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
   male insect 的翻译结果: 查询用时:0.192秒
图标索引 在分类学科中查询
所有学科
植物保护
林业
生物学
更多类别查询

图标索引 历史查询
 

male insect
相关语句
  雄性成虫
     Male insect's apd and aed of Leptoconops kerteszi complex
     古塞细蠓复合组雄性成虫阳基侧突膨端体及阳茎中叶的研究
短句来源
  雄虫
     During the period of the insect on branches,the distribution of female insect in position are 49.11% in the upper part,28.80% in the middle and 21.09% in the lower part,male insect are 90.71% in the middle part,7.00% in the lower and 2.29% in the upper part.
     在定杆期,雌虫定杆数量分布依次为梢部(49.11%)、中部(28.80%)和基部(21.09%),雄虫依次为中部(90.71%)、基部(7.00%)和梢部(2.29%)。
短句来源
     The distribution of female insect in direction are 32.16% in east,27.36% in south,20.34% in north and 18.65% in west,male insect are 30.76% in west,25.84% in south,24.29% in east and 19.01% in north.
     雄虫依次为西(30.76%),南(25.84%),东(24.29%),北(19.1%);
短句来源
     Emergence rhythm of adult indicated that most adults (female and male insect) emerged from 7:00 to 19:00. The rate of pupa emergence was 82.5% and the emergence peak was at 13:00 p. m.
     成虫羽化节律观察表明,大部分成虫(雌虫、雄虫)于上午7时至下午19时羽化。 据对113头蛹的观察,蛹羽化率为82.5%,羽化高峰在13时。
短句来源
     the male insect life is 88~125 days long,and is 103 days long on the average,the female and male adults survive those take C. equisetifolia for eating by 302 days and 40 days respectively.
     雄虫寿命88~125d,平均103d,雌、雄成虫分别比取食木麻黄(Casuarinaequi setifolia)的多存活30 2d、40d。
短句来源
     Apocheima cinerarius Erschoff lives in soil layer 20 ~ 50cm beneath surface in pupaein winter,When soil temperature rises to 0 癈 in spring, its begin pupating. The femaleinsect emergence is early slightly than male insect. The bisexual ratio is 1:0.7145.
     从和田地区的整体区域生态出发,进行春尺蠖种群生物学和生态学研究,得到如下结果:春尺蠖以蛹在20—50cm土层中越冬,当春季土壤温度升至O℃时开始化蛹,雌虫比雄虫羽化略早,雌雄比为:1:0.7145。
短句来源
更多       
  “male insect”译为未确定词的双语例句
     It is first reported to use directly sterilant and need not artificial rear,fly sterility male insect to control field pest in the world.
     皮棉产量增加78%~150%,平均109%,将不育剂在田间直接应用,而无需人工饲养、放飞不育虫的方法,世界上还未见报导。
短句来源
查询“male insect”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。
  male insect
Active inhibition of mating behaviour in a male insect is reported here for the first time.
      
Ophrys flowers sexually swindle male insect pollinators that cross-pollinate flowers during acts of pseudocopulation on the labellum.
      
By nature, mating disruptants interfere with biological interactions by hindering a male insect's ability to locate a female and reproduce.
      


It was demonstrated cytologically that in a natural population of the grasshopper,Catantops brachycerus, located at Sheh Hills in the vicinity of Shanghai, some individualswere found to carry an extra chromosome fragment in addition to the normal complementof 11 pairs of autosomes and an X chromosome in case of males. This extra fragment,being borne at the distal end of the large arm of the autosome No. 8 with no visibleloss on the part of the latter, is composed exclusively of heterochromatin, which showsnegative...

