根的生长

The root biomass, stem biomass and total biomass of seedling in gap center plots were ratherish higher than those of seedling in gap middle plots, but the difference was not evident.

经过一个生长季后，林窗中心样地中幼苗的根生物量、茎生物量和总生物量均略高于林窗中部样地的幼苗，但差异并不显著。

Methods To determine the content difference of main secondary metabolites from 3 different provenances roots of Rumex gmelini planted in the same growth condition by HPLC.

通过HPLC法检测同一生长条件下的3种不同种源毛脉酸模根中主要次生代谢产物的含量动态变化规律。

Many studies have revealed that apoptosis is an important and normal part in plant embryo development, tracheary element formation and development of root, shoot, leaf, flower.

大量研究表明，细胞凋亡是植物胚胎发育，导管分子的形成，根、茎、叶、花等器官正常生长发育的重要组成部分。

Seedlings of Trapa pseudoincisan, a typical floating-leaved macrophyte accumulated more biomass after exposing 30 days in high CO,, and the biomass advantage was due to dry weight increase in root, stem, leaf and petiole.

高co：浓度中生长30天的菱幼苗总生物量明显增加，这是根、茎、叶和叶柄干重均增加的结果。

In order to investigate the adaptability mechanism of Ulmus pumila in saline environment distribution characteristics of potassium, sodium, and calcium ions in new leaves, old leaves, new branches and root regetative, of U. pumila under high, low and non-salinity soil were studied.

为了探明白榆适应盐碱环境的机理，以高盐、中低盐、非盐碱3个土壤盐分立地条件下生长的白榆为试验材料，研究不同盐分浓度下新叶、老叶、新枝、老枝和根5个营养器官中4种金属盐离子分布特征。

Moreover, host plant can also affect the growth and development of AM fungi, and produce different infection rate、spore-bearing rate and mycorrhiza effect.

宿主植物也影响着AM真菌生长和发育，不同的宿主植物会影响AM真菌的侵染率、产孢量以及菌根效应。

Remember that the normal procedure of rooting succulents is what adeniums has described.

记住adeniums所提的多肉植物正常长根程序，又，保持土壤高温是让根部生长必须要具备的条件。

Truffles grow underground among the roots of oak, elm, chestnut, pine, and willow trees where they form a symbiotic relationship with their environment.

块菌生长在地下土层中，与橡树、榆树、栗树、松树及柳树的根以及它们所处的自然环境形成共生关系。

The results showed that the segments irradiated at the dose of 30 and 50 Gy could survive,but couldn't form new rhizomes and the growth was almost stagnated.

结果表明：辐照剂量为30和50 Gy处理的根状茎虽能存活，但未有新生根状茎的发生，生长停滞。

When Mg(superscript 2+) concentration increased, the fresh weight and dry weight of maize sad soybean decreased ,but they both showed some adaptability The growth of radicles and seedlings in maize and soybean were obviously inhibited by Mg(superscript 2+) and atrophy and dysplasia phenomena appeared.

随着Mg(上标 2+)浓度升高，玉米和大豆的鲜重和干重降低，但均表现出一定的适应性。玉米和大豆幼根和幼苗生长受Mg(上标 2+)抑制明显，普遍表现出萎缩、发育不良现象。

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。