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mating
相关语句
  交配
    Biological Characteristics and Mating Behavior of Monochamus Alternatus Hope
    松褐天牛Monochamus alternatus Hope生物学特性和交配行为的研究
短句来源
    STUDIES ON MATING TYPE A_1 OF PHYTOPHTHORA CINNAMOMI RANDS IN CHINA
    中国樟疫霉A_1交配型的研究
短句来源
    DISTRIBUTION OF PHYTOPHTHORA SPECIES AND MATING TYPE IN EAST AND NORTHEAST CHINA
    华东、东北地区疫霉种的分布及交配
短句来源
    AN OBSERVATION STUDY ON BIOLOGICAL CHARACTERS AND MATING BEHAVIOR OF COLEOPHORA DAHURICA FLKV. ADULTS
    兴安落叶松鞘蛾成虫及交配行为的观察研究
短句来源
    The occurrence of potato late blight pathogen (Phytophthora infestans ) A_2 mating type in China
    中国发生马铃薯晚疫病菌(Phytopthora infestans)A_2交配
短句来源
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  交尾
    Single mating peaks were observed for 1-,6-and 7-day-old moths,while double mating peaks were observed for 2-to 5-day-old moths.
    1、6和7日龄成虫具有单个交尾高峰,2到5日龄成虫具有两个交尾高峰。
短句来源
    It took 28.63 ±6.90 s (N=33) for whole response, and 162.45±9.40 s (N= 33) for mating.
    雄蜂在交配过程中起主导作用,雄蜂发现雌蜂后发生抖动触角、拍动双翅等反应,直到成功交尾。 整个反应持续时间(28.63±6.90)s(N=33),交配持续时间(162.45±9.40)s(N=33)。
短句来源
    In ovipositing choice experiments of adult moths, the oviposition of most of mating female moths gave priority to health plants, and account for 82.3% to toatal oviposition .
    在成虫的产卵选择实验中,已交尾雌虫优先在健康植株上产卵,其产卵量占总产卵量的82.3%~92.8%。
短句来源
    Mating and oviposition take place on the 2nd day after emergence,with the oviposition period of 6.4~7.5 days and the average fecundity ranging from 19.5 to 21.7,with 42 as the maximum.
    成虫羽化的第二日交尾、产卵,产卵期为6.4~7.5天,产卵量为19.5~21.7粒,最多42粒,卵产于豆苗胚轴皮层内。
短句来源
    Over 95% of the adults take place mating at 5:00—8:00 in the morning.
    95%以上成虫集中于早晨5——8时进行交尾
短句来源
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  “mating”译为未确定词的双语例句
    About 85.66% of alates were killed by the dragonflies during mating flying at a height level about 5m from the ground.
    距离地面5 m以下,蜻蜓对婚飞红火蚁的捕食率平均为85.66%,捕食行为主要发生在距离地面3 m以下。
短句来源
    Studies on Competition and Mating Behavioural Interactions between the B Biotype and the Non-B ZHJ-2 of Bemisia Tabaci (Homoptera: Aleyrodidae) in Zhejiang, China
    B型烟粉虱与本地ZHJ-2烟粉虱的竞争及其行为机制
短句来源
    Biparental mating between Escherichia coli S17-1( λ -pir) that carried plasmid pUT/acz and A.
    携带有转座子质粒pUTlacZ的大肠杆菌S17-1(λ-pir)与不产生acyl-HSLs信号的A.
短句来源
    Two isolates belonging to opposite mating type, 01-12 and 01-15, were selected as parent isolates to induce ascospore production of Setosphaeria turcica, and 79 single ascospores were isolated.
    本文以01-12、01-15为亲本菌株进行有性杂交,共分离得到79个单子囊孢子后代。
短句来源
    Mating type gene of 234 isolates is MAT1-1 and other 174 isolates is M4T1-2.Three standard strains, KA3(MAT1-1),KA9(MAT1-2) and Z46(MATl-2) ,were utilized in the fertility test.
    选用标准菌株KA3(MAT1-1)、KA9(MAT1-2)和Z46(MAT1-2)测定了这些菌株的育性。
短句来源
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  mating
This is consistent with their eclosion, mating and oviposition periods.
      
Some co-evolutionary interactions, therefore, may exist between the spatial structure and the mating behavior of clonal plants.
      
It is postulated that these genetic differences were due to the bitterlings' mating choice mechanism, the prozygotic isolation.
      
(4) In wel1-bred mating or heredity management, mating Epinephelus of the same branch should be avoided.
      
