三叶草

The results offer the condition that these plants of Ajuga could be distinguished by size and ornamentation of exhymenine.

结果表明，同属三种植物的形态特征相似，可通过叶形及花期是否具基生叶，花萼的形态，花冠颜色以及茎的生长方式和植株被毛情况等予以鉴别；通过对三种植物的花、根、茎、叶及全草粉末的组织构造观察，认为种间差异较小，可依据毛茸的分布及形态特征和茎的木化程度不同加以鉴别；对三者花粉粒进行了扫描电镜观察，发现其大小和外壁纹饰具有明显差异，为三者的鉴别提供了有力的依据，也为该属的分类及植物花粉形态研究提供了花粉形态学方面的资料。

Key forage plants consist of alfalfa, erect milkvetch, tall fescue, perennial ryegrass, crownvetch, white clover, red clover alsike clover, common orchardgrass, smooth brome; planting divisions with obviously optimal combinations of forage plants in Henan province cover the following 6 respects:（1）Northern plain forage planting division;（2）North-west mountain area forage planting division;（3）Middle-east low lying plain and nan-yang basin forage planting division;（4）Western mountain area forage planting division;（5）Huaihe river-south and Tongbai mountain area forage planting division;（6）Eastern plain forage planting division;These conclusions will provide necessary theoritical data or base for right choose of foeage plants as well as great development of grass industry in the future in Henan province.

结果表明：适合河南省的当家草种有10种，分别是：紫花苜蓿、沙打旺、苇状羊茅、多年生黑麦草、小冠花、红三叶、杂三叶、鸡脚草、无芒雀麦；适合河南省草业优质发展的草种区域有6个，分别是：豫北平原牧草种植区、豫西北黄土丘陵和太行山地种植区、豫中东低洼平原和南阳盆地种植区、豫西山地种植区、淮南与桐柏山区种植区、豫东平原种植区，并且明确了各区域内以当家草种为核心的草种优化组合。河南省当家草种的制定和草种区划的确定有利于为河南省各地草种的正确选择和草业未来大发展提供理论依据。

Producing PHAs,and then were orientationally inserted into a prokaryotic expression vector pBV220. By analyzing the bioactibity and function of their products, the biological function of phaA, phaB and phaC was confirmed. These have been done in our laboratory. To make better use of the three genes by plant bioreactor, two groups of different plant expression vectors that can be used to produce PHAs in different plants were constructed, and the transformation of PHA in Oxalis triangnlaris has been preliminarily reseached.The following is the main results:Three plant expression vectors pBI121-A,pBI121-B and ubquiting-C, which can be used to be transformed into Oxalis triangularis were respectively constructed by using the phaA, phaB and phaC.

菌株的亚克隆基因组片段中，分离出phaA、phaB和phaC三个基因片段，定向克隆至原核表达载体pBV220，通过对其生物活性与功能分析，确证了基因phaA、phaB和phaC的生物学功能；为了通过植物生物反应器对这三个基因进一步研究利用，本实验利用这三个基因构建了两组可用于不同植物生产PHA的真核表达载体，并对紫叶酢浆草进行PHA基因遗传转化的初步研究，获得主要结果如下：利用克隆的phaA、phaB、phaC三个基因分别构建了可用于转化紫叶酢浆草表达载体pBI121-A、pBI121-B、uBquiting-C；可用于玉米转化的种子特异性表达载体p7S-A、pBI121-S-B、uBquiting-C。

Any of various plants of the genus Trillium, of North America, the Himalaya Mountains, and eastern Asia, usually having a single cluster of three leaves and a variously colored, three-petaled flower .

延龄草一种延龄草属的植物，产于北美洲、喜马拉雅山脉和东亚，通常有三片轮生的叶和各种颜色的三瓣花

In the first way, the other five medicines except Radix sophorae flavescentis against NDV was better. In the second way, the effect of Herba houttuyniae, Patrinia villosa juss, Rhizoma polygoni cuspidati and Radix isatidis to NDV was better, but Radix sophorae flavescentis and Folium isatidis had little effect. In the third way, Radix isatidis, Herba houttuyniae, Patrinia villosa juss were more effective than Folium isatidis, Rhizoma polygoni cuspidate. In short, the effects of Radix isatidis, Patrinia villosa juss and Herba houttuyniae on NDV were higher.The first of three more satisfactory complex composites obtained from the experiment was Folium isatidis, Herba houttuyniae, Rhizoma polygoni cuspidati, Patrinia villosa juss and Radix sophorae flavescentis.