It was demonstrated cytologically that in a natural population of the grasshopper,Catantops brachycerus, located at Sheh Hills in the vicinity of Shanghai, some individualswere found to carry an extra chromosome fragment in addition to the normal complementof 11 pairs of autosomes and an X chromosome in case of males. This extra fragment,being borne at the distal end of the large arm of the autosome No. 8 with no visibleloss on the part of the latter, is composed exclusively of heterochromatin, which showsnegative heteropycnosis at M_1 similar in behavior to that of the X-chromosome. Thisfinding, together with other circumstantial evidence seems to indicate that this extra frag-ment probably found its origin from the X-chromosome. A close examination of the be-havior of the unequal bivalent during the spermatogenesis of the hemizygotes has revealedfurther two points of interest, one is the existance of a single chiasma between the cen-tromere region and the point of the attachment of the extra fragment in the diplotenestage and the other is the appearance of equational segregation of the unequal bivalentin the first anaphase (A_1). These two facts taken together bear strong evidence in sup-port of one plane theory of crossing-over and of one chiasma and one crossing-over rela-tionship theory as well. Of 530 male insects collected and examined from the population, 100 were foundto be hemizygous and 3 homozygous for the extra fragment. This amounts to a totalfrequency of 10% for this fragment in the population. Statistical analysis of the data forthe 3 different genotypes, homozygous normal, hemizygous and homozygous for the extrafragment shows that not only the total respective frequencies obtained for the 3 classesare in close conformity with the values expected on the basis of the Hardy-Weinbergformula, but also the variation in 3 successive generations and in different seasons doesnot significantly deviate from each other, giving a strong indication that the frequencyof the extra fragment has already reached a state of dynamic equilibrium in the popula-tion. As to the mechanism of how equilibrium of this chromosomal polymorphism ismaintained in the population, it remains to be an open question, though there is an in-dication of the favorable selection for the hemizygotes.

在上海附近的佘山,发现短角斑腿蝗自然群体中的一些个体的第8染色体是不等双价体。该染色体的额外片段比较大,由异染色质组成,并在减数分裂中期I和X染色体一样呈现负异固缩现象。在带有这个额外片段的半合体减数分裂时,发现第一次都是均等分离。这个现象与所观察到的下列事实一致,就是这对异形染色体的着丝点与额外片段之间经常只出现一个交叉点,再一次证明交换与交叉一对一关系和交换先于交叉理论的正确性。有关这个片段的来源,从—些旁证指出有可能来自X染色体。 所分析的530个个体中,100个是半合体,3个是带有这个片段的纯合体,因而得知额外片段在群体中的频率为10%。统计分析表明这三种遗传型,即正常纯合体、半合体和额外片段纯合体的频率符合Hardy-Weinberg公式,而且在连续三个世代之间以及不同季节之间这些频率没有显著的变化。有关额外片段在群体中的平衡机制,我们认为有可能是选择对半合体有利而使这种染色体维持稳定的多态平衡。

The sugarcane yellow stem borer (Argyroploce schistaceana Snellen ) belongs to Lep-idoptera, Tortricidae. The eggs of the borer are dome-shaped, about 1.2mm.long,0.73mm. wide,and flattened elliptical in outline.The duration of egg lasts about 126 hours(at 27℃ and R.H. 80%). About 4 - 6 hours after deposition, nuclear cleavage begins. The blastoderm stage appears at about 10 hours after deposition. Then the blastoderm gives rise to a broad germ and serosal rudiment. The serosa spreads over the germ followed by...

