查询词典 cotton bollworm

But scientists in China recently reported that Bt cotton may help suppress bollworm in other crops growing nearby.

但是中国的科学家最近报道称Bt棉花也许能抑制种植在附近的农作物中bollworm的生长。

The research aimed to study the cotton bollworm resistance of Wangjiang cotton area.

［目的］研究了望江棉区棉铃虫的抗性。

This result has significant implications for the development and its management of the Bt cotton resistance by cotton bollworm in cotton fields.

这一结果对正确设置田间庇护所，通过对抗性基因的稀释，延缓棉铃虫对Bt棉产生抗性具有重要的启发和指导意义。

It is an important biological agent to control cotton bollworm in the cotton field by parasitizing rate at 22.9%.

其寄主范围非常广泛，该蜂对棉铃虫各世代的平均寄生率可达22.9 %，是棉铃虫田间生物控制的重要因子。

The cotton bollworm, Helicoverpa armigera, is one of the most destructive pests of cotton and threats the economic production of cotton seriously.

棉铃虫Helicoverpa armigera是棉花上最主要的害虫之一，其发生与危害严重影响棉花的生产。

Large areas of spring corn would induce the cotton bollworm, whichdecreased the population number of the 2nd generation in cotton fields.

2大面积的春玉米作物诱导棉铃虫，从而降低了第二代棉铃虫在棉田的种群数量。

In maintaining advantages in cotton breeding suitable to spinnin middle-count yarn, breeding research for cotton varieties suitable to spinning high-count yarn and middle-low-count yarn should be strengthened, and new varieties must be resistant to Fusarium and Verticillium wilt and cotton bollworm and must have high rate of cotton yield before frost, and emphasize the applicalion of transgenic breeding technique in future.

今后应在保持适纺中支纱棉花新品种选育优势的同时，加强适纺高支纱和中低支纱棉花新品种选育，育成品种必须抗枯、黄萎病，抗棉铃虫，霜前花率高，增强稳产性和适应性，并重视转基因育种技术的应用。

In Xinxiang Aera of Henan Province in 1997, the occurrence of cotton pests were investigated in the Bt cotton and common cotton fields The result showed that the numbers of cotton bollworm egg were similarly in both fields, but that of survival larvae on Bt cotton were lower than that on common cotton The occurrence of cotton aphis was no difference but the spider mite were more heavy in Bt cotton field At the same time,control strategy against cotton pests were discussed for the Bt cotton

对河南新乡棉区种植的转Bt基因棉和常规棉棉田虫情进行了定点系统调查和大田普查，结果表明：棉铃虫在两种棉田棉花上的落卵量无明显差别，而幼虫存量差异显著，Bt棉棉花上幼虫存量显著降低；Bt棉对棉蚜的发生无明显的影响，而Bt棉上棉红蜘蛛的发生比常规棉略重，同时初步研究制定出种植Bt棉后的棉虫综防对策

The compound eyes of cotton bollworm showed higher sensitivity under similar conditions; for one insect, the compound eyes were more sensitive to light in the evening than at the daytime, with dark eyes had higher sensitivity than bright eyes;(4) The comparison of the transition between different adaptative state at different time showed that the compound eyes of cotton bollworm showed more obvious daily rhythm.

在相同条件下，棉铃虫复眼表现出更强的敏感性；同种昆虫复眼夜间比白天敏感，暗眼比亮眼敏感；（4）对不同测试时间复眼明暗状态转化的比较表明，棉铃虫复眼的ERG反应具有更强的昼夜节律性。

On the condition of complementary nutrition at the adult stage, the average egg numbers oviposited by one female of cotton bollworm which fed cotton leaf, cotton boll and artificial diet at.

在成虫期有补充营养条件下，幼期取食棉叶、棉铃和人工饲料个体的平均单雌产卵量分别为565.2、1005.8和1052.2粒；成虫期无补充营养，则单雌产卵量依次为162.2、400.6和1035.6粒。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。