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
   peach fruit borer 的翻译结果: 查询用时:0.18秒
图标索引 在分类学科中查询
所有学科
植物保护
园艺
更多类别查询

图标索引 历史查询
 

peach fruit borer
相关语句
  桃小食心虫
     CYTOGENETIC STUDY ON THE STERILITY OF PEACH FRUIT BORER Carposina nipponensis ( Wals.)
     桃小食心虫Carposina nipponensis(Wals·)辐射不育的细胞遗传学研究
短句来源
     In 1987, serious damage of peach fruit borer Carposina sasakii Matsumura on plum fruits was found in Fujian Province for the first time, it was a new record of orchard pest in this province.
     1987年福建首次发现桃小食心虫(Carposinasa sakii Matsumura)严重蛀害李果,是福建果树害虫新记录。
短句来源
     The effect of constant temperature and humidity on fecundity of peach fruit borer,Carposina niponensis Walsingham,was investigated in laboratory condition.
     在实验室内观察研究桃小食心虫Carposina niponensis Walsingham越冬代成虫在一系列温度和湿度下的生殖能力。
短句来源
     STUDIES ON DISPERSAL OF STERILE PEACH FRUIT BORER(Carposina nipponensis Wals.) BY USING MARK-RELEASE-RECAPTURE TECHNIQUE
     采用染色标记法研究不育桃小食心虫(Carposina nipponensis Wals.)扩散规律
短句来源
     THE APPLICATION OF STEINERNEMA FELTIAE AGRIOTES AGAINST PEACH FRUIT BORER
     芜菁夜蛾线虫在防治桃小食心虫上的应用
短句来源
更多       
  “peach fruit borer”译为未确定词的双语例句
     The peach fruit borer, Carposina sasakii Matsumura complex, is an important fruit pest in China, Korea, and Japan.
     桃蛀果蛾复合体Carposina sasakii Matsumura complex危害多种果树,是重要的果树害虫。
短句来源
     ON THE SCIENTIFIC NAME OF THE PEACH FRUIT BORER
     桃蛀果蛾学名的更正
短句来源
     The peach fruit borer, Carposina sasakii Matsumura complex, is an important fruit pest in China and East Asia. It can cause severe damage on apple, common jujube, hawthorn, peach, apricot, and plum, etc.
     桃蛀果蛾复合体Carposina sasakii Matsumura complex是我国以及东亚地区重要的果树害虫,严重危害苹果、大枣、山楂、桃、杏、李等多种果树的果实。
短句来源
     3. In Luochuan district,the capacity occurring of Peach fruit borer and Adoxophyes orana Fischer von Roslerstamm are not too many,harm not heavily,but we can not ignore to supervise them,we should strictly to observe them,the circumstances occurs,and guard against suffering from in coming .
     3. 在洛川地区,棉褐带卷蛾和桃蛀果蛾的发生量不大、危害不重,但也不能忽视对其监控,要严格观察其发生情况,防患于未来。
短句来源
     This, paper is the first report on the efficacy of a Chinese produced Bacillus thuringiensis (Bt) wettable powder (16,000 IU) for the control of the peach fruit borer, Carposina niponensis.
     本文报道国产高孢子含量Bt(1.6×10~4IU)可湿性粉剂对挑小食心虫初孵幼虫的室内和田间药效,及其与低浓度化学农药混用的试验结果。
短句来源
更多       
  相似匹配句对
     Effect of PGZCJ on peach fruit
     苹果增产菌对桃果实的影响
短句来源
     The peach fruit (Primus persica (L.)
     本论文以大久保桃(Prunus persica(L.)
短句来源
     Fruit
     水果
短句来源
     ON THE SCIENTIFIC NAME OF THE PEACH FRUIT BORER
     桃蛀果蛾学名的更正
短句来源
     REVIEW OF THE ADVANCES OF THE PEACH FRUIT-BORER
     桃小食心虫的研究概况
短句来源
查询“peach fruit borer”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
没有找到相关例句


1. The percentage of diapause under field conditions. The peach fruit borer, Carposina niponensis Walsingham, has a complete firstgeneration and a partial second generation annually in Liaoning province, the majorapple-growing district in China. It passes the winter as full-grown larva encased in athick, elliptical cocoon under ground. A record of two years'(1956--1957) observation in Hsiung-yao (40°10′N) on theoccurrence of diapause is shown in table 1. The data show that the later the larvaeemerged from...

