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pupa
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    AN EASY METHODFOR POPULATION DENSITY ESTIMATION OF DENDROLIMUS TABULAEFORMIS PUPA
    油松毛虫种群密度简易估计方法的研究
短句来源
    The male pupa gravity of L. dispar which fed on natural leaves and man-made foods are 0.58g and 0.72g,and the female's are 0.87g and 1.53g.
    用柞树叶和人工饲料饲养的舞毒蛾雄重分别为0.58g和0.72g,雌重分别为0.87g和1.53g。
短句来源
    At woods the winter population's the average mortality 1 instar nymphy's is 27.83%, 2 instar nymphy32.35%, female nymphy 19.04%,male nymphy and pupa 11.42%, female adult 9.67%.
    冬季林间各龄死亡率为:1龄若虫27.83%,2龄若虫32.35%,分化后的雌若虫19.04%,雄若虫及11.42%,雌成虫9.67%。
短句来源
    At woods the whole year's the average mortality 1 instar nymphy's is 49.67%, 2 instar nymphy51.76%, female nymphy 42.25%,male nymphy and pupa 27.08%, female adult 36.33%.
    林间全年种群各龄平均自然死亡率为:1龄若虫49.67%,2龄若虫51.76%,分化后的雌若虫42.25%,雄若虫及27.08%,雌成虫36.33%,总的死亡率43.64%。
短句来源
    Thelarva pupate in early September and the percentage of pupation is90.28%,pupa stage lasts 8~21days, the pupa become to adult at lateSeptember and the percentage of eclosion is 88.16%.
    幼虫4、5 月份为幼龄期,生长发育缓慢,6、7 月份生长发育加快,8、9 月份老熟,8 月上旬进入预期,9 月上旬化,化率90.28%,期8~21d,平均为17.35±0.47d。 9 月下旬羽化为成虫,羽化率为88.16%。
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  “pupa”译为未确定词的双语例句
    The development starting point of coons and pupa is 13.9 0.99 , it's effective accumulated temperature is 265.24 9.00 day degree.
    蛹的发育起点温度13.9±0.99℃,有效积温265.24±9.00日度。
短句来源
    Equation that can best describe pupation schedule was derived as y = 0.0281 + 0.0302t + 0.0097t2 -0.0005t3. The pupa entered their eclosion stage on May 18th and ended on June 15th, ascending stage of eclosion turned up on May 19th and fastigium emerged three days later, on May 28th eclosion arrived at its descending stage.
    化蛹进度最适数学模型为y=0.0281+0.0302t+0.0097t~2-0.0005t~3。 5月18日~6月1日为蛹的羽化期,羽化始盛期出现在5月19日,高峰期为5月22日,盛末期为5月28日;
短句来源
    In 15, 18, 21, 24 and 27 C, the growth and development rates, starting tem-perature and effective temperature of egg, larva,pupa and adult were tested.
    通过在15、18、21、24、27℃实验条件下测定侧柏毒蛾实验种群的发育速率,各发育阶段及整个世代的发育起点温度和有效积温,证明了在31℃以上该毒蛇1龄幼虫不能成活;
短句来源
    After raising the insects at various temperature for several generations,it was found that the necessary intial temperature for pupa development was C=13 10±1 59(℃) and the effective accumulated temperature K=92 16±4 25 (DD).
    经多代饲养测定,蛹的发育起点温度C=(13.10±1.59)℃,有效积温K=92.16±4.25(DD);
短句来源
    and fat content of pupa is 225.2 g/kg,being 3.42 times of that of the moth;
    蛹的脂肪含量为225.2g/kg,是成虫的3.42倍。
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  pupa
In homozygotes for allele Indyp115, we have previously revealed two phases of embryotic lethality and lethality at the larval and pupa stages.
      
Genetic Regulation on the Black Phenotype Mutants of Moth and Pupa of Helicoverpa armigera (Lepidoptera: Noctuidae)
      
Description of the larva and pupa of Parnops glasunovi (Coleoptera, Chrysomelidae)
      
The last instar larva and pupa of Parnops glasunovi Jcbs.
      
The morphology and development of egg, larva and pupa were investigated, which has previously not been done.
      
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The Bischofia burnet, Histia rhodope cramer, is one of the most destructive insects of the useful shade tree Bischofia trifoliata Hook in Fuzhou Fujian province. The life history and biological characters of this insect has been worked out. It propagates four generations a year in Fuzhou and overwinters with various instar larvae either in the crevices of twigs and the trunk, or under the cork of the stem. Occasionally only very few pupae are overwintered. Most of the larvae became active, if the air temperature...

The Bischofia burnet, Histia rhodope cramer, is one of the most destructive insects of the useful shade tree Bischofia trifoliata Hook in Fuzhou Fujian province. The life history and biological characters of this insect has been worked out. It propagates four generations a year in Fuzhou and overwinters with various instar larvae either in the crevices of twigs and the trunk, or under the cork of the stem. Occasionally only very few pupae are overwintered. Most of the larvae became active, if the air temperature raised higher than 10℃ in winter. No remarkable phenomenon of hibernation was found. Eggs are laid under the bark of the trunk and twigs. According to our breeding records, the eggs hatched from 6—15 days in the various generations found. The larva maintains six to eight instars. As a general, the larval period lasted about 33—34 days, while the winter generation lasted as long as 137 days. The length of the pupal stage is 10—20 days. The adult life lasted 13 days at maximum. Natural enemies of this pest consist of: egg-parasites (ind.); Apanteles sp.; another braconid; the tachinid, Exorista japonica T.-T. (in larvae); and the ichneumonid Goryphus basilaris Holmgren (in pupae). Preliminary investigations on control were conducted. Sanitation of the environment, hand—picking or spraying with 666 on the appearance of the early instar larvae are very effective measures.

