But so far, no one has found an insect-resistant cowpea or a Striga-resistant maize plant.
但到目前为止，还没有人找到一种抗虫害的豇豆或者抗杂草的玉米品种。
There is now unambiguous evidence that wherever genetically modified insect-resistant cotton and maize are grown, insecticide applications have been reduced-by up to 80%.
充分的证据表明，在种植抗虫转基因棉花和玉米的地区，杀虫剂的使用减少了80%。
The insect-resistant varieties make their own insecticide, a property meant to reduce the need for chemical sprays.
植入抗虫基因的作物会自行制造杀虫剂，因此可望减少化学药剂的喷洒。
Weakness: the pollution of the environment, killer predators, pests drug-resistant produce, cause secondary pests for the main insect pests rise.
缺点：污染环境，杀伤天敌，害虫抗药性产生，导致次要害虫上升为主要害虫。
The results of insect bioassay with peach aphid (Myzus persicae) showed that the transformed plants were aphid ? resistant evidenced by a 6 5.65% reduction in aphid population density.
虫试结果表明，转基因植株对蚜虫密度有明显的抑制作用，平均能抑制蚜虫密度为达65.65％。
It is suggested that virulence of rice brown planthopper was variable and the character of variety resistant or susceptible to insect was the exterior factor of virulent shift.
这表明褐飞虱的致害性是可变异的，水稻品种抗、感虫特性是其转化的诱因。
The research, experiment, and large scale extension of the insect - resistant cotton enlighten us a lot.
抗虫棉研究、试验、推广、大面积应用，给我们一定启示。
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。
At present, inbred lines of transgenic insect resistant maize with selective marker gene removed are in separating and inbreeding program assisted by DNA marker detection.
目前，正结合进行田间分离纯合和DNA分子鉴定，培育去除选择标记基因的转基因抗虫玉米自交系。
The insect-resistant genetic engineering provides a new and effective way of controlling tobacco pests.
抗虫基因工程为烟草害虫防治提供了一条新的有效途径。
An insect resistant maize plant produced by the method of claim 14.
用权利要求14的方法产生的抗虫玉米植株。
Breeding of insect resistant cotton with gene engineering is one of the popular field of cotton biotechnology that bring hope for the prevention and control of cotton pests.
抗虫转基因棉花的培育是近年来棉花生物技术研究的热点，它为棉杜虫害的防治展示了希望。
This article discussed the mechanism and influent factor of insect-resistant engineering with plant endophyte.
本文着重论述了内生菌的抗虫机制及其影响因素。
The isolation of the rhizosphere soil microorganism of transgenic 741 poplar containing two insect-resistant genes was studied with the gradient dilute method.
应用稀释平皿分离法对转双价抗虫基因741杨的根际土壤微生物进行了分离研究。
Well, the problem with this explanation is these healthy yellow cedars are generally much more resistant to insect infection than other tree species.
这个解释的问题在于黄杉相对于其他树种来说其实有更强的抵御害虫侵袭的能力。
Breeding and growing insect-resistant cultivars are the most economic and effective approach to control cotton insect pests.
培育和种植抗虫棉是控制棉花害虫最为经济、有效益的途径。
One stable line resistant to corn borer had been selected in the progeny of maize regenerated plants, further molecular test and feeding-insect test are going on.
玉米再生植株种植田间后在其后代中选出一抗玉米螟的稳定株系，尚需进一步的分子验证和饲虫实验。
Our galvanized insect screening enjoys good property of flexible, corrosion resistant, easy cleaning and keeping forms.
我厂生产的镀锌窗纱价格合理，具有韧性好、耐腐蚀、易清洁、不易变形等特性。
An analysis was given to the ingredient of five transgenic insect-resistant glandless cotton, which were named KW1, KW2, KW3, KW4 and KW5 by the Cotton Institute of Agriculture University of Hebei.
通过对河北农业大学棉花遗传育种室培育的转基因抗虫无色素腺体棉花新品系KW1、KW2、KW3、KW4、KW5的营养成份进行测定。
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。
It has a very strong resistant capability, especially to drought, salt, freezing, plant diseases and insect pests.
该属内植物对逆境具有较强的抗性，尤其是对于干旱、盐碱、高寒和病虫害等有较强的抵抗能力。
It is important to cultivate poplar that can resist insect. Transgenic technology has become main means to improve the quality of insect-resistant of present plant by creating new varieties.
利用转基因技术培育抗虫杨树新品种已成为当前植物遗传改良的重要手段。
It is important to cultivate poplar that can resist insect. Transgenosis technology has become main means to improve the quality of insect-resistant of present plant by creating new varieties.
利用转基因技术培育抗虫杨树新品种已成为当前植物遗传改良的重要手段。
To the hot days when with insect-resistant water, towel and straws. Days when cold remember to bring warm coat.
天热的时候需带防虫水，毛巾和吸管。天冷的时候记得带御寒外套。
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；
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。
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。
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