查询词典 tree fern

This paper has studied the physiological and biochemical changes during the period of forming strong buds of tree peony, and expect to provide academic basis for extending its view value and economic benefit . The main results are as the following:1 Under the field condition, Characteristics of photosynthesis of tree peony are very regular. From before blooming to the prophase of abducting buds that after blooming ,that is April,May and June,the net photosynthetic rate of tree peony is higher than the other period .It indicates that this period is very important for accumulating photosynthetic products of tree peony . So, if we want to get quality flower of tree peony ,it is very important to strengthen the management of tree peony cultivation and to ensure provide the fertilizer and water.2 From the middle ten days of June, with the time elapsing and with the environment conditions worsening, the characteristics of photosynthesis of tree peony decline deeply. But it is different among different tree peony breeds. For example , cv. Wu Long Peng Sheng can also has higher net photosynthetic rate, it indicates that cv. Wu Long Peng Sheng is super than the other two tree peony breeds when adapting the environment conditions and cv. Wu Long Peng Sheng has wide prospect to extend .3 The main factors of effecting the characteristics of photosynthesis are stomatal factor and non-stomatal factor ,that is the ability of photosynthesis of leaf cells. Under the environment of high light intensity in midsummer, if overshadow tree peony properly, then it can slow the declining of chlorophyll content, and increase the net photosynthetic rate and benefit for the accumulating of photosynthetic products.4 The content of soluble sugar in the root of tree peony is the highest among different organs during the period of forming strong buds . According to analyse ,we believe that the soluble sugar will compose starch then, and provide the solid base of material for the growth and development next year. It provide us strong academic basis of adopting the method of cultivating root and protecting root under thefield environment conditions .In other words ,it will help to increase the health level of the whole plant of tree peony and will be beneficial to forming quality tree peony flower if we strengthen the management of root. 5 To tree peony, the endogenesis hormone is important for its growth and development .In the prophase ,that is about the blooming of tree peony and the mid-summer ,IAA and ZR contents are higher and GA content is lower and its changes are very little, and the content of ABA is decreasing . This indicates that IAA and ZR act the important promote function for growth and development of tree peony in this period, and the function of GA is not important. Bur in the period of anniversary senescence of tree peony , the content of IAA and ZR begin to decrease ,while the ABA content has a certain rebound .T

本研究对几个牡丹品种壮芽形成过程中的某些生理生化变化做了研究，以期了解牡丹生长发育过程中生理生化的变化规律，探讨大田栽培条件下提高牡丹花质量的栽培措施和管理技术，为提高牡丹的观赏价值和经济效益提供理论依据，结果如下：1 大田栽培条件下，牡丹光合特性在生长发育过程中表现出极强的规律性，牡丹各品种的光合速率从牡丹开花前，到牡丹花谢后的花芽诱导期前期（6月10日之前），也就是在4、5、6月份，各牡丹品种的净光合速率相对与其他时间都维持在比较高的水平，这说明，在这段时间，是牡丹光合产物积累的重要时期，因此，要保证得到高质量的牡丹花，在这段时间加强对牡丹的栽培管理，保证这个时期的肥水供应十分重要。2 从6月中旬后，随时间的推移，环境条件的恶化，牡丹的光合性能剧烈下降，但是不同牡丹品种间仍有差异，比如，乌龙捧盛仍可维持较高的光合水平，这说明了乌龙捧盛这个牡丹品种对于环境的适应性较之其他牡丹品种高，有着广泛的推广前景。3 影响牡丹光合性能的主要因子是气孔因素和非气孔因素即叶肉细胞的光合能力，在盛夏高温高光强的环境条件下，对牡丹进行适当遮荫，能缓解牡丹叶绿素水平的下降，适当提高Pn，有利于光合产物的积累。4 可溶性糖在牡丹各品种的壮芽形成过程中，根中可溶性糖的含量在牡丹各部位中始终维持最高水平，分析认为这些可溶性糖在根系中进一步合成淀粉等储藏性物质，为来年牡丹的生长提供雄厚的物质基础，这为我们在大田栽培条件下对牡丹采取养根护根的栽培措施提供了有力的理论依据，即在大田栽培条件下，加强对牡丹根系的管理，有助于提高牡丹整株的健壮程度，有益于形成高质量的牡丹花。5内源激素对牡丹的生长发育调节作用是十分明显的，在前期，即开花前后和盛夏，IAA和ZR含量维持在比较高的水平，GA含量低且变化不明显，ABA含量逐渐降低，说明了IAA和ZR对牡丹在这段时间内的生长发育起到重要的促进作用，GA的作用不是很明显，ABA可能在高温高光强下有明显的升高，也说明了ABA的确有一些促进作用，但是到了牡丹周年衰老期，IAA和ZR的含量开始下降，ABA含量却有了一定程度的反弹，说明了IAA和ZR的作用开始降低，ABA起到了促进衰老的作用

