除草剂

Acetanilide herbicides are widely used for preemergence control of broad-leaved weeds in corns, soybean and several other other crops.

酰胺类除草剂是目前应用广泛的芽前除草剂，主要用于大豆、谷物及其它几种阔叶草的优先控制。

Linear regression analysis showed that the product of Freundlich adsorption constants, Kf(1/n), had a positive correlation with 1/Sw and/Sw, showing that the adsorption of acetanilide herbicides on soil was mainly controlled by the content of soil organic matter and the solubility of herbicides.

四种酰胺类除草剂的 Freundlich 吸附常数 Kf(1/n)与1/Sw 、/Sw 有很好的线性相关性，这说明它们在土壤中的吸附主要受土壤有机质含量控制；分子中酰胺 N 的醚取代基的结构差异造成的溶解度差别，是导致不同酰胺类除草剂在土壤上吸附差别的主要原因。

The cowpea trypsin inhibitor gene and the bar gene discovered in recent years are found to be used for insect-resistant and anti -herbicide respectively because of their broad spectrum and are used in gene improvement of many crops widely now. Using the peanut Arachis hypogaea L. cv. Shanyou 523 and Arachis hypogaea L.

在多种抗植物虫害、耐除草剂基因中，豇豆蛋白酶抑制剂基因(cowpea trypsin inhibitor，CpTI)和耐除草剂基因因其抗虫和耐除草剂的广谱性而成为效果最为理想的外源基因，被广泛地应用于农作物抗虫、耐除草剂基因的改良上。

When single herbicide was used in the field for two years, the dominant species took place corresponding alternation. The community structure that originally mostly consisted of dicotyledonous weeds , such as Alopecurus aequalis sobol., etc.

通过连续几年的单一除草剂使用，烟田杂草的优势种群发生了相应变化，原来以看麦娘、马唐、稗草等单子叶杂草为主的群落结构演变成了现在以稗草、马唐及胜红蓟、两栖蓼、茴茴蒜为主的单、双子叶杂草混生结构，说明烟田施用除草剂会引起杂草群落结构变化，因此，在生产上则应注意除草剂的轮换使用。

Herbicide safener is an active ingredient to the target weeds and keep crops from the harm of herbicide selectively .

除草剂安全剂是一种能够选择性地保护农作物免遭除草剂的药害，但不降低除草剂对靶标杂草的活性的物质。

These single-copy transformants could be used for the culture of resistance-herbicide and also produce new variety through backcrossing and crossing.

这些材料可直接生产杭除草剂杂交种，也可作为抗除草剂的种质资源，通过杂交、回交等常规育种方法将抗除草剂Bar基因导入目标品种，获得具有抗除草剂特性的新品种。

Since genetic relationship between green foxtail from different region and foxtail millet resisted to herbicide is different, foxtail millet, which is relatively far away from green foxtail in local region as for genetic relationship, resist to herbicide is popularized in order to decrease the ecology risks.

由于不同地区的青狗尾草和抗除草剂谷子亲缘关系不同，可以推广与当地青狗尾草亲缘关系较远的抗除草剂谷子以减少抗除草剂谷子种植后的生态负效应。

This study also found an ideal way to identify green foxtail resisted to herbicide through watching shoots trait which was seed germinating four or five days on mediate with certain dose of herbicide.

可以通过观察种子在含一定剂量除草剂介质上发芽4天～5天后的形态特征来分辨抗、感除草剂种子，从而快速鉴定抗除草剂基因流。

As for the pesticide-resistant species you have mentioned, we can try to reduce the amount of weed killer used, but the idea of abandoning weed killer is unreasonable. Total abandonment will not benefit current ecological balance.

至于您提到的抗除草剂品种依然需要除草剂，那是当然，毕竟现在只能降低除草剂的使用，不能杜绝除草剂的使用，而且完全杜绝了也不好，不符合生态平衡的要求。

Breeding of transgenic rice restorer line for multiple resistance against bacterial blight, striped stem borer and herbicide(1) Transgenic rice line Zhongguo91 (carrying cry1Ab and bar gene) and elite restorer line Hui773 were crossed, then backcross was carried out three times using Hui773 as recurrent parent and self-cross was carried out one time.

多抗性(抗白叶枯、螟虫、除草剂)转基因水稻恢复系的培育(1)将恢773与携有转cry1Ab和bar基因的水稻新品系中国91(cry1Ab)杂交，并以恢773作为轮回亲本，连续回交三代和自交一代，对各回交世代的单株进行cry1Ab和bar基因的PCR分析、田间抗虫性鉴定和除草剂Basta抗性鉴定，经过选择获得了转基因水稻恢复系T773-1，田间种植对螟虫及除草剂Basta表现很好的抗性。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了