查询词典 pyrethrum

The extract of pyrethrum was extracted by soxhlet extraction from Chrysanthemum Cinerarioefolium Vis..

方法］用索氏提取法从白花除虫菊株系Chrysanthemum Cinerariaefolium Vis。

Based on the antifungal activity screening of endophytic fungi obtained from Pyrethrum cinerariifolium, the strain of Y1 with higher activity its active substances were separated.

在对从除虫菊中分离到的内生真菌进行抑菌活性系统筛选的基础上，对其中活性较高的Y1 （Pestalotiopsis sp。

In this paper,natural pyrethrum nano-capsule with a wall of the copolymer of styrene and methyl methactylate was prepared by means of microemulsion polymerization .

研究用微乳液聚合法制备以甲基丙烯酸甲酯和苯乙烯共聚体为囊壁，以天然除虫菊酯为囊芯的纳米胶囊。

The effect of ultrasound on the degradation of pyrethrins and the velocity of extraction are studied through the supercritical carbon dioxide extraction of pyrethrins from pyrethrum.

本文以除虫菊花中的除虫菊酯萃取为对象，研究用超临界CO2对其萃取时，施加超声场对萃取物降解及萃取速率的影响。

Based on the antifungal activity screening of endophytic fungi obtained from Pyrethrum cinerarifolium, the strain of Y2 with higher activity was primarily identified and its active substances were separated.

在对从除虫菊中分离到的内生真菌进行抑菌活性系统筛选的基础上，对其中活性较高的Y2菌株进行了初步的鉴定和活性物质的分离。

Coccineum, which are sources of the insecticide pyrethrum.

婆罗门参的根部可以食用，菊苣可以作为咖啡的替代品，莴苣，白花除虫菊以及红花除虫菊是很好的除虫剂的来源。

Plant tissue and cell culture of pyrethrum cinerariifolium Trev.

在活性追踪指导下，对除虫菊细胞培养物中活性物质生物合成进行研究，以为今后通过植物细胞培养途径产生除虫菊素提供实验室小试的理论依据，提高通过植物细胞培养途径产业化生产除虫菊素的经济和技术可行性。

This, Neway Securities analyst Huang Bo told reporters that if the issuance of the smooth passage, the red sun's pesticide rapid expansion of production capacity, at the same time will have to be fat pyrethrum, Pyridine alkali and glyphosate acid three complete industry chain platform, the formation of "intermediate - the original drugs - agents - sales channels," the overall advantage.

为此，新时代证券分析师黄百告诉记者，如果顺利通过发行，红太阳农药迅速扩大生产能力的同时，将必须脂肪除虫菊，吡啶碱和草甘膦酸三个完整的产业链平台，以"中间形成-了-代理商-销售渠道"的整体优势原来的药物。

Eleven of the populations were in Hardy-Weinberg equilibrium, whereas two strains had higher number of heterozygotes than expected, indicating a possible heterozygote advantage. The frequency of kdr was strongly correlated with the reduced mortality observed in the bioassays when treated with pyrethrum and bioresmethrin synergized by piperonyl butoxide.

Kdr基因频率与一定农药选择压力下的家蝇死亡率成反比，显示kdr是家蝇拟除虫菊酯抗性的主要因素。14个野生家蝇种群中，有5个种群对PYR／pho和BRM／pbo的抗性指数分别大于25和10，属高抗性家蝇种群。

The paper introduced the principle ,the test conditions and the operation steps of dry-ing the pyrethrum flower ;The four drying methods :drying the air flow ,far infrared ray ,sunsh-ing and vacuum were described ;The drying conditions ,the moisture of tile dry flower and extrac-tion.

本文主要介绍了除虫菊鲜花的真空冷冻干燥技术的原理、条件和操作步骤。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失