通过温室盆栽法及对谷胱甘肽转移酶活性的测定了研究了安全剂cyprosulfamide对烟嘧磺隆的解毒作用,并对其解毒机理进行了初步探讨。试验结果表明:对30、60、90 g a.i./hm2烟嘧磺隆处理的解毒效果最好的cyprosulfamide添加比例分别为1∶...通过温室盆栽法及对谷胱甘肽转移酶活性的测定了研究了安全剂cyprosulfamide对烟嘧磺隆的解毒作用,并对其解毒机理进行了初步探讨。试验结果表明:对30、60、90 g a.i./hm2烟嘧磺隆处理的解毒效果最好的cyprosulfamide添加比例分别为1∶0.2、1∶1、1∶5;在30、60、90 g a.i./hm2烟嘧磺隆处理中分别添加1∶0.2、1∶1、1∶5的cyprosulfamide后,对玉米株高的抑制率分别降低4.42、3.84、19.32百分点,对玉米鲜重的抑制率分别降低11.05、11.32、29.18百分点,而玉米中的谷胱甘肽转移酶活性分别增加34.4%、29.7%、31.8%。研究结果表明,添加安全剂cyprosulfamide提高了烟嘧磺隆处理后玉米幼苗中谷胱甘肽转移酶的活性,降低了烟嘧磺隆对玉米生长的抑制作用,总体上减轻了烟嘧磺隆对玉米的伤害。展开更多
[目的]研究环丙磺酰胺、双苯噁唑酸和解草酯对郑单958、登海605、金彩糯628和自甜糯玉米烟嘧磺隆药害的解毒效果。[方法]大田条件下,于玉米6~7叶期喷施3种安全剂与烟嘧磺隆的组合,20 d后测定株高和叶数,玉米收获期测产。[结果]添加环丙...[目的]研究环丙磺酰胺、双苯噁唑酸和解草酯对郑单958、登海605、金彩糯628和自甜糯玉米烟嘧磺隆药害的解毒效果。[方法]大田条件下,于玉米6~7叶期喷施3种安全剂与烟嘧磺隆的组合,20 d后测定株高和叶数,玉米收获期测产。[结果]添加环丙磺酰胺或双苯噁唑酸的处理玉米株高、叶数和产量均高于单施同剂量的烟嘧磺隆处理;而在烟嘧磺隆高剂量(120、240 g a.i./hm^2)处理时添加解草酯可能会使玉米株高、叶数和产量进一步降低。[结论]环丙磺酰胺或双苯噁唑酸可有效缓解玉米烟嘧磺隆药害,解草酯则不能。展开更多
Safeners are an important tool used to ensure the safe using of herbicide. This research was conducted to determine the effects of nicosulfuron alone and in combination with herbicide safeners on waxy maize （Zea mays...Safeners are an important tool used to ensure the safe using of herbicide. This research was conducted to determine the effects of nicosulfuron alone and in combination with herbicide safeners on waxy maize （Zea mays L. var. ceratina Kulesh） injury, as well as on barnyard grass （Echinochioa crus-galli） and large crabgrass control （Digitaria sanguinalis L. Scop）. Whole-plant experiments were conducted under laboratory condition, by using post emergence treatment with safeners and nicosulfuron. The results showed that the herbicide safeners isoxadifen-ethyl （IE） and cyprosulfamide （CS） were more effective in reducing waxy maize injury from nicosulfuron than fenchlorazole-ethyl （FE）, cloquintocet-mexyl （CM） and mefenpyr-diethyl （MD）. Whole-plant dose-response experiments showed that nicosulfuron in combination with IE or CS increased its herbicidal activities against barnyard grass and large crabgrass. To confirm the result, a mixture of IE or CS and nicosulfuron were sprayed on waxy maize in the field, by using a backpack plot sprayer with a flat-fan nozzle. The mixture led to lower phytotoxicity than nicosulfuron alone. The mixture tested did not affect the maize grain weight. The results showed that IE and CS could enhance crop safety and extend the use of nicosulfuron on waxy maize.展开更多
文摘通过温室盆栽法及对谷胱甘肽转移酶活性的测定了研究了安全剂cyprosulfamide对烟嘧磺隆的解毒作用,并对其解毒机理进行了初步探讨。试验结果表明:对30、60、90 g a.i./hm2烟嘧磺隆处理的解毒效果最好的cyprosulfamide添加比例分别为1∶0.2、1∶1、1∶5;在30、60、90 g a.i./hm2烟嘧磺隆处理中分别添加1∶0.2、1∶1、1∶5的cyprosulfamide后,对玉米株高的抑制率分别降低4.42、3.84、19.32百分点,对玉米鲜重的抑制率分别降低11.05、11.32、29.18百分点,而玉米中的谷胱甘肽转移酶活性分别增加34.4%、29.7%、31.8%。研究结果表明,添加安全剂cyprosulfamide提高了烟嘧磺隆处理后玉米幼苗中谷胱甘肽转移酶的活性,降低了烟嘧磺隆对玉米生长的抑制作用,总体上减轻了烟嘧磺隆对玉米的伤害。
文摘[目的]研究环丙磺酰胺、双苯噁唑酸和解草酯对郑单958、登海605、金彩糯628和自甜糯玉米烟嘧磺隆药害的解毒效果。[方法]大田条件下,于玉米6~7叶期喷施3种安全剂与烟嘧磺隆的组合,20 d后测定株高和叶数,玉米收获期测产。[结果]添加环丙磺酰胺或双苯噁唑酸的处理玉米株高、叶数和产量均高于单施同剂量的烟嘧磺隆处理;而在烟嘧磺隆高剂量(120、240 g a.i./hm^2)处理时添加解草酯可能会使玉米株高、叶数和产量进一步降低。[结论]环丙磺酰胺或双苯噁唑酸可有效缓解玉米烟嘧磺隆药害,解草酯则不能。
文摘Safeners are an important tool used to ensure the safe using of herbicide. This research was conducted to determine the effects of nicosulfuron alone and in combination with herbicide safeners on waxy maize （Zea mays L. var. ceratina Kulesh） injury, as well as on barnyard grass （Echinochioa crus-galli） and large crabgrass control （Digitaria sanguinalis L. Scop）. Whole-plant experiments were conducted under laboratory condition, by using post emergence treatment with safeners and nicosulfuron. The results showed that the herbicide safeners isoxadifen-ethyl （IE） and cyprosulfamide （CS） were more effective in reducing waxy maize injury from nicosulfuron than fenchlorazole-ethyl （FE）, cloquintocet-mexyl （CM） and mefenpyr-diethyl （MD）. Whole-plant dose-response experiments showed that nicosulfuron in combination with IE or CS increased its herbicidal activities against barnyard grass and large crabgrass. To confirm the result, a mixture of IE or CS and nicosulfuron were sprayed on waxy maize in the field, by using a backpack plot sprayer with a flat-fan nozzle. The mixture led to lower phytotoxicity than nicosulfuron alone. The mixture tested did not affect the maize grain weight. The results showed that IE and CS could enhance crop safety and extend the use of nicosulfuron on waxy maize.