The hypothesis of immune testing of partners-coordinated adaptations and changes in mating preferences
      
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The soybean aphid, Aphis glycines Matsumura is widely distributed in the soybean growingregions of China, its damage has done severely in Kirin, Liaoning, Heilungkiang, andInner Mongolia. The host plant of this aphid is quite limited, besides the cultivated soybean, sofar only the wild soybean, Glycine Benth forma lanceolate Makino and Rhamnus davuricusPall. were found in Northeast China. Three periods of the damage on soybean can be receg-nized: 1) From seedling stage to blooming stage of soybean, the aphid...

The soybean aphid, Aphis glycines Matsumura is widely distributed in the soybean growingregions of China, its damage has done severely in Kirin, Liaoning, Heilungkiang, andInner Mongolia. The host plant of this aphid is quite limited, besides the cultivated soybean, sofar only the wild soybean, Glycine Benth forma lanceolate Makino and Rhamnus davuricusPall. were found in Northeast China. Three periods of the damage on soybean can be receg-nized: 1) From seedling stage to blooming stage of soybean, the aphid population reaches its highestpeak. Its colonies concentrate on tender leaves and branches.2) In late July, the top growing pointof soybean plant stops to grow, the aphid colonies alter their positions from the top to the middleor the lower part of the plant and feed on the underside of soybean leaves. At that time, minute formof aphids appears and its population usually turns down quickly. 3) From late Augustto early September, the aphid colony begins to multiply rapidly again. Afterwards, it migrates backto the overwintering host, Rhamnus davuricus. By mating of the sexuales, eggs are laid to passwinter. A total of 15 generations developed on soybean and all together 18 generations in a year. Some aspects in relation to the fluctuations of aphid population are mentioned: 1)The norm ofoverwintering eggs and also the population size in the soybean seedling stage are directly related to thefuture size of the aphid colony. 2) During the period from late June to early July, the optimalrange of temperature (22--25℃) and humidity (below 78%) are found combinatively favoringthe aphid development. 3) After late July, the growth of soybean becomes depressing, the nutritioussupply for the aphid becomes correspondingly poor, the population goes to be greatly decreased. The results of laboratory and field tests reveated that 0.5% γ 666 dust, 6% γ wettable 666(1:300--400), E605 (1:15000), tobacco leaf solution (1:100) and seed coating with 20% γ 666dust are very effective to control the soybean aphids.

大豆蚜在我国主要大豆产地都有分布,以吉、辽、黑和内蒙自治区的一部分为害最重,为猖獗发生区。大豆蚜的寄主植物除大豆外,还有野生大豆和鼠李,由调查和接种试验的结果,肯定了大量地分布在东北三省的鼠李为越冬寄主。 大豆蚜的全年发生周期和为害特点在大豆上共分三个阶段:1)从侵害豆苗起到7月中旬大豆盛花期止,是大豆蚜的盛发时期,占有总蚜量的50—70%,群聚于豆株上部幼嫩的枝叶上,这时期的为害,对大豆的生长威胁最大;2)到7月下旬,由于大豆生长点停止生长,大豆蚜即从群聚于植株上部发生转移到分散在中、下部的叶片背面,并同时出现小型蚜,生长迟缓,为田间大豆蚜为害的消退阶段;3)8月下旬结荚后期到9月上旬黄熟期,重新开始了大豆蚜的后期繁殖阶段,随即在秋末季迁回鼠李,经雌雄交配产卵越冬,秋季雄性蚜和雌性产卵蚜分别发生在不同的寄主上,雌性发生在鼠李上,雄性发生在大豆上。全年在大豆上共繁殖15代。 根据大豆蚜的生活规律和几年来田间消长规律并结合几年的气象资料综合分析的结果,初步得出大豆蚜的发生消长规律和其影响因子:1)上年越冬量及早期田间蚜量大,因而造成了苗期大发生;2)6月下旬至7月上旬的旬平均温度在22—25℃,相对湿度在78%...

大豆蚜在我国主要大豆产地都有分布,以吉、辽、黑和内蒙自治区的一部分为害最重,为猖獗发生区。大豆蚜的寄主植物除大豆外,还有野生大豆和鼠李,由调查和接种试验的结果,肯定了大量地分布在东北三省的鼠李为越冬寄主。 大豆蚜的全年发生周期和为害特点在大豆上共分三个阶段:1)从侵害豆苗起到7月中旬大豆盛花期止,是大豆蚜的盛发时期,占有总蚜量的50—70%,群聚于豆株上部幼嫩的枝叶上,这时期的为害,对大豆的生长威胁最大;2)到7月下旬,由于大豆生长点停止生长,大豆蚜即从群聚于植株上部发生转移到分散在中、下部的叶片背面,并同时出现小型蚜,生长迟缓,为田间大豆蚜为害的消退阶段;3)8月下旬结荚后期到9月上旬黄熟期,重新开始了大豆蚜的后期繁殖阶段,随即在秋末季迁回鼠李,经雌雄交配产卵越冬,秋季雄性蚜和雌性产卵蚜分别发生在不同的寄主上,雌性发生在鼠李上,雄性发生在大豆上。全年在大豆上共繁殖15代。 根据大豆蚜的生活规律和几年来田间消长规律并结合几年的气象资料综合分析的结果,初步得出大豆蚜的发生消长规律和其影响因子:1)上年越冬量及早期田间蚜量大,因而造成了苗期大发生;2)6月下旬至7月上旬的旬平均温度在22—25℃,相对湿度在78%以下时,则极有利于田间大豆蚜的发育和繁殖,即使早期蚜量少,由?

