Scientists have made genetic modifications to cotton to increase its resistance to insect pests.
科学家对棉花进行了基因改造，以增强其对害虫的抵抗力。
This provided good corn germplasms for our breeding research on resistance to insect pests.
为我国抗病虫育种提供了较好的种质资源。
Therefore people have to study the pest resistance, and insect pests resistance to insecticides is the most active study in this area.
为此，人们不得不进行有害生物抗药性的研究，而害虫抗药性的研究则一直是有害生物抗药性研究中最活跃的领域。
Wood extractives can reduce the shrinkage and recovery of wood during drying, enhance the dimensional stability of wood, and contribute to resistance to insect and fungal attack.
木材浸出物能减少木材的干缩，增强木材的尺度稳定性，并赋予木材抵抗病虫侵害的能力。
The gerplasm of rice from INGER in Guangdong take an important contribution in raising the level of studies on resistance to insect pest and disease, rice breeding and gerplasm utilization.
通过INGER试验引进的水稻种质资源对丰富广东水稻育种的遗传背景，提高广东省水稻抗病虫性研究和抗病虫育种水平以及种质研究利用水平具有重要意义。
The problems and obstacles remained in the research and utilization of resistant rice varieties to insect pests and the prospects of varietal resistance to insect pests in rice were discussed.
还讨论了水稻抗虫品种的研究与应用中仍然存在的难题和障碍，并展望其发展前景。
Insect resistance to Bt would do irreparable harm, not just to genetically modified crops, but to organic crops as well, because Bt sprays would be rendered useless.
而Bt抗性也会产生不可取代的危害，不仅是对于基因改良作物，还有那些需要用Bt喷雾来抗虫的作物。
To date, crops have been engineered for herbicide tolerance, insect and virus resistance and post-harvest quality.
迄今为止，已经针对农作物的耐除草剂、抗虫和抗病毒的特性以及采后品质进行了基因操作。
The comprehensive analysis reveals that there is a quite high and potential resistance risk of insect and mite pests to avermectins.
综合分析发现害虫和螨对阿维菌素存在较大的、潜在抗性风险。
Improving maize resistance to corn borer is an economical and effective technique to reduce the yield loss caused by insect damage.
提高玉米自身的抗螟性以减轻虫害损失是一项经济、有效的方法。
By analyzing the loci linked to drought tolerance, disease resistance, insect resistance and yield traits, etc, the identification and cloning of related genes is possible.
在解析与优良基因连锁的甲基化位点的基础上，分析一些重要性状如抗旱、抗病、抗虫及产量等性状，并对其基因进行定位，使鉴定和克隆相关基因成为可能。
Leaf-feeding resistance to this insect is conditioned by increasing tissue concentrations of benzoxazolinones and their precursor hydroxamic acids.
对这种害虫取食叶片的抗性决定于组织中苯并邅唑啉酮及其前体氧、肟酸浓度的增加。
These growing wild species express the characteristics of stress tolerance, resistance to disease and pest insect, high quality under the severe competition and selection of nature.
这些野生种在自然界的严酷竞争和自然选择条件下形成了许多优良特征特性，特别表现在抗逆性、抗病虫害、品质等方面。
Thus, CMS lines are needed to improve insect pest resistance in hybrid rice.
因此，杂交稻抗虫性的提高有赖于不育系的改良。
In considering chemical resistance, it is not enough to grind up the entire plant and look for allomones against insect pests.
在研究化学抗性时，研碎全株并寻找抗虫的利已激素是不够的。
International travel, immigration, changes in pest control practices and insecticide resistance may have contributed to a recent resurgence of this blood-sucking insect in developed countries.
国际旅游、移民、虫害防治手段的改变以及杀虫剂不再有效，这都会导致近些年在发达国家这种吸血昆虫的肆虐。
Therefore, according to the performance of agronomic and yield characters and the resistance to disease and insect pests, BN4 showed the best, followed by BN8 and BN10.
因此，综合各品系的农艺性状和产量性状、抗病性和抗虫性，以BN4的表现较好，其次是BN8和BN10。
Tang ZH, Wu SX, 2000. Heredity and Evolution of Insect Resistance to Pesticides. Shanghai: Shanghai Scientific and Technical Literature Publishing House.
唐振华，吴士雄，2000。昆虫抗药性的遗传与进化。上海科学技术文献出版社。
High resistance to corrosion resistant black disease, broccoli verticillium wilt, insect resistance of good.
高耐黑腐病，抗甘蓝黄萎病，抗虫性好。
Polyploid watermelon has many virtues such as seedless, high yield, good tolerance and transportation, high resistance to plant diseases and insect pests, and also high central soluble solids content.
多倍体西瓜具有少籽、丰产、耐贮、对病虫害抗性较强、抗逆性好、果实含糖量高等优点。
However, these indexes might have to achieve a certain level (threshold) so that the single insect-resistant role in the resistance targets would be remarkable.
然而这些物质的含量要达到一定的水平(临界点)后单个抗性指标的抗虫作用才会明显。
To date, insect resistance has been provided by a gene from the soil bacterium Bacillus thuringiensis (Bt).
目前，抗虫害的特性是取自土壤中杆菌苏力菌（Bacillus s thuringiensis，下文简称Bt）的一个基因。
The result showed that: 1. These transgenic insect-resistant cotton after introducing different exogenous gene have different resistance to boll-worm because of distinct killing mechanism;
研究结果表明：1导入不同外源基因的转基因抗虫棉因其杀虫机理不同而对棉铃虫抗性存在差异；
The result showed that: 1. These transgenic insect-resistant cotton after introducing different exogenous gene have different resistance to boll-worm because of distinct killing mechanism;
研究结果表明：1导入不同外源基因的转基因抗虫棉因其杀虫机理不同而对棉铃虫抗性存在差异；
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