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Structure index was significantly (P.05) different among three plant species whereas channel index and enrichment index were not. Plant species not only modified abundance of plant-feeding, omnivorous and predatory nematodes, but also percentage of each trophic group. Bacterivorous and fungivorous nematodes were affected most by the differences in plant species.

研究表明在沙地生态系统中，3种植物根际土壤线虫群落的多样性、丰富度、均匀度和线虫总数虽然都存在一定的差异，但不显著；功能多样性指数中结构指数存在显著差异，而通道指数、富集指数不存在显著差异；3种植物对根际土壤线虫群落中各营养类群线虫的比例有显著影响。

Convey albumen immunity with rarefied LTb 8 Zhou Ling BALB/c rat 3 hind, after taking lienal cell and cell of SP2/0 bone myeloma to undertake confluence, undertake filtration with indirect ELISA and finite and attenuant law, obtain 4 individual plant to be able to stabilize the individual plant of cross tumour cell that secretes antibody of Chan Kelong of LTb of bacili of bowel of the Chinese People's Anti-Japanese Military and Political College, antibody of odd clone of this individual plant names for 1F2, 2C2, 3D6, 4H6 individual plant.

用纯化的LTb表达蛋白免疫8周龄BALB/c鼠3次后，取脾细胞和SP2/0骨髓瘤细胞进行融合后，以间接ELISA和有限稀释法进行筛选，获得4株能稳定分泌抗大肠杆菌LTb单克隆抗体的杂交瘤细胞株，该株单克隆抗体命名为1F2，2C2，3D6，4H6株。

Two sibling species Helicoverpa armigeraH(u|¨bner and H.assulta are serious crop pests in China.They have the similar morphological,biological and ecological characterstics,as well as they can even hybridize with each other.Their host plant ranges, however,are quite different.The former is a typical polyhpagous species,and its host plant range including at least more than 60 crop species such as cotton,corn,wheat,soybean, tobacco,and tomato,and 67 wild plant species from about 30 plant families including Malvaceae,Solanaceae,Gramineae,Leguminosae,etc.

可同域发生的棉铃虫Helicoverpa armigeraH(u丨¨bner和烟夜蛾H.assulta是铃夜蛾属两近缘种昆虫，二者具有相似的生物学和生态学习性，甚至杂交可育，但它们的寄主范围却截然不同，棉铃虫是多食性昆虫，烟夜蛾则是典型的寡食性昆虫。

The invention relates to coated seeds of certain plant species, the seeds having a coating for improving the efficiency of phosphorus in the plant nutrients during the early growth of the plant, the coating comprising : i an aqueous fixing agent which contains a fluid byproduct of agriculture or fermentation and possibly an emulsified oil, and ii a fertilizer powder which, depending on the plant species, is monopotassium phosphate, monocalcium phosphate, dicalcium phosphate, or urea phosphate.

本发明涉及某些植物品种的包衣种子，所述种子具有能提高植物生长的早期阶段的植物营养物中的磷效率的包衣，所述包衣含：i含农业或发酵的流体副产品和可能含有的乳化油的含水固定剂，和ii肥料粉末，所述肥料粉末根据植物品种是磷酸二氢钾、磷酸一钙、磷酸二钙或磷酸尿素。

Phytase mainly comes from plant and organism, phytase of plant belongs to 6-phytase and it s optimum pH ranges from 5.0 to 7. 5. Plant phytase can not function effectively in monogastric animals and it is not rich in plant. So research direction about phytase is turned to Aspergillus niger which is rich in acid phytase.

植酸酶主要来自于植物和微生物，来源于植物的植酸酶均属于6—植酸酶，最适pH范围在5.0—7.5，不适合在单胃动物中起作用的，而且在植物中含量极低，因此植酸酶的研究方向转向最适pH值为酸性、酶含量较高的丝状真菌。

The plant floating-bed technology application in Miaojia river showed that the water quality of the plant foating-bed technology applied had preceded evidently than the comparing water, though the water quantity was exchanged largely. There existed a micro-ecosystem at the root aera of floating-bed plant which mainly consists of organic grain, algae, zooplankton, zoobenthos. The mode of "Oenanthe javanica -Ipomoea aqutica" floating-bed mode application realized the whole year run of plant foating-bed technology on polluted water. Hence, the mode is suggested in the following application.

