种子的

In order to increase germination ratio of the seeds,enhance stress-resistance of seedling,accelerate popularization of variety,improve quality of turf,this experiment adopted chitosan of different concentrations to deal with the Dichondra repens Forst.seeds and carried out the sprouting and planting test.

为了提高马蹄金种子的发芽率，增强植株的抗逆性，加速品种推广，改善草坪质量，采用不同浓度壳聚糖溶液处理马蹄金种子并进行萌发和栽培试验。

In order to increase germination ratio of the seeds, enhance stress-resistance of seedling, accelerate popularization of variety, improve quality of turf, this experiment adopted chitosan of different concentrations to deal with the Dichondra repens Forst.

为了提高马蹄金种子的发芽率，增强植株的抗逆性，加速品种推广，改善草坪质量，采用不同浓度壳聚糖溶液处理马蹄金种子并进行萌发和栽培试验。

The results showed that 0.5g/L petroleum ether extract promoted the germination rate of lettuce; 1, 2, 4, 8 and 16g/L petroleum ether extract had inhibitory effect upon the germination rate, root growth and seedling height of the three plant acceptors.

结果表明，0.5g/L提取物对莴苣种子的发芽率有轻微的促进作用，1，2，4，8和16g/L子提取物对3种受体种子发芽率、幼苗苗高和根系生长均有抑制作用。

Hila 1.A scar on the testa of a seed marking the point at which it was attached to the ovary wall by the funicle.

种脐：1是种子的外种皮上保留的一个痕迹，显示种子与子房壁在此处靠珠柄连接。

Seeds that were dried to 8.6% of moisture content could be survived at -20℃ for 42 months without loss of germinability. Thus, seeds of M.

研究结果推论，杨梅种子的休眠解除，除了需要ABA含量的降低外，在种子发芽时更需要GA4和/或GA1参与。

Result The results showed that the glume of Johnsongrass had physical obstructing and chemical inhibiting effects on seed germination, and it was the major cause of seed dormancy.

颖片对假高粱种子的萌发具有物理阻碍和化学抑制作用，是导致其种子休眠的主要原因。

But Lespedeza davurica increased only from 8% to 50%.The effect in hot water condition is indistinctive.

热水处理方法破除种子硬实的效果不佳，赤霉素处理对种子的发芽率几乎无影响。

Seed of Podophyllum hexandrum Royle has the physiological characteristics of long dormancy and low germination in natural conditions. In order to investigate the characteristic of dormancy and find the mechanism of dormancy and the optimal method for breaking the dormancy of P.hexandrum seed, some methods such as isolated embryo cultures, biological identification, soaking seed in GA3, interaction GA3 and cold stratification were utilized.

摘要桃儿七种子在自然条件下具有休眠期长、萌发不良的生理特性，为了探讨和研究桃儿七种子的休眠特性，利用分离胚培养、生物鉴定法、GA3浸种、以及综合利用GA3和低温层积处理等方法。

Seeds 1 or 2 per valve, cylindric or quadrangular, reticulate or pitted; hilum at adjoining end of 2 seeds.

每裂爿种子1或2，圆筒状或四棱的，网状或具洼点；种脐连在2种子的末端。

The factors to effect germination rate and seedling conversion rate of C. appendiculata synthetic seeds, such as synthetic coating materials, synthetic endosperm components, storing conditions and germination materials, etc. were studied.

以杜鹃兰为实验材料，通过液体悬浮培养建立原球茎悬浮系，并以原球茎为人工种子的繁殖体，研究了人工种皮基质、人工胚乳组分、贮藏条件、萌发基质等对人工种子萌发率和成苗率的影响。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。