1. The percentage of diapause under field conditions. The peach fruit borer, Carposina niponensis Walsingham, has a complete firstgeneration and a partial second generation annually in Liaoning province, the majorapple-growing district in China. It passes the winter as full-grown larva encased in athick, elliptical cocoon under ground. A record of two years'(1956--1957) observation in Hsiung-yao (40°10′N) on theoccurrence of diapause is shown in table 1. The data show that the later the larvaeemerged from the fruits, the greater the proportion of the larvae entering diapause.Larvae that emerged before July 21 never entered diapause; of those that emerged fromJuly 26 to August 16 not over 20 per cent had gone into diapause; those that emergedfrom August 16 to August 20 had a diapause rate increasing sharply up to 80 per cent;and those that emerged in end of August all entered diapause. 2. Effect of the length of daily photoperiod on the induction of diapause. The influence of the photoperiod on the induction of diapause is dominant at me-dium temperatures. Almost 100 per cent of the larvae grown at medium temperatures(25°and 27℃.), with 13 hours illumination per day, entered diapause; but only a smallproportion of the larvae grown at the same temperature, with 15 hours illumination perday, entered diapause (usually not over 10 per cent). Table 2 shows that most of the larvae grown under complete darkness entered dia-pause. The only exception to this is the result concerning larvae of the first generationat 27℃. The same table shows that as the photoperiod increased from 15 hours up to 17 and24 hours per day, the percentage of the larvae entering diapause increased accordingly. From the results shown in table 2, it is apparent that the critical photoperiod liesbetween 13 and 15 hours of illumination per day. 3. The effect of temperature on diapause. For the larvae grown in complete darkness, the effect of temperature in inducingdiapause is shown in table 3. Experimental data show that when the larvae were heldat 15°, 18°, 21°, 23° and 25℃., almost 100 per cent of them entered diapause; whenthe temperature was over 25℃., the proportion entering diapause decreased sharply; andunder 34℃., the percentage of diapause dropped to 9 per cent. On the other hand,when the larvae were held at 12℃., about one third of them would not enter diapause.Experimental data again show that the effect of the duration of illumination per day on the induction of diapause of the larvae which were held at low temperatures (18°to 22℃.) were practically the same as at medium temperatures (25° and 27℃.). 4. The relationship between the length of photoperiod and diapause undernatural conditions. According to an analysis of the relationship between the change of day length whichoccurred in the larval growth season of the first-generation and the proportion of larvaeentering diapause at different dates, it is concluded that under natural conditions, thelength of day plays a dominant role in determining which individuals of the full fedlarvae will enter diapause. The average atmospheric temperature was 23℃. at thattime (Table 5); and it seemed to have no effect on the induction of diapause. Thecritical photoperiod for the induction of diapause in natural conditions will be 14:50 to14:13 hours of light per day (Table 6). Figure 3 shows the change of day length (hours) and date of critical photoperiodin the first-generation larval growth season at Hsiung-yao. Owing to the fact that theincidence of diapause in the first-generation was markedly influenced by the timing ofthe light-sensitive larval stage in relation to the critical date, figure 3 also illustratesa comparison between the first-generation oviposition periods of three different years.In the year 1956, nearly all the first-generation eggs were deposited before the criticalphotoperiod date, probably only a small proportion of the first-generation larvae enteringdiapause. Accordingly, a greater number of the second-generation eggs were laid whencompared with the first-generation (1:

桃小食心虫在辽南苹果产区为二化性兼性滞育害虫。据在熊岳的观察,第一代幼虫通常于7月下旬开始脱果,凡脱果日期愈晚的幼虫,进入滞育的百分率愈高。在中间温度下,滞育的发生决定于幼虫发育期间昼夜光照时数:在每日光照13小时下发育时,全部滞育,在15小时下发育的,基本不滞育。根据田间第一代幼虫发育期间温度和日照时数的变化与幼虫滞育百分率进度的关系推算结果,第一代幼虫发生期间的温度是在光周期反应的适温范围内,故温度不是引起滞育的主要因素。推算出来的临界光周期位于14小时50分—14小时13分之间(在熊岳出现该光周期的日期为7月21号左右)。最后,讨论了田间第一代幼虫发生期早晚与滞育百分率及第二代发生量的关系:在春季干旱的年份(如1955、1957),由于第一代幼虫发生期被推迟,滞育百分率提高,从而减少了当年第二代的发生量;相反,在第一代幼虫发生期较正常年份提前的1956年,该代的滞育百分率降低,从而相应增加了第二代的发生量。

The entomopathogenic nematode,Taishan No. 1, Heterorhabditis sp.(Heterohabditidae) was isolated from the overwintering larvae of the peach fruit-borer, Carposina niponensis walsingham and from the soil of apple orchards in Shandong province in May 1984. The life cycle of this nematode was found containing two generations, they were oviparous generation(short generation) and ovoviviparous generation(lon ggeneration). This parasitic nematode associated with the bacteria Xenorhabdus sp.,which...

