胚根

Using parameters of states and coefficient, we simulated the branching process of young maize radicel and illustrated the simulation results by visualization method.

利用获取的状态分布函数与分支系数，以单位根段长(10mm)为模拟步长，采用随机模拟的方法，生成的玉米胚根的形态结构数据，最后将其可视化。

Both root and root cap are covered by a sheath-like structure called the coleorhiza.

根和根冠被一鞘状结构，即胚根鞘所覆盖。

The results showed that the seed germination percent decreased both in benzoic acid and ρ-hydroxybenzoic acid seed soaking treatments and the growth of hypocotyls and radicles in the seed-bud soaking treatments were inhibited significantly.

结果表明，苯甲酸、对-羟基苯甲酸浸种处理使西瓜种子发芽率显著降低；浸芽处理使西瓜种芽的胚轴、胚根生长受到显著抑制。

The callus induction of licorices was easy. And the MS+1.0 mg/L NAA+1.0 mg/L 2, 4-D +1.0 mg/L 6-BA was the best medium to cotyledons, hypocotyls and radicles. And all the induction rates were 100%. 4. In the study of callus regeneration, only obtain the regeneration plants of hypocotyls callus,and its frequency was 4.57%.

甘草离体再生中愈伤组织的诱导较为容易，三种外植体子叶、下胚轴和胚根均以MS+1.0 mg/L NAA+1.0 mg/L 2，4-D+1.0 mg/L 6-BA为愈伤组织诱导的最佳培养基，在此培养基上，3种外植体愈伤组织诱导率均达到100%。

Seeds linear-oblong, not beaked, coma silky white; endosperm copious; cotyledons linear, flat, radicle short.

种子线状长圆形，不发，种缨绢状白色；胚乳丰富线形，平的子叶，胚根短。

Seeds usually 1, ovate-oblong; endosperm fleshy; radicle erect.

通常的种子1，卵状长圆形；胚乳肉质；胚根直立。

RT-PCR analysis revealed higher expression levels of GmRLCK in soybean cotyledons,roots,flowers and young pods;whereas lower expression levels were detected in radicles,stems and mature leaves at vegetative stage.

RT-PCR的结果表明，GmRLCK在大豆子叶、根、花以及豆荚中都有较高的表达，而在胚根、茎和成熟叶片中的表达相对较弱。

It was found that the highest PAO activities in embryonic axes and radicles of the peanut seedlings occurred in day 4 and day 5 respectively after germination in dark. Additionally, the extraction medium of peanut PAO was 0.1 mol/L phosphate-buffered saline （pH 7.0）, containing 0.5 mol/L NaCl and 1 % polyvinylpyrrolidone.

结果表明：黑暗条件下萌发的花生幼苗，其胚根和胚轴的PAO活性分别在萌发后的第4 d和第5 d出现一个峰值；含1 % PVP和0.5 M NaCl的磷酸缓冲液（0.1 mol/L，pH 7.0）用作花生PAO分离提取液可得到较好的提取效果。

It was found that the highest PAO activities in embryonic axes and radicles of the peanut seedlings occurred in day 4 and day 5 respectively after germination in dark. Additionally, the extraction medium of peanut PAO was 0.1 molL phosphate-buffered saline （pH 7.0）, containing 0.5 molL NaCl and 1 % polyvinylpyrrolidone.

结果表明：黑暗条件下萌发的花生幼苗，其胚根和胚轴的PAO活性分别在萌发后的第4 d和第5 d出现一个峰值；含1 % PVP和0.5 M NaCl的磷酸缓冲液（0.1 molL，pH 7.0）用作花生PAO分离提取液可得到较好的提取效果。

Winter wheat varieties were used as materials, their coleoptile length, seedling length and main radicle length of wheat seedlings were investigated under different concentrations of PEG-6000 osmotic solution simulated drought stress, and their relations with the yield components and drought tolerance under rainfed and rainout shelters were further analyzed.

以6个抗旱性不同的冬小麦品种为材料，通过不同浓度的PEC-6000渗透溶液模拟干旱胁迫处理，研究了小麦苗期的胚芽鞘长度、苗高、主胚根长等性状，并与其在大田及防雨棚控水条件下的产量构成和抗旱性的关系进行分析。

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。