Bracken fern-green and purple fern are usually called the Green fern fern sheep, cattle known as the Purple fern fern.

蕨菜分绿蕨和紫蕨两种，通常把绿蕨叫做羊蕨，把紫蕨称为牛蕨。

This study will be mainly through potted lotus leaf fern Adiantum seedlings and wire division to transplant fern, and then through the different light intensity and moisture content of the orthogonal to quantitative research lotus leaf fern Adiantum optimum growing conditions, and through Transplant Research Laboratory test pilot of the two species, competition between species to find lotus leaf fern Adiantum way to protect endangered mechanism and provide a theoretical basis.

本研究主要通过盆栽将荷叶铁线蕨的幼苗与铁线蕨进行分株移植，再通过在不同光照强度和水分含量的正交实验来定量研究荷叶铁线蕨最适生长条件，并且通过实验室移栽试试验探究两物种之的种内，种间竞争关系为寻找荷叶铁线蕨濒危机理和保护途径提供理论依据。

Regardless of the kind of competition, lotus leaf fern Adiantum in 5400 lux light intensity, 60 percent of soil moisture conditions, the total biomass of the largest, which also shows a lotus leaf fern Adiantum more to live in this habitat, but In such a habitat, the species of lotus leaf fern Adiantum competition among the lowest relative intensity, but these habitats and less dispersed.

无论有无种内竞争，荷叶铁线蕨在5400lux光照强度，60%土壤含水量的环境条件下，总生物量最大，这也说明了荷叶铁线蕨更适应生活在这个生境中，但是在这种生境，荷叶铁线蕨的种间竞争相对作用强度最低，而且这些生境少并分散。

Through research, give the following conclusion: there is no competition, lotus leaf fern and wire fern Adiantum as drought intensifies, the total biomass of a decreasing trend when the water content at the same time, with the intensity of Increase in total biomass showed an increasing trend, LAR general with the increase in soil moisture and lower, with light to reduce the increase, when in a kind of competition within and between species, the lotus leaf fern Adiantum the total biomass is still followed Such laws, but because the resources snatch the total biomass decreased significantly.

通过研究，得到以下结论：在不存在竞争的情况下，荷叶铁线蕨与铁线蕨随着干旱的加剧，总生物量呈降低的趋势；当处于同一水分含量时，随着光强的增加，总生物量呈增加的趋势，LAR一般随土壤含水量的增加而降低，随光强的增加而降低，当处于种内和种间竞争时候，荷叶铁线蕨的总生物量仍遵循这种规律，但是因为资源的抢夺造成总生物量明显降低。

Ferns are found in the valleys in a great variety, the most striking being the Gleichenia Dichotyma,, a hardy fern which covers the hills up to a altitude of 1,600 feet. the following kinds grow only in damp shady spots: Aspidium or shield fern; and Selaginella or Moss fern.

还有，蕨类植物在山谷里随处可见，最有名的是里白木（一种耐寒的蕨类植物，生长在海拔1600英尺的山上），但是绵马根和卷柏这两种蕨类植物只生长在阴暗潮湿的地方。

Our main products : Super Christmas trees, PVC Christmas tree, Christmas anadem, Christmas decorating cane, Pine needle tree, Christmas garland, Pine needle bar, and Super luxury Christmas tree, Appending Christmas tree, Decoration tree, Christmas tree with lights, Pine needle Christmas tree, and Plant tree with soft nap.