Following the report made in 1958, continuous studies were carried on during, 1959--1961in the cotton growing regions of Hupei, Honan, Yunnan and some other provinces. This papermainly deals with the following aspects: geographical distribution of the generations, activities inthe period of late autumn to next spring, different nutritional conditions in relation to develop-ment, selection of host plants by moths, some characteristic habits of adult and larva, some moreimportant factors of outbreak, and some...

Following the report made in 1958, continuous studies were carried on during, 1959--1961in the cotton growing regions of Hupei, Honan, Yunnan and some other provinces. This papermainly deals with the following aspects: geographical distribution of the generations, activities inthe period of late autumn to next spring, different nutritional conditions in relation to develop-ment, selection of host plants by moths, some characteristic habits of adult and larva, some moreimportant factors of outbreak, and some key points of control. The generations produced in different regions may be classified into four belts: 1. Three-generation-belt——localized at 40°N northword; 2. Four-generation-belt——between 32--40°N; 3Five-generation-belt——25—30°N; 4. Six-generation-belt——generally resided at 25°N southword.There are a few instances of seven generations. Of adult and larval development, different results were obtained from different nutritional con- ditions. When larvae fed with the reproductive organs of cotton plant, their growth rate wasfaster, mortality lower and pupal weight also heavier. The food of adult stage is very important to its fecundity. The highest fecundity was foundwhen the moths fed with pollen of cotton flower and 10%. water diluted honey. However, 10—30% cane suger solution was also good. It seems that the moths are highly selective in visiting plants. They visit onions for takingfood from the onion flowers and peas for laying eggs only. The cotton plant is an importanthost for egg laying, but not a favorable food plant for the adult. On the other hand, the sunflower is a good food plant, for adult but not a favorable host for oviposition. There are three main times of adult flight. In the evening, about 19:30—20:30 PM, theadults fly for feeding and oviposition. Mating flight was found at about 1:30—4:00 AM. Atdawn, it was very inactively. Some points of larval habits are needed to mention: The egg hatches mostly at 12:00--18:00PM. The molting period is mostly at night. There is a resting period before molting. The restingperiod of larva becomes longer following its instar increases. The larva always molt outside theboll, and after molting, it usually bores into a new boll to feed which takes place ordinarily at5:30--12:00 AM. The third to sixth instar larvae possess a very large feeding capacity, the averagetotal is about 22.3 squares, flowers and bolls. The basic overwintering pupal population is closely related to the population of first generationin the next spring. The amount of rainfall directly effects the population of various generationsof cotton bollworms. Generally, when the annual amount of rainfall in the Yellow river cottoncultivating region is higher than ordinary year, or when the amount of rainfall in Yangtze riverregion is lower than ordinary year, and the relative humidity of both regions usually keeps around80% which will then very favorable to the cotton bollworms. Storm may wash off and kill theeggs and the young larvae. Due to rainfall in the pupal stage, soil contains too much water whichis unfavorable to the pupae and also to the emergence of moths. According to the various environ-mental conditions, the population of the cotton bollworm in Yellow river region maybe classified into four types: 1. Up grade type——population gradually increases from the firstto the last generation. 2. Down grade type——population decreases in each 3. Midhump type——The highest peak locates in the middle generation. 4. Saddle type——The population of the middlereaches the lowest and much higher at both ends. Besides the chemical control, some other aspects are considered more important in checkingthe population of cotton bollworms. They are the elimination of overwintering pupae by meansof various methods, the destruction of honey producing flower plants in spring in order to elimi-nate the food sources of adults, the attraction of moths by means of different kinds of light andalso the tree stick bundle method, etc.

