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个体植物

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Allometry is used to study and measure the relative growth of one part of an organism, in comparison with the other parts of the organism.

植物个体的异速生长是指生物体某一特征的相对生长速率不等于第二种特征的相对生长速率的特性,该特性是由物种的遗传性决定的一种固定特征,植物往往朝着最佳的异速生长曲线进化。

Characteristics of the individual ecological field gradient of the endangered plant Alsophila spinulosa was studied by constructing the individual ecological field gradient model.

通过构建濒危植物桫椤个体生态场梯度模型,研究桫椤个体生态场梯度的变化特征。

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。

Investigating the ecology environment and present situation of the endemic Cycas plants to Yunnan, especially the population structure and dynamics of C. Hongheensins and C. tanqingii. The results show that C. hongheensis is a critically endangered species because the number its individuals had decreased by 47% from 1992 to 2002 and no flowering and fruiting tree has found. While the population of C. tanqingii in Xiaoheijiang River is in a status of restoration because there are more young individuals and its age structure takes on the relatively stable shape of pyramid.

对云南苏铁属特有植物的生态环境、现状等进行了较为全面的调查,特别是对红河苏铁、潭清苏铁的种群结构和动态进行较为详细的调查,结果表明红河苏铁是一个极度濒危的种,2002年的个体数量比1992年减少了47%,连续3年的调查未发现具繁殖能力的个体;而潭清苏铁种群的年龄结构基本呈金字塔形,属较稳定的结构,且处于恢复期,繁殖更新基本正常。

Result 10 308 insects were identified, belonging to 9 orders, 43 families, 68 species of Insecta and I families, 1 species of Arachnida. The result revealed that the individuals of the pest sub-community were more than that of the natural enemies sub-community, the dominant concentration and dominance of the pest sub-community were the biggest, diversity index of the natural enemies sub-community was more than that of the pest sub-community.

结果]共调查昆虫10 308头,分属于昆虫纲9个目、43科6、8种以及蛛形纲1科、1种;野生植物害虫亚群落的物种个体数多于天敌亚群落的个体数,害虫亚群落的优势集中性和优势度最大,天敌亚群落的多样性指数大于害虫亚群落。

So there were 28 test fields in total. The research results showthat the plant species of soil seed bank has a low relationship with the vegetation in the collecting area, while which has close relationship with the seed disseminative type. The results also show that the tree species, number of germinant plants and the number of surviving plants are very different with the different covering thickness of top soil.

研究结果表明:土壤种子库植物种类组成与表土采集地的植被关联性较低,但与种子散布型关系密切;表土的不同铺撒厚度在木本植物出现的种类、出芽个体数、生存个体数等方面都表现出明显的差异性。

Fagus sylvatica L.belong to the Troll architectural model.The difference in morphology,anatomy,physiology and genetic diversity among different species and among the populations of a species in different ecological conditions were significant for Fagus sylvatica L.

我国学者阳含熙[4]在'植物个体的新认识'一文中提出高等植物的基本构件单位是芽、小枝、分蘖以及其它可以重复的单位,植物构件数目和构件大小可以随不同条件发生变化。

In different degree of saline and alkali conditions controlled in lab or under field, contents as followed were determined: the absorption, transportation and distribution of major cations Na~+, K~+, Ca~(2+and Mg~(2+) in indicator plant; organic solute, and antioxidase activities, including superoxide dismutase, catalase and peroxidase POD characteristics of individual, population and community of the plant. Responses of the indicator plant to environment from physiological to community aspects were systemically discussed in this document.(1 Vegetional characteristics and edaphic indicators including bare patch index, dry biomass, percent cover by perennial plants, growth indicators of Leymus chinensis, soil organic matter and pH were sensitive to saline-alkali grassland degeneration.

运用室内控制和野外试验相结合的方法,调查和测定在不同土壤盐碱条件、不同季节里,主要元素Na~+、K~+、Ca~(2+)、Mg~(2+)在植物体内吸收、运输和分布的变化状况;研究不同土壤离子浓度下,指示植物体内渗透调节物质——脯氨酸和糖类、超氧化物歧化酶、过氧化物酶和过氧化氢酶活性等指标的变化响应情况;研究不同盐碱梯度下,植物个体、种群、群落的特征;系统的从生理生态角度探讨指示植物对盐碱环境的响应:(1)植被特征指标:裸地指数、生物量、多年生植物覆盖率;羊草生长状况指标:土壤有机质含量、pH可作为松嫩平原退化评价的指标。

The results of microsatellite amplification showed that (1) the genetic relationship is closer among the same body colour bio-type individuals of green peach aphid than that between the red and the green bio-type individuals from three kinds of host plants.

微卫星扩增结果表明:(1)来自不同寄主植物上的同一体色生物型个体之间的遗传关系近于不同体色生物型个体之间的遗传关系。

Now the model research has been use to explore the affection of the gene on the plant growth, and the virtual plant had been probed into from three level, i.c., micro level, individual level and the macro level.

现在,已经发展到了微观水平,开始研究基因与植物形态关系,形成了以虚拟植物模型为中心,以植物个体形态为主导的宏观、中观和微观3个层次的研究格局。

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Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

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