在第一种加药方式中：只有苦参没有产生作用，其余五种药物抗NDV的作用均较强；在第二种加药方式中：鱼腥草、败酱草、虎杖、板蓝根效果较好，而苦参及大青叶则几乎不起作用；在第三种加药方式中：板蓝根、鱼腥草、败酱草有较强的作用，大青叶、虎杖次之，由以上结果可以看出在三种方式中，板蓝根、败酱草和鱼腥草抗NDV的作用较强。

In conclusion, Based on Leaf abaxial epidermis, Caryopsis morphology, Silica body, Molecular phylogeny, the present tresults differ from the tradtional study indicate that Perotis, Tragus and Zoysia are immerged into Chloridoideae the subfam. Eragrostis, the tresults of this thesis support the conclusion of Flora of China (Zhou T-Y et al, 2001) and the three genera is not independently treated as a tribe.

从叶表皮微形态、颖果和硅酸体形态以及分子系统学证据等方面来看，本文的研究结果与传统分类有所不同：结缕草属、锋芒草属、茅根属应放在虎尾草族，画眉草亚科，本文支持周太炎等(2001)《Flora of China》中的处理意见，取消结缕草族，将结缕草属、锋芒草属和茅根属做为虎尾草族的三个独立的属处理。

Born in spring buds, leaves the shape of the pomegranates, and soft, fine spring day in leaf was grass, summer months leaves tufted or a flower, between the similar to lilac platycodon, called phoenix after grass, adopt the shape of cherry and longer, ripe red, taste sweet and sour, autumn, winter son named by mining root yue barbary bone skin.

春月生嫩芽，叶之形似石榴之叶而柔软，春采叶名叫天精草，夏月叶间簇生三四花，一花之形似桔梗至小淡紫色，夏采花名为长生草，后结果实形似樱桃之实而更长，熟呈红色，味酸甜，秋采子名曰枸杞子，冬采根名曰地骨皮。

Based on the analysis of the contents of Cu, Pb, Mn, Zn, and Cr in the rhizosphere sediments of Phragmites australis and Scirpus mariqueter at tidal flat in Changjiang Estuary, the following conclusions can be drawn.

长江口滨岸潮滩芦苇与海三棱草根系、茎叶以及根际沉积物中Cu、Pb、Mn、Zn、Cr的含量分析发现，Cu、Pb、Zn、Cr在根系中的含量较高，而Mn在茎叶中的含量达到总量的55%以上。

The major dominant species of predatory enemies were Erigonidium graminicola and Theridion octomaculatum and their individuals were 81.4 percent of the total predatory enemy individuals of the community.1.2 Spatial patterns and their dynamics of major dominant predatory enemies ofarthropod communityThe research results showed that Pieris rapae distributed mainly on heart leaves and back of inner leaves of cabbage plants, Plutella xylostella distributed mainly on the back of cabbage leaves and Lipaphis erysimi distributed widely in cabbage plants. Among the major dominant species of predatory enemies, Sitticus sinensis distributed mainly on the front of leaves of cabbage plants in spring cabbage fields, and Misumenopos tricuspidata and Propylaea japonica distributed widely in cabbage plants.

在捕食性天敌中蜘蛛10种，捕食性昆虫3种，主要优势种为草间小黑蛛、八斑球腹蛛，其数量占捕食性天敌总数量的81.4%。1.2节肢动物群落主要优势种的空间格局及其动态研究结果表明，害虫优势种菜青虫主要分布于甘蓝心叶和甘蓝叶反面，小菜蛾主要集中分布在甘蓝叶的反面，而菜蚜在甘蓝植株内的分布较广；春甘蓝田捕食性天敌优势种中华跃蛛在外层叶正面分布较集中，三突花蛛与瓢虫类在甘蓝植株内的分布较广。

The water soluble carbohydrate content was reduced during the whole ensiling period, but was not decreased significantly from the 5th to 15th day.

试验三 利用体外产气法评定凤眼莲茎叶草粉分别替代不同比例（100%、67%、33%、0%）的青贮玉米、羊草和苜蓿的发酵动力学参数及有机物消化率。

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。