查询词典 insect-flower

Validate the activities of three plant matter to grain stored insect Sitophilus zeamais Motschusky and Rhizopertha dominica Fabricius.

研究结果如下： 1、验证三种植物性物质对仓储害虫玉米象、谷蠹的生物活性。

The effects of interspecific competition on the population dynamics of four insect grain Insecp pests (Sitophilus zeamais, Rhizopertha dominica, Tribolium castaneum and Cryptolestes ferrugineus) was studied at 30 ℃, 75％ relative humidity. A regression analysis of the population dynamics was conducted.

在30 ℃、75％相对湿度条件下研究种间竞争对玉米象、谷蠹、赤拟谷盗和锈赤扁谷盗4种主要储粮害虫种群动态的影响，并对种群动态进行回归分析。

Based on increasing resistance of stored grain insect pest to chemicals and decreasing fumigants, the effects of ethyl formate on eggs, early larvae, late larvae, pupae and adults of Sitophilus oryzae were systematically studied with the sealed jar fumigation method under different conditions.

针对储粮害虫抗药性日趋严重、粮食熏蒸剂品种越来越少的现状，采用密闭熏蒸法，系统研究甲酸乙酯在不同条件下对米象Sitophilusoryzae卵、低龄幼虫、高龄幼虫、蛹以及成虫的致死作用。

It is necessary to carry out a thorough study on pest control technology with DMDS, with an expectation of obtaining a new fumigant of methyl bromide alternative.2. Investigation of the toxicity of fumigation on adult and mixed stages of the three most tolerant insect species -- Sitophilus oryzae, Rhyzopertha dominica and Tribolium castaneum -- under a range of EtF、DMS and DMDS doses in a Flow-through Fumigation System shows that the FTFS procedure offers a constant concentration of fumigant with low CO2 concentrations and ensures that the fumigant toxicity is effectively not compromised by CO2. In comparison with chamber fumigation method, the toxicity data of EtF、DMS and DMDS obtained from this experiment is more accurate by using FTFS.

主要研究结果如下：1、甲酸乙酯和二甲基二硫对仓储害虫具有良好的控制作用，应加快甲酸乙酯替代溴甲烷防治仓储害虫开发应用，同时，二甲基二硫是很有潜力的仓储害虫防治熏蒸剂，要深入进行二甲基二硫控制有害生物的技术研究，以期获得新的溴甲烷替代熏蒸剂。2、利用循环熏蒸系统测定了甲酸乙酯、二甲基二硫和甲硫醚对米象Sitophilus oryzaeL。

In the practice it plays an important part in insect surveys, the choice of grain method, the improvement of grain storage level, the extension of storage time and the delay of grain quality deterioration. 1 Research on stored product insects in large warehouse 1.1 Community composition and structure analysis of stored product insects in large warehouse By means of GJ89 type probe trap investigation of stored grain insects and analysis of community composition and structure of large warehouse were carried out in Chongqing Beibei State Grain Reserve Depot. The results showed that there were main Lipocelis botrychophilus、 Cryptolestes ferrugineus、 Tyrophagus putrescentiae and Sitophilus zeamais etc in large warehouse

高大平房仓储粮昆虫生态学研究 1.1 高大平房仓散装储粮昆虫群落组成及结构分析使用GJ89型粮虫陷阱检测器对中央储备粮重庆北碚直属库高大平房仓储粮昆虫进行系统调查，并对其群落组成及结构进行了分析，结果表明高大平房仓储粮昆虫主要有书虱Lipocelis botrychophilus、锈赤扁谷盗Cryptolestes ferrugineus、腐食酪螨Tyrophagus putrescentiae和玉米象Sitophilus zeamais等4类，其中书虱为绝对优势种群；在粮堆垂直方向0～50cm 4类昆虫发生最多，100～150cm发生最少；4类昆虫在粮面0～50cm丰富度、优势度、多样性及均匀度4项指标均高于50～100cm和100～150cm，水平方向6个区域各项指标差异不大。

Effects of the invasive plant Spartina alterniflora on insect diversity in Jiuduansha wetlands in the Yangtze River Estuary

性质：一组样本测定值的平均值。分为简单平均值即算术平均值和加权算术平均值。

For a reliable diagnosis of plant diseases and insect pests,spectroscopy analysis technique and mutispectral imaging technique are proposed to diagnose five cucumber diseases,namely Trichothecium roseum,Sphaerotheca fuliginea,Cladosporium cucumerinum,Corynespora cassiicola and Pseudoperonospora cubensis.

为了实现可靠的植物病虫害诊断，文章提出把光谱分析技术和多光谱成像技术相结合的方法用于常见的红粉、黑星、白粉、褐斑和霜霉五种黄瓜病害的识别研究。

One of the stubby limbs on the abdominal segments of caterpillars and certain other insect larvae .

原尾幼虫假叶目及一些其他绦虫的实体第一寄生虫，通常在桡足类的体腔中发育

To establish regenration technique system for gene transformation in supersweet corn, and to obtain germplasm resources for insect resistance, the factors influencing plant regeneration were studied.

为了通过对影响超甜玉米再生因素的研究，建立超甜玉米转基因再生技术体系，获得抗虫资源。

In this study, based on establishment of stable and high efficient transfergenic receptor system with supersweet maize callus, the multiple insect-resistant genes were successfully co-transformed into a elite inbred line 1132 and a variety using particle bombardment and overy microinjection, and the transgenic integration, expression and inheritance were studied by means of target character and molecular biology method.

本研究在建立高效稳定基因转化受体系统的基础上，利用基因枪和子房注射两种方法将多个抗虫基因成功转化抗性较差的超甜玉米自交系及其品种，并从分子水平和目标性状上研究外源基因的转入、整合、表达与遗传规律。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。