Henry)atdoubled CO2 concentration at seedling stage in growth-chamber and WI,HI of several dorminanttree species in MBKPF(1)Under 700μl·1-1 concentration of CO2,the stem height, stem diameter,main root length,root/shoot ratio and the relative proportions of biomass in root,stem and leaf of the seedlings ofKorean pine and Changbai larch had no significant change.

在700μL·L-1CO2条件下与正常浓度下相比较，在一个生长季后，红松、落叶松幼苗的苗高、地径、主根长、根茎比及生物量在根、茎、叶各器官中比例，差异不显著，对落叶松的侧枝数有影响；在第一、二次试验中，落叶松幼苗的平均每株生物量比在正常CO2浓度下大12.2％、14.2％，而红松幼苗的生物量分别减少3.9％、12.8％；红松、落叶松针叶叶绿素含量以及叶绿素a的相对含量在高浓度CO2下受到影响。

With the increased phosphorus supply, the net photosynthetic rate at saturated light, leaf area ratio, and the concentration of nitrogen and phosphorus increased in both species, and the biomass allocation of A. crenata to propagule also increased. So it was indicated that the increased phosphorus supply could facilitate the growth and reproduction of these two species.

结果表明：随磷营养水平的增加，两种植物在饱和光下的净光合速率和叶面积比升高，各器官的氮浓度和磷浓度均有所增加，其中朱砂根对繁殖器官的投入也增加，表明磷营养水平的增加能够促进其生长和繁殖。

Therefore, several experiments were carried out to study their effect on the growth of tobacco seedlings and the activities of enzymes in soils. The main objects were to realize the mechanisms and reasons of continues cropping obstacles, to provide scientific information for solving the problems produced by continuous cropping, and to improved the yields and qualities of fire-cured tobacco in tobacco-growing areas of Southwest China.

本项研究以烤烟根系分泌物和根残体为材料，探索它们对幼苗生长和土壤酶活性的影响，旨在研究烤烟连作障碍发生的机理和可能的原因，为进一步解决我国西南主要烟区的连作障碍问题，提高烟叶的质量和产量提供科学依据。

We have seen that there is an impassable barrier between the organic and the inorganic, and that the only way that matter can unfold is to be impregnated with life; as a seed reaches down into the mineral world and begins to unfold and reach out, the dead matter begins to live, a thousand invisible fingers begin to weave a suitable environment for the new arrival, and as the law of growth begins to take effect, we see the process continue until the Lily finally appears, and even "Solomon in all his glory was not arrayed like one of these".

我们知道在无机物和有机物之间有一个无法跨越的鸿沟，只有当生命渗入，物质的宝库才能开启。当种子把根深入到矿物质世界中，不断张开、延展，那些死寂的物质才开始有了生机，数千个看不见的手指开始为这个新来的客人纺织合适的环境。生长规律在这时发生了作用，我们看到这个过程持续著，直至这&百合花&长成，甚至在&所罗门极荣华的时候，那他所穿戴的，还不如这花一朵呢。&（译注：语出《新约。马太福音》第6章和《路迦福音》第12章

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。