助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   hatching 在 植物保护 分类中 的翻译结果: 查询用时:0.012秒
图标索引 在分类学科中查询
所有学科
植物保护
水产和渔业
畜牧与动物医学
蚕蜂与野生动物保护
生物学
计算机软件及计算机应用
机械工业
物理学
航空航天科学与工程
更多类别查询

图标索引 历史查询
 

hatching
相关语句
  孵化
    Hatching characteristics of cereal cyst nematode, Heterodera avenae in Shanxi, China.
    燕麦胞囊线虫(Heterodera avenae Woll.)孵化特性研究
短句来源
    It was found that compound 9 was the most active in antifeeding to the larvae among the tested compounds,the rate of antifeeding was both over 50% with the method of selection and non-selection and compound 4(1-phenyl-4-p-methoxyphenyl-1,3-butadiyne) and 5 inhibited the egg hatching,the rate of inhibiting was 42.73% and 60.48%,respectively,at 0.5 mg·mL-1 for 72 h.
    在0.5 mg. mL-1质量浓度处理时,测得化合物4(1-苯基-4-p-甲氧苯基-1,3-丁二炔)和化合物5,72 h内对卵孵化抑制率分别为42.73%和60.48%;
短句来源
    The developing rate of Microplitis mediator in three insect cell line conditioned media is 93.3%, 86.3% and 60.0% respectively, the hatching rate of it is 77.2%, 80.0% and 16.7%;
    这种刺激因子具有热稳定性,能在体外成功地促使寄生蜂发育并孵化。 中红侧沟茧蜂初孵卵在52一T入们N一FH、Be一m一Schne记er’S和变性的培养物这三种胚胎细胞培养物中发育率分别为93.3%、86.3%和60.0%,孵化率分别为77.2%、80.0%和
短句来源
    /mL also inhibited over 92 percent of hatching 48h later.
    /mL处理卵囊48h的相对孵化抑制率也在92%以上,且大部分初孵线虫死亡。
短句来源
    Its hatching was inhibited after stored at 4℃. After 20d stored at 4℃, the hatching rate was only 23.02%.
    4℃冷藏处理对卵孵化具有抑制作用,在处理20d后,卵的孵化率可降到23.02%。
短句来源
更多       
  “hatching”译为未确定词的双语例句
    The most proper temperature for development was 22℃~25℃,and the hatching rate and live larvae ratio reached to 84.2% and 87.5% respectively.
    发育最适温度在22℃~25℃之间,卵的孵化率为84.2%,幼虫成活率为87.5%。
短句来源
    The female moth always laid eggs to the crevice and wound in stem bark, the hatching rate of the egg is 90% and egg stage is 16d.
    卵集中产在干部树皮裂缝、伤口等处,孵化率达90%以上,卵期16d。
短句来源
    The suitable temperature for hatching was 25癈, and its rate was 75.35%;
    卵在25℃下的孵化率最高,为75.35%。
短句来源
    the developing rate of Campoletis chloridae is 92.2%, 86.7% and 43.1% respectively, the hatching rate of it is 94.8%, 93.6% and 20.0. but none of control group can be develop.
    16.7%:棉铃虫齿唇姬蜂相对应的发育率为92.2%、86.7%和43.1%,孵化率为 94.8%、93.6%和20.0%,但在未经细胞培养的培养液中两种寄生蜂均不能发育;
短句来源
    When eggs placed out of the wood block, egg stage is 13~15days, average hatching rate and average parasite rate are increased, they are 83.3% and 87.5% respectively.
    卵放在木段外,卵期缩短为13~15天,平均孵化率及初孵幼虫对光肩星天牛幼虫的平均寄生率均有所提高,分别为83.3%和87.5%。
短句来源
更多       
查询“hatching”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  hatching
The rate of oxygen consumption and weight progressively increased within 70 days after hatching.
      
After hatching, it increased but then decreased to a certain level, which remained constant to the end of the studied period.
      
We observed unidirectional changes in the mass-specific rate of oxygen consumption and specific weight gain during embryonic development and this pattern was maintained after hatching.
      
The Species Specificity of Hatching Enzyme and Its Effect on the Duration of Embryogenesis in the Fish Cichlasoma nigrofasciatum
      
The density of mitochondrial profiles increases during embryogenesis and decreases after hatching, while their mean size increases, especially in the oxidative fibers, but it somewhat decreases in 6-month old chicks.
      
更多          


The injurious insects of cotton of this province, however, have not hithertobeen carefully studied, especially the pink bollworm, which annually reducesthe cotton production by 10 to 30 per cent. The present authors spent twoyears in observing the life history and habits of this insect, in attempting tofind some effective control measures. The result is herewith summarized :- 1. In the vicinity of Wu-chang, the pink bollworm has three generationsa year. The first generation occupies May and July. The second...

