多年生的

Meanwhile, we highlight several research corners for future further study, the trade-offs on resource allocation within perennial plant had not been proved, the relationship of neighbor effects and reproductive allocation was still not so clear for individual plant, there was no definite conclusion on perennial plant reproductive strategy under different neighbor effects and different habitats. The relationship between reproductive allocation and sexual allocation , the cause of resource distribution in anthotaxy structure, the similarities and differences of reproductive allocation and the maintain mechanism within all kinds of reproductivest rategy need a further investigation. In addition, a molecular study is required for explaining the variation mechanism and the biological meanings on seed size research.

指出生活史研究仍存在不足首先是研究内容上，资源分配在多年生植物中的权衡仍未被有力证明，邻体效应与繁殖分配的关系在个体水平上仍不明了，多年生植物在不同邻体效应和生境下将采取何种繁殖对策目前尚无明确的结论；繁殖分配与性分配之间的关系，引起花序结构上资源分配差异的原因，各种繁殖对策中繁殖分配异同与维持机制等问题仍有待于进一步的研究；种子大小的变异机制以及生物学意义仍未得到令人满意的答复，更需分子水平上的研究来解释其机理。

Persistence of grazing mixed pasture has been a key issue in environment conservation and sustainable utilizing of resources in karst region. Under moderate grazing with Corriedale sheep, the productivity and botanical composition of Trifolium pratense mixtures were studied over a 20-year period in karst region of southwest China. Four mixtures consisted of Trifolium pr...

用考力代绵羊轮牧，在牧前和牧后草地现存量(干物质，DM，drymatter)分别为1800~2500(草层高15~18cm)和900~1200kg·hm-2(草层高3~5cm)的适度放牧利用条件下，对亚热带最常见的豆科牧草红三叶与禾本科牧草的两两混播草地的群落生产力和持久性开展长期研究。20年的结果表明：适度放牧利用下，群落地上总生物量长期稳定，各组合间差异不显著，总盖度20a后仍高达97%以上；适度放牧有利于牧草的生产力持久性，红三叶、鸭茅、多年生黑麦草和黑穗画眉草都在群落中长期存在；群落净产量和持久性是尺度依赖的，群落长期净生产力以红三叶+鸭茅的最高(DM产量353.3g·m-2·a-1)(P.05)，对杂草侵入的抵抗力最强，而前10a红三叶+多年生黑麦草有很高的净生产力DM产量449.8g·m-2·a。。。

Although not quite as permanent as perennials, many biennials re-seed themselves, becoming comparable in performance to perennials. Biennial seeds that are planted one year will not flower until the following year. Foxglove, Hollyhock and Iceland poppy are biennials. Many people think of Hollyhock as a perennial as it self sows easily.

虽然没有那么长期稳定，很多两年生植物能够自我繁殖生长，这个是能够跟多年生植物相提并论的地方，两年生植物的种子在第一年播种种植之后并不会开花直到下一年，毛地黄、蜀葵和冰岛罂粟是两年生植物，许多人把把蜀葵当作多年生植物，因为他自我繁殖非常容易。

We in this project studied module dynamics, physiological integration between modules, and the relationship between module dynamics and environmental change including physical and biological interaction for perennial herb Scirpus mariqueter, annual cotton, and tree species of Querucus fabri.

本项目分别以多年生草本克隆植物海三棱麃草，一年生农作物棉花和多年生高大乔木栎树为研究对象，研究了这几种不同构件特征集合体的构件动态、构件间的生理整合及其对环境变化的响应、构件动态与环境因子的变化关系，构件动态与动物侵食的关系等。

In order to analyze the conservation of maize centromeric satellite DNA and centromeric retrotransposon in the subspecies and relatives of Zea mays, dual fluorescence in situ hybridization was used to detect the existence and distribution of the above two repetitive sequences in Zea mays ssp. mexicana, Z. diploperennis, Z. perennis, Tripsacum dactyloides, Coix lacryma-jobi, and Sorghum bicolor.

为分析玉米着丝粒卫星DNA和着丝粒反转录转座子在玉米种的亚种及近缘种中的保守性，采用双色荧光原位杂交检测了这两种重复序列在墨西哥玉米、二倍体多年生类玉米、多年生类玉米、摩擦禾、薏苡、高粱中的存在和分布。

The shrubs and perennial grasses had no change, the species composition of perennial forbs decreased as the stocking rates increase, and made the community structure and composition simplification.

灌木类和多年生禾草特性比较稳定，多年生杂类草随著载畜率的增加物种组成下降幅度较大，使得群落结构和组成随载畜率的增加趋於简单化。

The change of plant functional types'importance value reflects the community members'alteration and orientation of community succession, that is: perennial grasses gradually take the place of annual or biennial forbs and perennial forbs, finally occupy dominant position in climax community.

植物功能群重要值的变化反映了群落成员型的更迭、群落演替方向，即：多年生禾草类不断取代1、2年生杂草和多年生杂草的地位，在演替顶极中最终占主导地位。

After 25 years of traveling across more than 90 countries, one Interior Design Hall of Fame member is exploring Africa—in the Clodagh for Perennials outdoor fabrics collection. The 10 Perennials designs pulse with energy, balanced by the calm of an earth-toned palette. Seven are jacquards in solution-dyed acrylic, including the thatched roofs of It Takes a Village and the tribal shield of Amazed.

经过了25年，穿越了90多个国家，一个室内设计名人堂的成员为了探索户外面料在非洲的克劳达芙进行了对多年生植物的收集，其中的10年用来为多年生植物设计脉冲能量，它靠地面缓和调色板的平静来达到平衡。7年时间用来在解决染色腈纶的提花问题，包括村落里建造的茅草屋顶和令人吃惊的部落盾牌。

Result The red-flowered strawberry variety Pink Panda had stronger adaptability to the low temperature range of-15~-20℃ and its LT50 was only 3.03℃ higher than that of L. perenne, so, its cold resistance was near to L. perenne and it could live through the cold winter in open field in mostly area in northern China.

结果］红花草莓品种&粉红熊猫&在-15~-20℃的低温范围内有较强的适应能力，与多年生黑麦草的半致死低温相差仅为3.03℃，说明该品种的抗寒性接近多年生黑麦草，能在北方大部分地区露地安全越冬。

The results showed :(1)During the trial period, through the tall fescue, Kentucky bluegrass, perennial ryegrass turfgrass of the observed indicators, Tall fescue the resistance, and perennial ryegrass on soil moisture less sensitive resistance.

研究结果表明：(1)在试验期内，通过对高羊茅、草地早熟禾、多年生黑麦草的各坪用指标观察发现，高羊茅的抗逆性好，多年生黑麦草对土壤水分敏感抗逆性较差。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。