万绿工艺制品厂生产产品有：大型超级圣诞树， PVC 圣诞树，圣诞花环，圣诞装饰藤条，松针树，圣诞花圈，松圈，松针条，超豪华圣诞树，悬挂圣诞树，饰品树，圣诞带灯树，松针圣诞树，植绒树。

It proves that tree top leaves suffer from water stress and hydraulic limitation becomes greater with tree height.Water stress influence tree height growth in several aspects:firstly is the influence of exterior water condition,and community average tree height is positive with exterior water condition.Secondly, hydraulic limitation influences individual tree structure and function.Xeromorphic structure,Lower water potential and turgor pressure limit cell division and expansion,which restrict gas exchange and carbon assimilation capability.However,respiration consumption increases with the spread of tree crown.Shortage of nutrient limits carbon investigation on new leave growth and may ultimately limit tree growth.Thus,the main limitation of tree height is water.

水分对树高生长的限制首先是外在的水分状况，群落的总体高度随外界水分状况的变差而变矮；再就是水力限制对单株树木的结构和功能的影响，水势降低、膨压减小使细胞的分裂和扩展受限，旱生型结构加剧水力对气体交换能力的限制、使光合碳同化能力受到限制、而呼吸消耗却随着树木个体的增大而增大，制造营养物质不足、使得营养亏缺、造成投入新枝叶的营养受限，最终限制了树高继续增长。

TIE A YELLOW RIBBON ROUND THE OLE OAK TREE I'm coming home I've done my time Now I've got to know what is and isn't mine If you received my letter telling you I'd soon be free Then you'll know just what to do if you still want me If you still want me Oh tie a yellow ribbon round the ole oak tree It's been three long years do you still want me If I don't see a ribbon round the ole oak tree I'll stay on the bus forget about us put the blame on me If I don't see a yellow ribbon round the ole oak tree Bus driver please look for me 'Cause I couldn't bear to see what I might see I'm really still in prison and my love she holds the key A simple yellow ribbon's what I need to set me free I wrote and tell her please Oh tie a yellow ribbon round the ole oak tree It's been three long years do you still want me If I don't see a ribbon round the ole oak tree I'll stay on the bus forget about us put the blame on me If I don't see a yellow ribbon round the ole oak tree Now the whole damn bus is cheering And I can't believe I see A hundred yellow ribbons round the ole oak tree I'm coming home

原来他刚从监狱出来，释放前曾写信给妻子：如果她已另有归宿，他也不责怪她；如果她还爱着他，愿意他回去，就在镇口的老橡树上系一根黄丝带；如果没有黄丝带，他就会随车而去，永远不会去打扰她……汽车快到目的地了，远远望去，镇口的老橡树上挂了几十上百条黄丝带，车上的乘客都欢呼起来。

But the man became a pigeon son to not only fly, process finally flew back for fly of two dayses, fly to village of time he saw him a beloved woman, just ratio past distressed a lot of, he diligently want to fly to chemisette nearby, but more near more see not pure chemisette face, be he fly to chemisette front of, woman disappear, at he at present but is a tree, on the leaf that is from this tree branch fall in the every drop Ta water bead of the Ta, elephant that spring the continuing light drizzle of the sort, water bead dozen wet snow-white pigeon son, but the pigeon son still keep strongly and without intermission looking for his beloved woman, see that mythic fungus grass will floating about, pigeon son any further have no some energy, he fall on the tree branch of this tree and surround on all sides, suddenly he shout loudly 1, a thing with red Xing drop down from the tree, at it fall in of place, long a small tree, but the pigeon son so and forever stop at tree up, expect of look in the eyes' being clear be long separation waiting for, looking for of lover.

而男人变成了一只鸽子不止的飞，经过了二天的飞翔终于飞回来了，飞到村口的时候他看到了他心爱的女人，只是比以前憔悴了很多，他努力地想飞到女人的身边，可是越近越看不清女人的脸，当他飞到女人的跟前时，女人消失了，在他眼前却是一颗树，从这颗树枝的树叶上落下了滴滴嗒嗒的水珠，就象那春季般的绵绵细雨，水珠打湿了雪白的鸽子，而鸽子还是拼命地不停地寻找着他心爱的女人，眼看着那颗灵芝草就要凋零，鸽子再也没有一点儿力气，他落在这颗树的树枝上，环绕着四周，忽然他大叫一声，一颗腥红的东西从树上掉下来，在它落下的地方，长出了一颗小树，而鸽子就那么永远地停在了树上，期盼的眼神分明在等待着、寻找着久别的恋人。

Now he worked in ajoint venture.

现在他在一家合资企业工作。

More troops in Afghanistan won't change any of the foregoing.

更多的在阿富汗的军队也不会改变之前的状况。