植物浮床技术在苗家河的示范应用研究说明：在水量交换较大的情况下植物浮床技术仍然使示范河段水质优于对照段；浮床植物根际区存在着以有机颗粒、藻类、浮游动物、底栖动物为网络骨干的根系微生态系统：&水芹菜-水蕹菜&浮床模式可实现四季净化污染河水的周年运转，在后续应用中推荐使用此模式。

Botanical experiments are one of important parts linked to the theoretical study of Botany. Through the experiments, students are required to understand the basic theory, knowledge and skills in relation to botanical experiments and study of plants. With the methods and skills learned, students are expectedto have the ability to study the morphogenesis and structure of plant organs in plant ontogenesis as well as morphological characteristics of main plant groups, representative plants, and their positions in plant kingdom and evolution in phylogeny.

植物学实验是植物学理论联系实际的重要课程之一，通过对本课程的学习，要求学生掌握植物学实验的基本理论和基本知识，以及研究植物的一些基本方法和基本技能，并运用这些方法和技能去研究植物个体发育中植物器官的形态建成与结构；学习植物系统发育过程中植物界各大类群主要的形态特征、代表植物，它们在植物界中的地位及演化规律。

The secondary root number per plant of Yumai No 49,a mi d-s trength quality wheat,is the smallest among the three varieties except the winte r stage but its root system quality is the best;the intensity of reducing TTC an d the activity of SOD of fresh wheat root are the highest during the period fro m winter stage to flag leaf stage.Since flag leaf stage,its physiological charac ters are weaker and have bigger variation during whole stage.The secondary root number per plant of Yumai No 50,a soft quality wheat,is the biggest except duri ng winter stage,and its dry weight of root of single plant is the heaviest in ev ery stage.Before 19th,March,its intensity of reducing TTC is the weakest and dec reases abruptly after flag leaf stage,but its activity of SOD decreases slowly.R oot dry weight per plant of Yumai No 34,a high quality wheat,is the smallest amo ng the three varieties and its root system quality is the weakest.Before jointin g stage,the intensity of reducing TTC is stronger,but after that,it decreases sl owly though it is smaller,and the activity of SOD decreases slowly in every stag e.

中筋小麦豫麦49号除越冬初期外，其它各时期单株次生根条数均为最少，单株根干重介于豫麦34号及豫麦50号之间，单根质量高；越冬初期至挑旗期，根系活力、根中SOD活性均强于其它两个品种，挑旗后，根系生理活性较小，整个生育期根系生理活性变化幅度大；弱筋小麦豫麦50号除越冬初期外，其它各时期单株次生根条数均最多，单株根干重各时期均为最大；拔节前根系活力最弱，挑旗后根系活力下降幅度较大，根中SOD活性较强且各时期变化幅度不大；强筋小麦豫麦34号，单株根干重最小，根系质量最差；拔节前根系活力较强，拔节后根系活动较弱，下降速度缓慢，根中SOD活性各时期变化幅度较小。

From the appearance characteristics of plant community,the synusia structure of plant community in Minqin desert grassland was composed of simple herbaceous and shrub layer,and individual plants was dwarf,small crown,low biomass,with an average altitude of 0.60 m and lower than 1.00 m~2 crown;except for Nitraria,Zygophyllaceae and Caragana,the fresh weight of per plant biomass of most plant were below 1000 g / individual.

8从植物群落的外貌特征来看，民勤荒漠草地各植物群落的层片结构是由简单的灌木层和草本层组成，且植物个体矮，冠幅小，生物量低，平均高度在0.60m以下，冠幅在1.00m~2以下；生物量除了白刺、泡泡刺和柠条外，大多数植物的单株生物量鲜重都在1000 g/株以下。

Isolated plant cells have totipotency , it can develop into a whole plant. under some isolated conditions, every cell can develop into a whole plant as the same as matrix plant

离体的植物细胞具有发育上的全能性，能够发育成为完整的植物体，在一定培养条件下每个细胞都可发育成一个与母体一样的植株。

As of Tuesday, Google's results were still censored in China.

截至周二，谷歌的搜索结果仍受中国审查。

In order to make the positive action increase and negative one decrease, the sub-forces of the social factors must be adjusted to form a centripetal force.

在这一过程中，人的主体性发挥是社会有机体健康发展的灵魂。