重阳木斑蛾是重阳木的一种最重要害虫。此虫在福建福州常间歇性猖獗发生为害,一年发生四代,一至三代严重害叶。以不同龄期的幼虫在枝干裂缝、木栓层下及粘叠的叶片间越冬,极少数化蛹越冬。冬季气温达8℃以上时,越冬幼虫仍能少量取食,无明显的仃育。成虫产卵于枝干皮下,卵期6—15天。幼虫共6—8龄,幼虫期33—34天(第1—3代)及137天(第4代,即越冬代);蛹期10—20天;成虫寿命长者13天。本文对各虫期形态和生活习性有较详细的记述。天敌有:卵寄生蜂;绒茧蜂Apanteles sp.和另一种茧蜂及日本追寄蝇Exorista iaponica T.-T.等两种寄蝇寄生于幼虫;横带沟姬蜂Goryphus basilaris Holmgren寄生于蛹。人工捕杀、清洁园地、保护天敌和喷撤六六六等农药,防治效果都很好。

Investigation of spatial distribution of the pupae, egg-masses and small larvae of Buzura suppressaria were conduced during 1983 at two areas in xinhuan county, Hunan province In one area the pset population dynamics were continuously at outbreak phase, and in the other at collapse one. By means ot several aggregation indeex, dates of pupae (39 plots) , egg-masses (30 plots) and small larvae (30 plots) fit mostly the patchness distribution, bisides a few plots with lowerst density of pupae...

Investigation of spatial distribution of the pupae, egg-masses and small larvae of Buzura suppressaria were conduced during 1983 at two areas in xinhuan county, Hunan province In one area the pset population dynamics were continuously at outbreak phase, and in the other at collapse one. By means ot several aggregation indeex, dates of pupae (39 plots) , egg-masses (30 plots) and small larvae (30 plots) fit mostly the patchness distribution, bisides a few plots with lowerst density of pupae which fit possion distribition. A-high densities individual in a patch show some exclusive trend, these are in accordance with the habites of this insect. Based on the power funtion rela tionship between percentage of the trees with pupae (p) and the nubers of pupae per 100 trees (X) , the equation have been formed as

1982—1983年在新晃县调查了油桐尺蠖越冬蛹X(39块样地),卵块(30块样地)及小幼虫(30块样地)的分布型资料,用聚集度指标法及频次分布法进行检验。结果表明,除少数低密度的蛹样地符合泊松(随机)分布外,其余皆符合聚集分布。根据有蛹(卵块)株率与百株蛹(卵块)量的关系,导出了根据有蛹(卵株率查百株蛹(卵块)数的公式,可在实践中试用。对蛹期防治指标亦作了讨论。 油桐尺蠖(Buzura suppressaria Guenee)是油桐、油茶及茶叶的重要害虫。1982—1983年作者在湖南新晃县波洲公社红岩油桐林场及大湾罗公社毛溪大队(两地相距50多公里)研究了1982年越冬蛹,1983年第一代卵、2—3龄幼虫的空间分布型。

This paper reports on the biological characteristics of the Chinese bamboo tussock moth, Pantana sinica Moore, one of the most important insect pests of bamboos, as well as on its distribution, morphology, host and control. The bamboo tussock moth produces 3 generations per year in Zhejiang province. It hibernates as a pupa within its cocoou, and deposits its eggs on the bamboo culm at a height 1m above the ground. The first generation larvae emerge from the last 10 days of April to that of May, and begin...

This paper reports on the biological characteristics of the Chinese bamboo tussock moth, Pantana sinica Moore, one of the most important insect pests of bamboos, as well as on its distribution, morphology, host and control. The bamboo tussock moth produces 3 generations per year in Zhejiang province. It hibernates as a pupa within its cocoou, and deposits its eggs on the bamboo culm at a height 1m above the ground. The first generation larvae emerge from the last 10 days of April to that of May, and begin to feed on the bamboo leaves from the first 10 days of May to mid-July; for the 2nd and 3rd generations this period starts from the first 10 days of July to that of September, and from the first 10 days of September to that of December respectively. It has been proved through observation that the number of larval instars varies from 5-7 for the 1st and 3rd generations and for the 2nd generation from6-8. Calculation shows that the larvae in the last two stadia eat a large proportion of the leaves, making up to 78,9--87.2% of the total. A high correlation has also been found between the quantum of the leaves eaten by a larva and the sex of the adult which, later on, the larva develops into. The total amount of the leaves a female eats is 1.7-2 times as much as that eaten by a male. Infestation usually takes place first in the valley, then extends to the slops and hilltops.

华竹毒蛾(Pantana sinica Moore)是竹类重要害虫之一,分布在我国南方,已知为害刚竹属内10个竹种。1973年湖南毛竹林被害面积达6万余亩。该虫在浙江一年发生三代,以蛹越冬,幼虫为害期分别为5月上旬到7月中旬;7月上旬到9月上旬;9月上旬到12月上旬。幼虫第一、三代5—7龄;第二代6—8龄。幼虫期取食量为90—200平方厘米,雌虫比雄虫多食叶1.7—2.0倍。

 
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