禾本科

Many vegetal cells accumulate a great deal of betaine under stress conditions, especially Chenopodiaceae and Gramineae, improving cell osmoregulation ability and stabilizing structure and function of intra-cellular macromolecule protein and biomembrane.

在盐分胁迫下，许多植物特别是黎科和禾本科植物细胞中大量积累甜菜碱，可提高细胞渗透调节能力，稳定细胞内大分子蛋白质和生物膜的结构与功能。

The weed seeds of 21 species belonging to 14 families (mainly Gramineae, Primulaceae, Polygonaceae, and Chenopodiaceae) could be dispersed into the paddy field by irrigation water.

有14科21种杂草种子随灌溉水流输入稻田，这些杂草种子主要隶属禾本科、报春花科、藜科、蓼科等。

The AMF spore average density was 24.88 per 20 g soil , the species richness was 1.94 per soil sample, the species diversity index was 2.56, and the species evenness was 0.65. Glomus, but they all were of prominent genus in the investigation area and Acaulospora, Scutellospora were of common genus while Entrophospora was rarely found. In the 13 species AM fungi, G.mosseae was of prominent species, and G.geosporum, G.intraradices, G.etunicatum were of common speices, while the others were of rarely species. There were 87.5% sand fixation plant were infected with arbuscular mycorrhizal fungi, the highest spore density, the strongest infection strength of the whole roots and the best species richness belonged to Chenopodiaceae while Polygonacea was the lowest.

四属AM真菌中，Glomus为优势属， Scutellospora 、Acaulospora为常见属，Entrophospora则为稀有属；十三种AM真菌中，G.mosseae、G.geosporum分别为优势种、最常见种，G.intraradices，G.etunicatum为常见种，其余均为稀有种；五科固沙植物中，87.5%的植物能被菌根侵染，其中藜科植物孢子密度最高，整个根系侵染强度最强，种的丰度最高，蓼科植物孢子密度、整个根系侵染强度、种的丰度则最低；禾本科植物不仅具有最好的丛枝结构，且具有相对高的亲和性，能与12种AM真菌共生。

A comparison of photosynthetic rate, transpiration rate, w ater use efficiency, stomatal conductance, intercellular CO 2 concentration and vapor pressure deficit at the leaf surface between Poaceae C 4 plants (Chloris virgata and Setaria viridis) an d Chenopodiaceae C 3 plants (Chenopodium album and Chenopodium glaucum) under the simulated photosynthetic radiation was conducted in this st udy.

利用人工模拟光源研究了两种 C4 光合途径禾本科植物和两种 C3光合途径藜科植物的光合速率、蒸腾速率、水分利用率、气孔导度、胞间 CO2 浓度及叶面饱和蒸气压亏缺随模拟光辐射增强的变化规律及 Gs、Ci、Vpdl对 Tr和 WUE的影响。

The results in these three regions have been given that (1) Ephedra, as dry and desert vegetation, the average percents are 7.7 in Yang Lake, 4.2 in Kunlun Rive, 7.5 in Doucuo Lake, and the datum in Yang Lake is higher than others;(2) Gramineae, as humid vegetation, the average percents are 1.2 in Yang Lake, 4.9 in Kunlun Rive, 12.0 in Kuhai Lake, increasing gradually from west to east;(3) Artemisia, as humid vegetation, the average percents are 22.2 in Yang Lake, 43.6 in Kunlun Rive, 48.8 in Kuhai Lake, increasing gradually from west to east, too;(4) Chenopodiaceae, as dry vegetation, the average percents are 52.1 in Yang Lake, 42.4 in Kunlun Rive, 11.5 in Kuhai Lake, however, decreasing gradually from west to east;(5) Artemisia/Chenopodiaceae ,the average data, as environmental changing index, are 0.45 in Yang Lake, 1.23 in Kuniun Rive, 5.59 in Kuhai Lake, increasing gradually from west to east, and there is higher data scope during 3.0~4.3 ka BP in these two lake sediment profiles, then decreasing;(6) Ephedra/Artemisia, data are all increased but the amplitude is different, such as 0.45 in Yang Lake, 0.34 in Kunlun Rive, 0.28 in Kuhai Lake, decreasing gradually from west to east.

代表气候湿润的禾本科花粉平均百分含量，三个地区分别为：1.2%、4.9%、12.0%，从西向东数值逐渐升高。③代表气候湿润的蒿属花粉平均百分含量，三个地区分别为：22.2%，43.6%，48.8%，从西向东数值逐渐升高。④代表气候干旱的草科花粉平均百分含量，三个地区分别为：52.1%，42.4%，11.5%，从西向东数值逐渐降低。⑤依据蒿属、藜科花粉百分含量，计算出环境变化指标，蒿属／藜科值，三个地区的平均值分别为：0.45，1.23，5.59，从西向东比值逐渐升高，⑥麻黄属／蒿属值，在全新世晚期，三个地区都呈上升趋势，但幅度存在差异，分别为：0.45，0.34，0.28，从西向东数值逐渐降低。

Betula, Quercus, Corylus, Alnus, Tsuga and a little amount of Pinus were ia little aggregation in the mountain slope near the marshland This is suggested to be caused by modern people's activity.

菊科。禾本科和莎草科等；在沼泽周围的山坡上，长有桦、栎，榛、桤木、铁杉等和极少量的松，冷杉仅以片状小群聚散居于附近的山坡上，这是近代人为活动干扰的结果。

Plant protease inhibitors as a resisting pest resource was more studied besides Bt gene, the distribution is widely, especially in the leguminosae, solanaceae, gramineae, cucurbitaceae and cruciferae plants.

植物蛋白酶抑制剂是除Bt之外又一个愈来愈研究较多的抗虫基因资源，其分布广泛，在豆科、茄科、禾本科、葫芦科及十字花科等植物中存在较多。

With grass plant-based, as well as Cyperaceae, Leguminosae, and Compositae.

以禾本科植物为主，还有莎草科、豆科和菊科植物。

The results showed that,in different typical fields,all kinds of weeds belong to 22 families,55 species mainly including Gramineae,Compositae,Cruciferae,Chenopodiacea,Caryophyllacea,Cyperaceae and so on.The distribution of weed clony in different fields has apparent differenciation.Relative abundance analysis indicates that a...

研究结果表明，调查样地出现的各种杂草种类共22科，55种，主要为禾本科、菊科、十字花科、藜科、石竹科和莎草科等；不同作物田块的杂草群落的分布存在显著差异；通过对相对多度的分析，开封郊区的杂草种类可主要分成两个聚类。

The effect of five treatment: 60, 75, 90 g/hm^2 of Sindax WP, 1.5 kg/hm^2 of Tashan WP and CK, on the rice paddy weed were designed in field plot experimented. After application, the number of living Gramineae, Cyperaceae and broad-leaved weeds was investigated on the 15th and 30th day respectively and separate and the number and fresh weight of them were counted on the 50th day, so the control effect was calculated.

方法］在小区设10%新得力WP 60、75、90 g/hm^2，塔山牌敌扑混剂WP 1.5 kg/hm^2和空白对照5个处理，施药后15、30 d分别调查禾本科、莎草科和阔叶杂草残存活株数，施药后50d调查主要杂草的残存活株数和鲜重，计算防除效果。

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。