The sugarcane yellow stem borer (Argyroploce schistaceana Snellen ) belongs to Lep-idoptera, Tortricidae. The eggs of the borer are dome-shaped, about 1.2mm.long,0.73mm. wide,and flattened elliptical in outline.The duration of egg lasts about 126 hours(at 27℃ and R.H. 80%). About 4 - 6 hours after deposition, nuclear cleavage begins. The blastoderm stage appears at about 10 hours after deposition. Then the blastoderm gives rise to a broad germ and serosal rudiment. The serosa spreads over the germ followed by the ammion. The germ band becomes cup-shaped, elongated and turns on its side in the flattened egg. After about 24 hours, elongation continues, and segmentation takes place; the germ band becomes spirally coiled. At 30-40 hours after deposition, the head and the thoracic appendage appear. The entire process of the shortening and dorsal closure occurs between 50-66 hours after oviposition. When the shortening and closure are completed, the germ band elongates rapidly, and the blastokinesis begins. In the blastokinesis stage, the posterior end first straightens out, separating from the head,then turns ventrally and extends forwards along the ventral surface of the body. Eventually the tail end is near the head, the dorsal surface of the embryo now facing outwards toward the margin in the egg. At about 80 hours after deposition, the head begins rotating around the longitudinal axis, so that ventral surface of the head once again faces downwards toward the attached surface of the egg. This is clearly shown by the apparent separation of the paired eyes which formerly ovorlay one upon another. After about 80-126 hours the quiescent stage begins, the head is in the anterior part of the egg and the tail is tucked beside the head.The embryo further increases in length,and the tail is tucked into the space between the thorax and the anterior part of the abdomen. But the embryo does not change its position, with the subsequent active ingestion of the yolk after 126 hours, hatching takes place.Eggs of the yellow sugarcane borer deposited by females which were crossed with males from pupae irradiated with 3000 r from 60Co are sterile and the embryonic development usually stops before blastokinesis. These sterile egg are rich in yolk, and it was observed that the egg-parasite Trichogramma prefers to oviposit in these eggs.In laboratory experiments, the sterile eggs obtained from 6 0Co treatment were exposed to Trichogramma sp, and percentages of the normal eggs and non-fertilized eggs laid by virgin moths were used for comparison. The result indicated that the parasitism in these three cases were similar, 60-65%. In field experiments, it was shown that the percent ages of parasitism of the eggs from the control plot and from the plot where sterile males were released were similar with an average of 55 and 57% respectively.In the insecticide -treated plot, however the parasitism was markedly decreased with an average of 34.7% only.It appears therefore,that the release of sterile male insects does not affect the activity of the egg parasite in the field and under certain conditions; with the presence of a large number of sterile eggs, the parasitism might even be increased. It is quite possible that the sterile male insect release technique would play an important role in the program of integfrated insect pest management.

甘蔗黄螟Argyroploce schistaceana(Snellen)属鳞翅目卷叶蛾科。卵扁椭圆形,腹面扁平,背面稍隆起,长1.2毫米,宽0.73毫米。在27±1℃,相对湿度80%,卵期126小时。产卵后4~6小时开始卵裂,10小时胚盘形成,14小时胚带靠近后端三分之一处出现,19小时胚带形成杯状(Cup—shaped),随即胚带延长及旋转,24小时胚带继续延长,卷曲及分节,30~40小时头胸腹附肢陆续出现,40~50小时附肢延长、50~66小时胚带缩短及背合,随后胚动开始,头尾分开,胚带延长,尾端沿胚体腹面向上弯,74小时尾端已伸达头侧,80小时,头部再旋转,头部腹面接贴着在物体表面,这时期两侧眼点可见。80~126小时为静止阶段,尾端摺入在头侧,胚体继续延长,深摺入胸腹节间。直至卵黄消化尽,幼虫孵化出来。 辐射不育卵(黄螟后期雄蛹3万r辐射后,羽化成虫与正常雌蛾交配产下的卵),胚胎不能完成发育,一般在胚动前已停止发育,这时期卵黄仍较丰富,赤眼蜂(Trichogramma sp.)常选择这种卵寄生。室内试验黄螟受精卵、不受精卵及不育卵的赤眼蜂寄生率差异不大,寄生率达60~65%。但平均每头雌蜂在不育卵寄...