The injurious insects of cotton of this province, however, have not hithertobeen carefully studied, especially the pink bollworm, which annually reducesthe cotton production by 10 to 30 per cent. The present authors spent twoyears in observing the life history and habits of this insect, in attempting tofind some effective control measures. The result is herewith summarized :- 1. In the vicinity of Wu-chang, the pink bollworm has three generationsa year. The first generation occupies May and July. The second one occursin mid-July and the last in late-August. Due to the lower temperature, theemergence of the first generation need about two months. 2. In day time, the adult is usually inactive, while in windless night,after seven o'clock, it becomes very active and lays eggs mostly on green bollsand calyx. about a week later, the eggs hatch and the newly-hatched larvaeare shortly getting into the bolls. After four days they often eat into theseeds. Ten days later, the lint is so stunted as to become dusky yellow incolor, thus both the yield and the quality of cotton are greatly lowered. Themature larvae appear about half a month after. 3. Field experiments have shown that three dustings of 10% DDT- sulfurpowder were very effective. In the severely damaged cotton area, the thirdspray may be simultaneously done with controlling the cotton leaf-hoppers andthe cotton leaf-rollers. 4. About 84% hibernating larvae in cotton seeds will come out when thecotton exposed in sun light and stored in the farmer's house. Hence it seemsadvisable to put cloth or other soft material covers on the cotton stored inorder to collect and kill the larvae under them. In addition, destruction of allremaining bolls on the cotton stalks, as early as possible in winter is important. 5. For controlling the bollworms in cotton store-houses, the followingresults have been obtained 50% wettable DDT diluted with 20 parts of water,91% of larvae were killed within 30 days; 6.5% 666 (benzene hexachloride)gave a mortality of 63% in four months. Wettable 6.5% 666 diluted withwater (1:100), has been proved to be the most effective ovicide which destroys99.4% of eggs while parathion (E605) also gave a very high mortality at97.7%. But 50% wettable DDT (1:100) Kills eggs at 64.2% and lead arsena-te only 16.2% respectively. 6. There were 39.1% overwintering larvae parasitized by parasitic mitesand wasps. Among them, most are the mite, Pediculoides ventricosus Newport,while the parasitic wasps Eurypterna arakawae Mats. less than 0.5%.

红铃虫在南方棉区为害棉花相当严重,除去脱落蕾铃外,僵黄花率为10—30%,我们针对这个严重问题,进行了红铃虫生活史的观察研究与防治方法试验,写出初步结果,提供防治参考。 1.红铃虫在华中武昌棉区一年有三代。第一代羽化在5至6月,7月中旬为第二代;8月下旬为第三代;第一代的蛹和幼虫所需时期均较第二、三代长。 2.成虫白天不活动,夜晚7时以后无风天气活跃最盛,产卵以在青铃上及花萼上为最多。孵化后三十多分钟即钻入棉桃内为害,4天即侵入棉籽内取食,10天棉瓤纤维呈僵黄状,半月后幼虫即可老熟(第三代的)。 3.田间防治红铃虫以10%滴滴涕硫磺粉喷三次效果显著,在后期棉虫严重地区可结合防治叶跳虫卷叶虫等同时进行。 4.籽花内的幼虫在群众家里及晒花时逃出84%,因此指导群众将籽花堆上加覆盖物,再结合帘架晒花是消减过冬红铃虫最经济有效的办法。 4.防治仓库越冬红铃虫以50%可混性滴滴涕1:30倍水溶液杀虫效果最佳。30天内死亡率达91%.6.5%可混性666(1:20)死亡率为63%。但是1:100倍的水溶液杀卵效率高到99.4%。稀释万分之一的E605为97.7%。50%可混性滴滴涕1:100杀卵率为64.2%,砒酸铃最差...

红铃虫在南方棉区为害棉花相当严重,除去脱落蕾铃外,僵黄花率为10—30%,我们针对这个严重问题,进行了红铃虫生活史的观察研究与防治方法试验,写出初步结果,提供防治参考。 1.红铃虫在华中武昌棉区一年有三代。第一代羽化在5至6月,7月中旬为第二代;8月下旬为第三代;第一代的蛹和幼虫所需时期均较第二、三代长。 2.成虫白天不活动,夜晚7时以后无风天气活跃最盛,产卵以在青铃上及花萼上为最多。孵化后三十多分钟即钻入棉桃内为害,4天即侵入棉籽内取食,10天棉瓤纤维呈僵黄状,半月后幼虫即可老熟(第三代的)。 3.田间防治红铃虫以10%滴滴涕硫磺粉喷三次效果显著,在后期棉虫严重地区可结合防治叶跳虫卷叶虫等同时进行。 4.籽花内的幼虫在群众家里及晒花时逃出84%,因此指导群众将籽花堆上加覆盖物,再结合帘架晒花是消减过冬红铃虫最经济有效的办法。 4.防治仓库越冬红铃虫以50%可混性滴滴涕1:30倍水溶液杀虫效果最佳。30天内死亡率达91%.6.5%可混性666(1:20)死亡率为63%。但是1:100倍的水溶液杀卵效率高到99.4%。稀释万分之一的E605为97.7%。50%可混性滴滴涕1:100杀卵率为64.2%,砒酸铃最差为16.2%。 6.越冬幼虫被寄生的平均有39.1%,发现天敌有二种,其中绝大多数是榖痒螨(Pediculoides ventricosus

Lycaena (Polyommatus) boetica L. is an important pest of green manureplants, being especially injurious to several species of Crotalaria at Liuchow,Kwangsi. This small butterfly hibernates in the egg stage on flower buds,immature pods and other parts of the hosts. Hatching takes place early inMarch. The first adult is seen in April. The larvae can be found from Marchtill December, causing damage to flowers and pods. Under insectary conditionsthis butterfly was found to have 7-8 generations annually. Each...

