生长物质

The well-cultured HaCaT cells were divided into blank control group, three oxymatrine groups pretreated with different concentrations (10, 50 and 100 mg/L) of oxymatrine, and substance P group.

选择生长良好的HaCat细胞用于实验，分为空白对照组，小、中、大剂量氧化苦参碱组（分别加入10，50，100 mg/L氧化苦参碱）和P物质组。

It proves that tree top leaves suffer from water stress and hydraulic limitation becomes greater with tree height.Water stress influence tree height growth in several aspects:firstly is the influence of exterior water condition,and community average tree height is positive with exterior water condition.Secondly, hydraulic limitation influences individual tree structure and function.Xeromorphic structure,Lower water potential and turgor pressure limit cell division and expansion,which restrict gas exchange and carbon assimilation capability.However,respiration consumption increases with the spread of tree crown.Shortage of nutrient limits carbon investigation on new leave growth and may ultimately limit tree growth.Thus,the main limitation of tree height is water.

水分对树高生长的限制首先是外在的水分状况，群落的总体高度随外界水分状况的变差而变矮；再就是水力限制对单株树木的结构和功能的影响，水势降低、膨压减小使细胞的分裂和扩展受限，旱生型结构加剧水力对气体交换能力的限制、使光合碳同化能力受到限制、而呼吸消耗却随着树木个体的增大而增大，制造营养物质不足、使得营养亏缺、造成投入新枝叶的营养受限，最终限制了树高继续增长。

A larger amount of tissue-building material is needed for growth, during pregnancy and lactation, as well as after an illness during which body substance has been used up as shown by loss of weight.

无论是在怀孕或哺乳期，还是在大病一场因体内物质耗尽而体重减轻后，都需要大量的构造人体组织的材料来保证人体的生长。

Previous research showed that plants—in that study they used a plant called the Great Lakes sea rocket—can recognize the root systems of siblings from the same momma plant and will give them a more fair share of nutrients in the soil.

之前科学家们用一种生长在五大湖区的海紫花南芥已经研究发现，它能够识别出与自身存在亲缘关系的植物根系，并会慷慨地与其分享土壤中的营养物质。

VA mycorrhizae could enhance plant dry weight and improve plant P concentration, as well as increase the resistance to drought and water utilization efficiency under water stress and normal water supply at the same P application level.

在水分胁迫和正常供水条件下，施磷量相同，接种菌根组的地上和根系生物量干重显著高於不接种组，干物质累积增加，减轻水分胁迫对植株生长的抑制程度，改善了植株体内磷素养分状况，提高了白三叶对土壤磷的有效利用及水分利用率。

The submodel quantitatively characterized the impact of genotypic differences on sowing date and sowing rate by tillering ability and percentage of final spikes to effective tillers, and the suitable pre-winter leaf number on main stem in relation to yield target is quantified according to the principle of determining spike number from yield level and leaf number from spike number.

其中，播前方案设计的知识模型包括产量目标，品种选择，播期确定，基本苗及播种量的计算，氮、磷、钾肥料运筹和水分管理；动态调控指标的知识模型包括适宜生育期，穗分化进程，群体茎蘖动态、叶龄动态、叶面积指数动态和干物质积累动态等生长指标动态以及有效叶面积率、高效叶面积率和粒叶比等源库指标。

As the age of white clover increasing, the allelopathic effects of aqueous extracts from the aerial part enhanced, the content of hydroxybenzene increasing and the activity of PAL showed the trend of increasing.

随着白三叶草生长年限的增加，地上部分水浸液的化感作用增强，酚类物质的含量增多，PAL的活性也呈现递增趋势。

Objective To study the changes in nutritional and harmful components of vegetables grown in plastic greenhouses.

目的 研究塑料大棚环境下生长的蔬菜中有害物质含量及营养成分的改变。

This product is at the micro-organisms are dormant, to preserve the stability of easily put into the water body, the dormant viable recovery and will soon collapse and the multiplier into a dominant population reproduction, the rapid decomposition of organic pollutants in water, the elimination of amino nitrogen in the water , nitroso nitrogen, hydrogen sulfide and other harmful substances, and single-cell algae into the source of nutrition, the promotion of diatoms, green algae, such as good growth, inhibit the propagation of harmful algae, play a role in the rapid fertilizer, at the same time can increase the dissolved oxygen water, purification at the end of quality, improve water quality.

本品微生物均处于休眠状态，稳定而易保存，投放到水体后，休眠活菌能很快复苏和崩解，并以倍数繁殖成优势种群，迅速分解水体中的有机污染物，消除水中氨基氮、亚硝基氮、硫化氢等有害物质，并将其转化为单细胞藻类的营养源，促进硅藻、绿藻等优良藻类的生长，抑制有害藻类的繁殖，起到迅速肥水的作用，同时能增加水体溶氧，净化底质，改善水质。

Endogenous opioids are known to modulate cell growth.

内源性阿片类物质可以调节细胞的生长。

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。