The entomopathogenic nematode,Taishan No. 1, Heterorhabditis sp.(Heterohabditidae) was isolated from the overwintering larvae of the peach fruit-borer, Carposina niponensis walsingham and from the soil of apple orchards in Shandong province in May 1984. The life cycle of this nematode was found containing two generations, they were oviparous generation(short generation) and ovoviviparous generation(lon ggeneration). This parasitic nematode associated with the bacteria Xenorhabdus sp.,which were released after the parasites entering the body cavity of the insects. The insect hosts were then be killed within 48 hours by septicaemia. The dead insects did appear red colour and bioluminescent,caused by the symbiotic bacteria. The Taishan No.1 nematode can be developed in artificial media. The mortalities of the overwintering larvae of the peach fruit-borer infested by the Taishan No. 1 nematode were much higher than by Neoaplectana feltiae. In the present paper, the life cycle, morphology, symbiotic bacteria development in artificial media and the infestation of the overwintering larvae under the laboratory conditions of this species were investigated.

昆虫病原线虫泰山Ⅰ号是小杆目异杆线虫科异杆线虫属(Heterorhabditis)线虫。1984年5月,自山东泰安苹果园土壤及桃小食心虫(简称桃小)(Carposina niponensis Walsingham)圆茧分离获得。在长江以北地区分离到这种昆虫寄生性线虫还未见有报道。其生活史包括两个世代,即卵生世代(短世代)和卵胎生世代。25℃温度下完成整个生活史需9天时间。它与一种无色杆菌(Xencrhabdus)互惠共生,线虫进入昆虫体腔便释放出其共生菌,引起昆虫败血病,48小时内导致寄主死亡。尸体变红并发出较强的生物光。本文主要报道其生活史、形态、共生菌、人工繁殖方法及对桃小的致死效果。

The chromosomal aberration, its genetic effect and the structurally abnormal sperms Peach Fruit Borer ( PFB ) irradiated with substerilizing dose were described in this paper.The numbers of chromosome of PFB were n=31.The longest chromosome was 4.43±0.49 μ.The shortest one was 1.54±0.15μTotal chromosome lengh was 96.37±10.7.5μ.The variation rate of the chromosome was 83.6% in F1 generation including, several kind of aberration,such as fragments,chains, bridges etc.The main chromosomal rearrangement was...

The chromosomal aberration, its genetic effect and the structurally abnormal sperms Peach Fruit Borer ( PFB ) irradiated with substerilizing dose were described in this paper.The numbers of chromosome of PFB were n=31.The longest chromosome was 4.43±0.49 μ.The shortest one was 1.54±0.15μTotal chromosome lengh was 96.37±10.7.5μ.The variation rate of the chromosome was 83.6% in F1 generation including, several kind of aberration,such as fragments,chains, bridges etc.The main chromosomal rearrangement was reciprocal transloca-tion involving many chromosomes. It is the main factor of F1 generation with higher sterility than P generation that the radiation damage of chromosome can be inherited and strongly expressed in F1 generation. Because of the dominant lethal mutation of F1 generation leading to high rate of death, there was less chromosomal aberration in F2 generation. The variation rate was 12.5%.Another kind of aberration-micronucleus was observed in P, F1 and F2 generation.It agreed with the result of chromosomal analysis.The spermatozoal structure of PFB was similar to that of other lepi-dopterous species.Irradiation of newly emergence adults resulted in rupture of sperm, damage of axoneme configuration, change of number of axoneme and mitochondrialderivative. These genetic abnormalities of ultrastructure of sperm were inherited more intensely in F1 progeny, produced from the cross of P male adults with the irradiated females

本文研究了亚不育剂量对桃小食心虫Carposina nipponensis(Wals.)染色体的影响及其遗传效应,并对其精子结构变异进行了超微观察。结果表明,正常桃小食心虫染色体结构为漫散着丝点,其数目n=31。最长染色体为4.43±0.49μ,最短为1.54±0.15μ,总长度为96.39±10.75μ,长度变异范围S%=34.76。亚不育剂量(25kR)诱导的染色体变异结果表明,亲代(F。)的辐射损伤可传递到后代,F_1代变异率为83.6%,变异类型主要为“断片”、“桥”,“多着丝点体”等,而且易位染色体数目较多,从而导致F_1高度不育。F_2代畸变率降低,易位染色体数目也较少,育性得到部分恢复。亚不育剂量辐照能使桃小食心虫产生微核。微核测定法可作为衡量桃小食心虫细胞辐射变异的简易指标。 桃小食心虫精子的超微结构与鳞翅目其它昆虫相似,轴丝构型为(9)十9十2。亚不育剂量能使精子产生破裂、空泡、微核,轴丝构型异常,轴丝和线粒体衍生体数目及形态发生变化等,并在F_1代得到加强。

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