根的生长

The effect of growth and oil degradation rate varied with species of plant when inoculated ECM fungi combined with specific bacteria or fungi, but both decreased compare with single inoculation when combined with azotobacter.

外生菌根真菌与专性降解菌联合接种对植物生长的促进作用及对矿物油的降解效果因植物而异，与固氮菌联合接种则抑制植物生长，降解效果低于单独接种。

Any of various Eurasian tendril-bearing vines of the genus Bryonia, having red or black berries and tuberous roots formerly used as medicine.

泻根生长在欧亚大陆，生有卷须的泻根属的藤类植物，结红色或黑色果实，其块根原用作药物

More valuable is tea tree root, and camphor tree root growth underground staggered so that there camphor aroma of tea.

更可贵的是普洱茶树的根，与樟树根在地底下交错生长，使茶叶有了樟树香气。

4DRG was co-culture with sciatic nerve segment in 10鸖 DMEM;the axons were longer and surround the sciatic nerve segment which was regard as anew evidence for chemotropism.

结果：(1)在无血清条件下单独培养的DRG，背根神经节的轴突数目众多，外形纤细弯曲，不成束，并且施万细胞和成纤维细胞稀少，所以可以排除两者对轴突生长的影响，为观察来源于变性坐骨神经段的可溶性因子对轴突生长的作用提供了有利条件；(2)在无血清条件下DRG和变性坐骨神经段联合培养，①先单独培养DRG，4天后待神经元轴突长出，再与坐骨神经段联合培养，观察到神经元的轴突数目减少，外形挺直，部分轴突之间相互粘附成束；②变性坐骨神经段和DRG同时联合培养，神经元的轴突数目明显减少，外形粗壮，轴突之间相互粘附成束；(3)有血清条件下单独培养DRG，轴突数目较多，外形挺直，长短不一，部分神经元的轴突之间相互粘附，施万细胞和成纤维细胞数目众多，观察到的轴突生长情况受到施万细胞和成纤维细胞的直接或者间接的影响。

But good in low salt soil (.43 %),compared with their perennial, the salt-tolerant adaptability of Halocnemum strobilaceum and Kalidium foliatum seedlings is weak.

盐节木和盐爪爪幼苗的根长与土壤含盐量相关显著，两种植物幼苗在高盐下生长不良，在土壤全盐小于0.46%生长良好，远较其多年生植株耐盐能力小。

Conclusion］There are the same correct effectiveness and the biomechanical stability in the treatment with the slidable pedicle screw system and universal pedicle screw system,meanwhile there is no effect in the adolescent growth.

结论］滑动椎弓根钉系统治疗脊柱侧凸同样能够达到通用椎弓根钉系统相同的矫形效果及生物力学稳定性，同时它不影响青少年生长发育。

With the Sand culture method, influences of different magnesium levels (0%、50%、100%、150%、200% and 300%) was explored to the wheat seedlings of different stages. Many targets such as plant height, root length, biomass, content of chlorophyll, activity of root, RGY, RGR and ratio of root to crown of the wheat were mensurated at the time of 7d, 15d and 30d of two leaves stage of wheat seedlings after their endosperms were removed at different magnesium levels.The results showed that different magnesium levels had unlike influences over the wheat seedlings.

以小麦为试材，采用砂基培养的方法，在镁浓度分别为对照组的0%、50%、100%、150%、200%和300%的营养基质上，培养剔除胚乳后的二叶期小麦幼苗7d、15d及30d，并分别测定该3个时间段小麦幼苗的株高、根长、地上部和地下部的生物量、叶绿素含量、根系活力以及相对生长速度、相对生长速率和根冠比等指标，研究不同供镁水平对不同时期小麦幼苗生长速率的影响。

In the present study a solution culture method was developed to test the effects of mycorrhiza formation on organic acids.

本试验改固体培养基为营养液培养基，采用静止的培养方法，在培养四个月时发现，萌发孢子的菌丝生长良好，菌丝已经侵染了根段，形成了根内菌丝，同时也观察到大量辅助细胞的存在；培养六个月后，形成了成熟的新孢子，说明营养液静止培养菌根共生联合体的方法是成功的。

On the other hand, a deep-rooted, low-tillering variety has a well-spaced, lateral root distribution and its roots grow more actively in deep soils than those of a shallow-rooted, high-tillering variety.

另一方面，深根、低分蘖品种根系分布间距适当、侧向生长、深层土壤中的根系比浅根、高分蘖品种活力更强。

The catch-mark-release method was used in field works for three years (1980-1982), the net production of the root vole population was estimated with individual turnover rate , reproductive growth production and growth survival curve on two plots.

野外工作采用标志重捕法，利用个体周转率、繁殖—生长生产量和生长—存活曲线估算了两块样地上根田鼠种群1980—1982年3年间的生产量。

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。