Lycaena (Polyommatus) boetica L. is an important pest of green manureplants, being especially injurious to several species of Crotalaria at Liuchow,Kwangsi. This small butterfly hibernates in the egg stage on flower buds,immature pods and other parts of the hosts. Hatching takes place early inMarch. The first adult is seen in April. The larvae can be found from Marchtill December, causing damage to flowers and pods. Under insectary conditionsthis butterfly was found to have 7-8 generations annually. Each generationvaried from 20-176 days.

紫蓝小灰蝶在广西柳州沙塘是因种野百合属绿肥豆荚的主要害虫。此外该虫还为害木豆、刀豆和扁豆。根据文献该虫也为害荷兰豆和蚕豆。 小灰蝶和豆荚螟为害绿肥豆荚的特征和区别文中有详细的叙述。 小灰蝶以卵态在绿肥的花苞、嫩荚、茎和叶上越冬。幼虫为害豆类的时期自3月下旬直至12月上旬。在饲育室内一年发生7—8代。一世代需时20—176日。 成熟绿肥豆荚被害率自1.8—22.6%不等,本虫更为害花朵和嫩荚,使之凋落,不能结实。 绿肥作物终年开花结荚,不独是小灰蝶越冬的理想寄主,也助长其他重要豆作害虫如豆荚螟的繁殖。作者建议及时和合法刈割绿肥是解决本虫和若干其他豆作害虫的有效方法。

The present paper gives a report on a study of the life his- tory of a destructive pest, Melanauster chinensis Forster, of citrus trees in Foochow during the years 1951 and 1952. It has been found that the adults lay eggs beginning from the last part of May until the end of July. Eggs are inserted in the bark of the tree trunk about 1. 4 inches from the ground. Incubation period lasts from 9 to 14 days. After hatching the young larvae feed under the bark for three or four months. In October they bore into...

The present paper gives a report on a study of the life his- tory of a destructive pest, Melanauster chinensis Forster, of citrus trees in Foochow during the years 1951 and 1952. It has been found that the adults lay eggs beginning from the last part of May until the end of July. Eggs are inserted in the bark of the tree trunk about 1. 4 inches from the ground. Incubation period lasts from 9 to 14 days. After hatching the young larvae feed under the bark for three or four months. In October they bore into the wood from a place about one to two inches above the ground. Overwintering of the larvae in the burrows generally begins in November or December. They resume actti- vity in March the following year. Pupation takes place abou the middle part of April. The pupal period lasts from 18 to 20 days. After emergence the adults remain in the pupal cells in the upper part of their burrows for about five to eight days. The adults appear from the middle part of May to the middle part of August. Burrows made by the larvae under the bark as well as in the wood have been studied carefully. Recommendations have been given to improve the original technique of destroying the larvae by probing with wire.

星天牛为柑桔主要害虫之一,研究此种害虫者颇不乏人,但就所见文献中关于该虫习性的报道,多不足作为防治的有力参考。笔者有鉴及此,于一九五一至一九五二年在福州研究这一害虫的生活习性,尤其对于幼虫为害的隧道,有比较详细的观察。把果农钩杀幼虫这一防治方法的实践与理论相结合,初步掌握了幼虫在柑桔树干中钻蛀为害的规律,使过去所谓奥妙不可捉摸的钩杀技术得到了解析,同时也把这一技术从现有的水平提高了一步,希望可以为一般从事柑桔栽培工作者所掌握,成为简单易学的一件事。五月下旬至七月下旬均有成虫产卵,产卵位置平均离地面1.4寸,卵期九至十四天。幼虫孵化后即从产卵处蛀入,向下蛀食于表皮与木质部之间,其向下蛀食范围多在地面下五寸以内。一般在三、四个月后亦即在十月左右,以成熟或将成熟的幼虫,蛀入木质部内,作一隧道,准备过冬及化蛹。蛀入孔多在地面下—、二寸处。一般幼虫在十—、二月开始休眠越冬,历时约三、四个月,翌年三月以后又开始恢复活动。四月中旬开始化蛹,蛹期十八至二十天。成虫羽化后在蛹室内停留五至八天。自五月中旬至七月中旬都有成虫出现,迄八月中旬仍见有极少数成虫。幼虫所营隧道的形状、长短,都有一定的规律,文中有详细的叙述,并附有图解。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关hatching的内容
在知识搜索中查有关hatching的内容
在数字搜索中查有关hatching的内容
在概念知识元中查有关hatching的内容
在学术趋势中查有关hatching的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社