生长物质

The study indicates that the content of soil carbon is on the low side because human behavior has a negative effect on sloping cropland. However, the content of every group soil carbon increased drastically by planting Robinia . With the increasing of the time of conservation, the relationship is very remarkable. After 50 years of restoration, the content of TOC, LOC, NLOC and AI in the study plot increased by 271%,174%, 467%, and 271%, respectively, compared with sloping cropland. The increasing speed of NLOC was faster than LOC. It is assumed that the increased carbon by restoration is stored in an inactive form to produce active matter which is necessary for biont. And the soil carbon must keep active to fulfill the balance of carbon dynamic transformation. At initial stages, soil carbon management index increased remarkably.

营造刺槐林可以显著增加土壤碳库各组分含量，并随恢复年限呈显著线性关系，50a时TOC、LOC、NLOC和碳库指数分别较坡耕地增加271%、174%、467%和271%，其中NLOC增加速率略高于LOC，表明植被恢复增加的土壤碳素绝大多数以非活性形态贮存起来，而为了满足生物生长所必须的活性物质来源，土壤碳库必须维持一定的活度状态来满足碳素的动态转化平衡，碳库管理指数在营造刺槐林初期显著降低，随后先增加后降低，与刺槐林生长特性密切相关；但与天然林相比差距仍然较大，恢复50a时TOC、LOC和NLOC仅为侧柏林的49%、34%和61%。

On the hypothesis that growth hormone is responsible for the normal development of fruits,we compared the relative auxin contents of fertilized and unfertilized bolls of the cotton plant.

根据可溶性碳水化合物的分析和 C~(14)追踪试验结果，我们认为在生殖生长和营养生长之间存在着营养物质的竞争。

The item includes substances intended for use as growth-regulators, defoliants or desiccants and any substance applied to crops either before or after harvest to protect the commodity from deterioration during storage and transport.

该项目包括用作生长调节剂、落叶剂或干燥剂的物质以及在农作物收获前后用来保护物品在储存和运输中变质的物质。

The results showed that biomass accumulation of maize plants accorded with the S-shaped curve as plants developed.

结果表明，玉米植株干物质积累与生育进程的关系呈S型生长曲线；在群体干物质积累速率和最终积累量都表现出先玉335高于郑单958及长城799的趋势。

The methods of field experiment, simulation experiment and analysis were used to study the effects of the different measures (i.e., mulching, fertilization and irrigation) to control the supply of water and nutrients on nutrient uptakes, accumulations and translocation of winter wheat; and their relationship with the accumulations of dry matter and water use efficiency were also analyzed.

因此，本研究以冬小麦为供试作物，采用田间试验、模拟试验和室内分析等相结合的研究方法，探讨了不同水肥调控技术措施对小麦生长发育过程中养分吸收、累积和转移等的效应，及其与干物质累积、水分利用效率等间的关系，并从土壤养分和水分的动态变化、根系生长和生理代谢指标的测定3个方面分析了其机理。

Inthe whole process, the oocytes, nurse cell and follicle cell morphology change. Inoocyte yolk formation and growth, the number of its nuclear trophoblast cell nucleoli,lamphrush chromosome with a strong synthetic material; oocytes also some syntheticmaterial; follicle cells in the yolk protein synthesis, provide access to exogenous yolkprotein.

在卵子发生的整个过程中，卵母细胞、滋养细胞及滤泡细胞形态均有明显变化；在卵母细胞生长及卵黄形成期，滋养细胞核内的多核仁现象、灯刷染色体与旺盛的物质合成有关；卵母细胞本身也合成一些物质；滤泡细胞参与卵黄蛋白的合成，并为外源性卵黄蛋白提供通道。

Important significance of regional tectonic regime to metallogenic capacity of Indosinian and Early Yanshanian granites in southeastern Hunan:A case study of Qianlishan and Wangxianling plutons;2. Yanshanian movement and conversion of tectonic regime s in East Asia;3. The Sm-Nd isotopic results indicate that the Archean tectonic regime and crust growth in Northern China Platform can be divided into two stages.

Sm－Nd同位素研究结果显示，华北地台太古宙构造体制与地壳生长可分为二个发展阶段：2800Ma以前，地壳以幔源物质垂向增生为主；进入2800Ma以后，地壳物质开始进入地幔，并以水平运动为主要构造体制，反映板块构造机制在太古宙晚期地质演化中具有十分重要的作用。

But some academician considers that phenols are not the cause of soil degradation, in contrast, some of phenols afford protection to the growth of plants.

而一些学者认为，酚类物质并不是引起地力衰退的主要原因，相反，某些酚类物质对植物的生长具有保护作用。

The root biomass increased with high N and K applications under well-watered condition, but did not increase under water deficit condition.

复水后抗旱型品种的生长速率和干物质相对增长率在均高于干旱敏感型品种，而根系的生长抑制率低于干旱敏感型品种。

The low rate (150 Mg kg/hm~2), the middle rate (300 Mg kg/hm~2) and the high rate (450 Mg kg/hm~2) were experimented to study the yield and qualities formation and growth of flue-cured tobacco under different magnesium fertilizer application.

2005年在湖南常宁市大田栽培条件下，以云烟87为供试验烤烟材料，采用漂浮育苗移栽，进行3次重复的随机区组试验，研究了在低镁水平(150kg/hm~2)、中镁水平(300kg/hm~2)和高镁水平(150kg/hm~2)三种不同施镁水平下，烤烟的生长发育、烤烟光合强度、蒸腾强度、烟株Mg~(2+)及干物质积累动态、产量、烟叶品质、经济性状和经济效益等烤烟生长发育的生理化学指标。

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。