甘蔗黄螟Argyroploce schistaceana(Snellen)属鳞翅目卷叶蛾科。卵扁椭圆形,腹面扁平,背面稍隆起,长1.2毫米,宽0.73毫米。在27±1℃,相对湿度80%,卵期126小时。产卵后4~6小时开始卵裂,10小时胚盘形成,14小时胚带靠近后端三分之一处出现,19小时胚带形成杯状(Cup—shaped),随即胚带延长及旋转,24小时胚带继续延长,卷曲及分节,30~40小时头胸腹附肢陆续出现,40~50小时附肢延长、50~66小时胚带缩短及背合,随后胚动开始,头尾分开,胚带延长,尾端沿胚体腹面向上弯,74小时尾端已伸达头侧,80小时,头部再旋转,头部腹面接贴着在物体表面,这时期两侧眼点可见。80~126小时为静止阶段,尾端摺入在头侧,胚体继续延长,深摺入胸腹节间。直至卵黄消化尽,幼虫孵化出来。 辐射不育卵(黄螟后期雄蛹3万r辐射后,羽化成虫与正常雌蛾交配产下的卵),胚胎不能完成发育,一般在胚动前已停止发育,这时期卵黄仍较丰富,赤眼蜂(Trichogramma sp.)常选择这种卵寄生。室内试验黄螟受精卵、不受精卵及不育卵的赤眼蜂寄生率差异不大,寄生率达60~65%。但平均每头雌蜂在不育卵寄生卵粒数最多,不受精卵最少。 田间释放不育雄蛾小区试验,亦发现不育雄蛾区与对照区黄螟卵的寄生率接近,分别为55%和57%,但施药区显著下降,为34.7%。从室内及?

In the southern part of Hainan Island, Nephopteryx sp., a borer of cashew apple and nut, propagates 9 generation in a year. The pest occurs during the October-November period and disappears from the middle to the end of July.The serious incidence takes place usually during the April-June period, with 20-60% cashew fruits infested. During the April-July period, the life cycle lasts 26-31 days for male insects and 28-36 days for female ones;during the October-March period, the life cycle lasts 28-34 days...

In the southern part of Hainan Island, Nephopteryx sp., a borer of cashew apple and nut, propagates 9 generation in a year. The pest occurs during the October-November period and disappears from the middle to the end of July.The serious incidence takes place usually during the April-June period, with 20-60% cashew fruits infested. During the April-July period, the life cycle lasts 26-31 days for male insects and 28-36 days for female ones;during the October-March period, the life cycle lasts 28-34 days for male insects and 30-36 days for female ones.The female insect has a clear selectivity on the location and development stage of the fruit for them to oviposit. The larva has a habit of migrating to another fruit once the attacked fruit dries up. The horizontal distribution of the pupae with earthen cocoons in the soil under the canopy is uneven. The pest population grows with the increase of fruit number. The damage caused by thd pest varies with different development stages of the fruit. The most serious damage occurs in the middle stage, i.e. 20-35 days after fruit setting. It gives effective control to spray the fruit with insecticides, such as Decis,Sumicidin, Rogor, etc., in combination of the destroying of all infested fruits and the treatment of pupar-harbouring soil. The first round of insecticide spraying should be conducted in the middle or at the end of March when the peak fruiting season sets in.

在海南岛南部,腰果蛀果斑螟(Nephoptefyx sp.)一年发生9代。田间始见期为10—11月,末见期为7月中下旬。4—6月是该虫大发生为害期,田间虫果率为20~60%。 4—7月间完成一代所需时间雄虫为26~31天,雌虫28~36天;10—3月份完成一代雄虫需28~34天,雌虫30~36天。成虫产卵对果实的部位以及果实的发育阶段有明显的选择性。幼虫具转果为害的习性。蛹在树冠下土壤中呈不均匀水平分布。种群虫口的建立与田间结果量的增长同步,产量损失因果实发育阶段而异。田间中果态果实坚果受害最重,是重点保护目标。防治措施,目前以化学防治为主,有效药剂有敌杀死、速灭杀丁、杀虫双和乐果等,第一次喷药防治适期应在田间大量果实即将进入中果态之时,在乐东腰果植区通常为8月中下旬。第一次喷药后,连续用药2~3次,即可保护95%以上的果实免遭虫害。此外,结果早期摘除树上虫蛀果,收集地上落果及利用害虫潜伏场所进行毒杀,对降低害虫种群虫口有重要意义。

 
<< 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male insect的内容
在知识搜索中查有关male insect的内容
在数字搜索中查有关male insect的内容
在概念知识元中查有关male insect的内容
在学术趋势中查有关male insect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