根的生长

The results showed that the strongest inhibitory activity of Cercospora zeae-maydis toxins were obtained with polar solvent when it was statically cultured in the Fries nutrient fluid for 15ds.

结果表明，Fries培养液中静止培养15d，用极性溶剂提取的玉米灰斑病菌毒素生物活性最好，毒素对玉米胚根生长的抑制作用明显。

In order to research the influnce of provenances of Cunninghamia lanceolata on koryotype, seeds are collected from 20 different provenances , they are kept on the damp filters under the condition of 25℃ for germinating till their roots grow to 0.5cm in length.

为研究杉木地理种源对杉木核型的影响，将20个杉木产区的种子在25℃条件下发芽，当根生长到5厘米时，用8-羟基喹啉预处理，压片观察。

Roridula dentata grows much faster and has even at seedling stage a very long root which is penetrating deep into the soil.

Roridula dentata生长速度更快，在幼苗期就会长出很长的根深深的扎在泥土里。

There are 23 species and 3 varieties Orobanche plants in China,most of which are distributed over north,northwest and northeast.The compounds of Orobanche were reported at phenylethanoid glycosides such as acteoside and isoacteoside,and acteoside has significantly protective againstα-galactose induced hepatic injury,which is better than Biphenyl dicarboxylate.

第一部分紫花列当化学成分及生物活性研究紫花列当Orobanche coerulescens Steph为列当科列当属二年生或多年生寄生草本植物，性温、味甘，生长于沙丘、干草原、砾石沙地和戈壁之中，寄生在菊科蒿属植物的根上，具有补肾、强筋之功效，用于肾虚、腰膝冷痛、阳痿遗精和神经官能症等疾病的治疗。

Furthermore, the determination method of alkaloids is discussed. Results show the total alkaloids contents in crease with Wu-He Dipsacus growing longer years.

结果表明：随着生长年限的增加，其根中总生物碱的质量分数积累呈现出递增趋势。

Progress in the study of the influences of light, water, herbivory and fungal symbiont on the growth and survival of Dipterocarpaceae seedlings is briefly summarized, and the prospects in the future are also discussed.

就光照、水分、动物捕食和菌根共生体对龙脑香科植物幼苗生长与死亡的影响进行了简要综述，并对未来研究的发展方向作一展望。

As the result showed: Compared to American Ginsengs growing in different years, the result showed that the amount of edaphon in American Ginsengs' rhizosphere became larger and the soil physcial and chemical properties changed in different degree .

结果显示：通过对不同生长年限的比较，西洋参根际土壤微生物有总体水平看，均有所增长，土壤理化性质也有不同程度的改变。

Rodent incisors are known to be continuously growing teeth that are maintained by both the cell-proliferation at the apical end and the attrition of the incisal edge.

啮齿动物的切牙终生不断生长，其高度通过切端磨损及根尖末端的细胞增殖来维持。

For 3 years we studied 4 Medicago sativa cultivars (CW200, Pondus, Grandeur and Victoria), whose fall dormancies are 2, 3, 4, and 6, respectively.

对秋眠级数分别为2，3，4和6的休眠和半休眠苜蓿品种生长前3年的根颈特性进行了连续研究。

Any of various parasitic herbs of the genus Orobanche, having purplish or yellowish flowers and small scalelike leaves that lack chlorophyll.

列当属植物一种列当属寄生草，开紫色或黄色花、长有不含叶绿素的鳞状小叶，列当属植物生长在各种植物的根上

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。