根的生长

The objective of this work was to study the effects of N and P supply to various root volumes on pepper seedling development and growth in the nursery, and fruit yield and harvest earliness in the field.

这项工作的目标是研究氮和磷供应充足时，在苗圃里各种不同体积的根在辣椒幼苗生长发育，和果实产量和收获提前的影响。

Root exudates could play an important role in information transfer between plant and their growth media, and they have great effects on nutrition absorption in rhizosphere.

根系分泌物在植物与其生长介质的信息传递及根际营养过程中起着重要的作用，也具有重要的生态学意义。

To find a method to prevent algal blooms,the degradation of growing Microcystis aeruginosa and Planktothrix mougeotii by several predacious microanimals (Trithigmostoma cucullulus,Philodina erythrophthalma,Aeolosoma hemprichi,Moina macrocopa and Monas guttula)and the effect of microanimals by ring-lace were studied using a large scale lake simulator.

为了探索治理蓝藻水华的方法，利用大型湖泊模拟装置，研究了几种捕食性微小动物(僧帽触口虫、红眼轮虫、红斑飘体虫、多刺裸腹溞以及点滴虫等)对铜绿微囊藻及孟氏浮游蓝丝藻生长的抑制作用以及人造根对微小动物的作用。

Christmas trees are another important agricultural product, and Michigan forests produce large quantities of pulpwood products.

圣诞树是另一个重要的农产品，而密西根境内的森林则生长数量庞大的纸浆用树木。

British Museum's design is a roofless open park pavilion core "seed sanctuary" outside the root growth of six thousand tentacles stretching in all directions.

英国馆的设计是一个没有屋顶的开放式公园，展区核心"种子圣殿"外部生长有六万余根向各个方向伸展的触须。

The protection of animals at the national level karst rocks are semi-arboreal semi-tropical migratory animals, mild, beautiful patterns, they grew up in Rock Hill during the day on a variety of plant leaves, roots, stems, fruits for food, at night on the habitat the caves and on cliffs between stones.

国家一级保护动物白头叶猴是半树栖半岩栖热带动物，性情温和，形态优美，它们白天以生长在石山上的多种植物的叶、根、茎、果实为食物，夜间就栖息在悬崖上的岩洞和石缝间。

And the development and formation of the sieve tube elements of the different cultivars were influenced by the different levels of B: the sieve tube elements of the two cultivars were not formed at the level of 0.001mg/L; At the level of 0.01mg/L, the sieve tube elements of the high efficiency (Qingyou 10) cultivar could be formed, but the structure of the sieve tube elements was not complete, and the abruption and differenciation of the sieve tube elements of the low efficiency cultivar were inhibited, they were not formed; At the level of 0.01mg/L, the sieve tube elements of the two cultivars were formed.

不同硼水平下，不同硼效率甘蓝型油菜品种根尖筛管分子的发育与形成受到影响：硼浓度为0.001mg／L时，两个油菜品种都不能形成筛管分子；硼浓度为0.01mg／L时，硼高效品种青油10号筛管分子可以形成，但结构受到破坏，而硼低效品种Bakow筛管分子的分裂与分化受阻，几乎不可能形成成熟的筛管分子；硼浓度为0.5 mg／L时，两个油菜品种都能正常生长发育。

Methods: NGF was prepared from mouse submaxillary glands by the way of elution with CM 52 column. The molecular weight and purification of NGF were detected by SDS-PAGE polyacrylamide gel electrophoresis.

以小鼠领下腺为原料，採用CM52多次洗脱的力法分离神经生长因子，SDS-PAGE电泳检测NGF的分子品质和纯度，採用鸡胚背根神经节培养方法检测NGF的生物活性。

The experiments were carried out to study the efficiency of sod-culture and AMF infecting to early pear, the results indicated as follows: Experiment 1 Study on the effects of sod-culture on the environments of early pear orchard By field experiment, the effects of seeding Trifolium repen L.

本论文从生草栽培和菌根效应对早熟梨生长的影响入手，作了以下研究：试验1 生草对早熟梨果园微环境的影响通过田间试验研究了单独播种白三叶草、黑麦草和混播白三叶草与黑麦草对早熟梨园微生态环境的影响。

A dynamic simulation model for growth of root and shoot of winter wheat is established on the base of above mentioned experiments.

在试验的基础上，本文建立了土壤含水量变动条件下的冬小麦根、冠生长的动态模型。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。