植物的

What's worse, they think that the temperature condition is not necessary for seeds to come into leaf and that plants can also grow well without fertilization.

学生对於植物生长的另有概念包括将根与茎的名词定义错误，认为植物是「先长茎再长根」或「先长果实，后开花」；并对植物器官的功能不熟悉；缺乏植物的「花」、「果实」具有传宗接代等繁殖概念；「温度」条件对种子发芽而言是非必要的；植物有「施肥」就长得更好，没有施肥也不会怎样；知道植物可以用种子繁殖，除了种子以外可以繁殖的器官学生多数只看过落地生根用叶子繁殖，缺乏更多的实际经验。

Also,the differences between those in sandy habitat and those in non-sandy habitat are significant.2 There existed two common factors called macroelement factor and trace element factor,which indicate the contents of macroelements and trace elements in the plants respectively.

豆科与禾本科相比，豆科植物因其具固氮能力，所含大量元素水平较高，而禾本科植物因细胞壁硅质化，含微量元素稍高；沙质生境因其养分贫瘠，植物的大量与微量元素均较非沙质生境中的低；特别是本区地带性土壤-栗钙土与特异性生境沙带中的疏林沙土相比，疏林沙土上植物大量与微量元素含量较栗钙土区植物明显偏低。

Phytogeography which study flora geography and vegetation geography research the relation between the plant distribution and space and time. It has great meaning for studying plant distribution , flora evolve , protection and utilization of plant resources, vegetation evolve etc..

植物地理学研究植物区系地理和植被地理即植物分布与空间及时间的关系，对于研究植物的分布、区系演化、植物资源保护和利用、植被演替等均有重大的意义。

Plant taxonomy and plant systematics may more emphasize on the evolution of plants and their relationships.

植物分类学和植物系统学则强调植物分类的系统性，强调植物的演化及亲缘关系，涉及植物的范围要比树木学广泛。

Of, belonging to, or characteristic of the family Leguminosae, which includes peas, beans, clover, alfalfa, and other plants.

豆科植物的豆科植物的，属于豆科植物的，具有豆科植物特点的，这种豆科植物包括豌豆、蚕豆、翘摇、紫苜蓿及其他植物

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。

In addition,preliminary investigation about the correlations in the taxonomy, chemical constituents and pharmacological activities of Schisandraceae were reviewed based on references.Several correlations between the modern pharmacological researches and traditional therapeutic effects have been found.Moreover,it was also demonstrated the different pharmacological activity is related to the characteristic components of the two genera which provided the theoretical evidence to the further utilization of these plants.

同时，本文还综合了五味子科植物的传统分类学、化学成分研究、现代药理学研究及传统疗效的调查，对五味子科植物的药用植物亲缘学进行了初步探讨，发现五味子科药用植物的现代药理活性研究与传统疗效之间有很好的相关性，且很多活性也找到了相对应的物质基础，同时也向我们提示两属植物功效主治上差别的物质基础与特征性成分有关，为合理开发利用本科药用植物资源提供了理论依据。

With increasing altitude,pollen numberdecreased and length of stylar ramification increased gradually.Increased stylarramification of plants of Saussurea with increasing altitude has importantadaptive significance of evolutionary ecology.It ensured sexsual reproductivesuccess,provided a foundation of hereditary variation and increased specificdiversity.In addition,asexsual reproduction of most species of Saussurea assuredindividual quantity.

根据我们调查，生活在青藏高原东缘的多数风毛菊属植物都具有无性繁殖方式，它保证了风毛菊属植物物种的个体数量，而花柱分枝的变长保证了风毛菊属植物的有性繁殖成功，为风毛菊属植物在该地区的进化提供了遗传变异的基础，增加了风毛菊属植物的物种多样性，使得风毛菊属植物的多数物种都成为该地区的常见种，也可能是青藏高原地区是风毛菊属植物的现代分布中心的原因之一。19。

The problem of plant's tolerance to salt is mainly the tolerance to NaCl. The research is mainly focused on two aspects: First, the study of salt-tolerance physiology in halophytes; second, the study of the injurious physiology in nonhalophytes. Thereby we can understand how to ameliorate or increase the plants'salt-resistance.

植物的耐盐问题，主要是指植物对NaCl的耐性问题，植物耐盐生理的研究，主要从两个方面入手：一是研究盐生植物对盐度的耐性生理；二是研究盐度对非盐生植物的盐害生理，从而了解改善和提高植物抗盐能力。

The comparation of the treatment between the microcosms with plants and without plants was also considered.

结果表明：(1)植物生长过程中，植物高度能反映污水处理效果总体仁的变化；(2)在植物的生长过程中，各人工湿地系统污水处理能力总体上持续增强，各水质指标pH、DO、TN、NH3-N、NO3-N、TP和COD等均呈下降趋势，其中TP和COD呈逐步下降，pH、DO、TN、NH3-N、NO3-N则呈现锯齿形波动，但总体上仍是下降过程；(3)植物系统氮处理能力好于无植物沙滤系统，而对磷TP和COD的去除则恰好相反；(4)不同植物对人工湿地污水的处理效果影响不明显。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。