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The supercooling points of adult were all lower than local mean minimum temperatures, can overwinter safely.

各种群的过冷却点都低于当地各月平均温度,越冬成虫可以保持较高的越冬存活率。

3 Larvae stages of Postosia brevitarsis Leiwis overwinter in dung of cow, sheep, and pig with rich humus.

以2~3龄幼虫在腐殖质丰富的牛、羊、猪粪中越冬,未见有成虫越冬现象。

It is proved by the experiment that L. sativae can not naturally overwinter in the regions above 35.N. However, the winter vegetable storerooms are its main overwintering place.

通过试验证明,美洲斑潜蝇在35°N以北的地区不能自然越冬,蔬菜储藏室是其越冬的主要场所。

The changed physiological parameters in the body of ladybird in every season caused these differences. The body weight including fresh and dry weight, content of fat and glycogen, activities of glutathione S-transferase in the body of H. axyridis all decreased gradually in overwintering. All these indices began to recircle after hibernation and would be up to the optimum status when they entered dormancy.

造成这种差异的原因是不同时期异色瓢虫体内的一些生理指标不一样,在越冬期异色瓢虫体重、脂肪和总糖含量逐渐降低,谷胱甘肽S-转移酶的活性也逐渐下降,出蛰后各项指标又开始回升,直至进入越冬时达到最佳状态。

The basic disease cycle of Sclerotinia diseases begins with the overwintering of sclerotia in the soil.

菌核病的疾病周期始于土壤中菌核的越冬,随着越冬的进行菌核开始萌发。

The glucose-6-phosphate dehydrogenase increased during overw intering,indicating that reduced condition of cell might keep the cell in pr oper function even in cold temperature,and also for cryoprotectant synthesis.The changes in trehalase activity showed that low activity was for keeping higher tre halose content and high activity for removing it in the spring.

越冬期间,体内葡萄糖-6-磷酸脱氢酶活性增高所产生的还原型烟酰胺腺嘌呤二核苷酸磷酸,可为细胞在亚低温状态下发挥正常功能以及体内抗冻保护性物质的合成提供还原动力,同时通过调节体内海藻糖酶活性来维持越冬期间较高含量的海藻糖和移除春季体内累积的过多的海藻糖。

This insect pest spread into Guiyang,Guizhou Province,in the late 1980s and occurred 3~4 generations during a year. A mixture of the third and fourth generations overwintered. It could survive the winter in egg,nymph and pupa.

该虫80年末传入贵州,在贵阳地区每年发生3~4代,世代重叠极重,越冬代是第3、4两代的混合群体,越冬虫态有卵、若虫和蛹。

Results indicated that changes in climatic factors, such as temperature,rain fog,snow and wind,were main causes of direct influences on their overwintering behavior.

结果表明丹顶鹤越冬期间,气候因子的变化是对其行为产生直接影响的主要因素,温度、雨、雾、雪、风等发生大幅度变化时,都将导致越冬期丹顶鹤的行为发生相应的适应性变化,对迁徙行为的影响则更为明显。

Yancheng Nature Reserve in Jiangsu Province, the most overwintering of the red-crowned crane, 2001 amounted to only over 600, now known as the world's largest number of wintering habitat.

在江苏省盐城自然保护区,越冬的丹顶鹤最多一年达600多只,成为世界上现知数量最多的越冬栖息地。

Other data indicate that the block冬耕winter irrigation, cotton bollworm overwintering pupae in about 80% of mortality, not only cultivated the land irrigated winter mortality rate of 60% to 70%, non-cultivated non-irrigated land, only 30% of the ~ 40

另有资料表明,冬耕冬灌的地块,棉铃虫蛹越冬死亡率在80%左右,只耕不灌的地块越冬死亡率为60%~70%,不耕不灌的地块只有30%~40

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