继续1958年棉铃虫研究工作报告之后,1959—1960年又进一步在湖北、河南和云南等省作了研究,本文主要包括棉铃虫的世代分布带,晚秋、冬春活动情况,不同饲料对生长发育的影响,成虫对寄主植物的选择,成虫和幼虫活动的规律性,大发生的特点和防治关键。 其发生世代大致可分四个地理带:1.40°N以北,约发生3代;2.32-40°N是4代区;3.25-32°N是5代区;4.25°N以南一般6代,个别地区7代。如化蛹后5天以上其眼域外缘的4个小斑点没有变化,即为休眠蛹。 不同食料条件对成虫和幼虫生长发育影响很大。幼虫取食植物的繁殖器官,营养良好,则死亡率低、生长快、蛹较重、成虫繁殖力也高。成虫补充营养不同,其产卵量有显著差异,喂以棉花花粉加10%蜂蜜水产卵最高,单喂10—30%蔗糖水也很好,蔗糖太浓或单喂各种花产卵都降低,喂以植物营养器官则产卵很少或不产卵。 成虫对不同寄主植物有选择性。可分为取食寄主、产卵寄主、取食兼产卵寄主。如大葱、洋葱等则仅取食而不产卵;而豌豆等是产卵寄主,未见成虫取食;棉花等以产卵为主;向日葵等则以取食为主,产卵较少。成虫产卵对棉株生长势也有选择,一般棉株生长茂盛,颜色浓绿、组织幼嫩、蕾、花和嫩...

继续1958年棉铃虫研究工作报告之后,1959—1960年又进一步在湖北、河南和云南等省作了研究,本文主要包括棉铃虫的世代分布带,晚秋、冬春活动情况,不同饲料对生长发育的影响,成虫对寄主植物的选择,成虫和幼虫活动的规律性,大发生的特点和防治关键。 其发生世代大致可分四个地理带:1.40°N以北,约发生3代;2.32-40°N是4代区;3.25-32°N是5代区;4.25°N以南一般6代,个别地区7代。如化蛹后5天以上其眼域外缘的4个小斑点没有变化,即为休眠蛹。 不同食料条件对成虫和幼虫生长发育影响很大。幼虫取食植物的繁殖器官,营养良好,则死亡率低、生长快、蛹较重、成虫繁殖力也高。成虫补充营养不同,其产卵量有显著差异,喂以棉花花粉加10%蜂蜜水产卵最高,单喂10—30%蔗糖水也很好,蔗糖太浓或单喂各种花产卵都降低,喂以植物营养器官则产卵很少或不产卵。 成虫对不同寄主植物有选择性。可分为取食寄主、产卵寄主、取食兼产卵寄主。如大葱、洋葱等则仅取食而不产卵;而豌豆等是产卵寄主,未见成虫取食;棉花等以产卵为主;向日葵等则以取食为主,产卵较少。成虫产卵对棉株生长势也有选择,一般棉株生长茂盛,颜色浓绿、组织幼嫩、蕾、花和嫩叶多则产卵多,反之则少。 成虫昼夜活动有一定规律性,从飞翔看来,可分为三个主要阶段:黄

Field and laboratory investigations on the overwintering forms of five species ofaphids, the cotton aphid, Aphis gossypii Glover, the English grain aphid, Macrosiphumgrandrium (Kirby), the turnip aphid, Rhopalosiphum pseudobrassicae (Davis), the greenpeach aphid, Myzus persicae (Sulzer), and the black citrus aphid, Toxoptera aurantii(Fonsc.) were carried out during 1955--1962 in Chungking, Szechuan. Under natural conditions, the cotton aphids lay overwintering eggs on certain de-ciduous woody plants, such as...

Field and laboratory investigations on the overwintering forms of five species ofaphids, the cotton aphid, Aphis gossypii Glover, the English grain aphid, Macrosiphumgrandrium (Kirby), the turnip aphid, Rhopalosiphum pseudobrassicae (Davis), the greenpeach aphid, Myzus persicae (Sulzer), and the black citrus aphid, Toxoptera aurantii(Fonsc.) were carried out during 1955--1962 in Chungking, Szechuan. Under natural conditions, the cotton aphids lay overwintering eggs on certain de-ciduous woody plants, such as the cotton-rose, Hibiscus mutabilis L., and the shrubbyalthaea, Hibiscus syriacus L. This species, however, will remain in parthenogenetic formsthoroughout the winter season on the herbaceous plant, such as the hollyhock, Althaearosea (L.). The English grain aphid, the turnip aphid and the black citrus aphid gene-rally continue their parthenogenetic generations in winter on their particular host plants.It seems more complicate in the case of the green aphid, those bred on winter growingvegetable crops, such as the various species of crucifers, the lettuce and spinach, usuallyreproduce asexually in winter; but a few sexuparae, sexual females and males may alsoappear on peach leaves. As the sexual females would not lay any overwintering eggwithout mating, and the males usually appear later on peach tree than the sexual females,hence the females are usually incapable of laying eggs before the falling of the peachleaves. Under experimental conditions, when the turnip aphid bred on old yellowing leavesof unhealthy plants of rape at a certain low temperature would produce a few sexualfemales and eggs, but no sexual male was observed. Some results were obtained fromfield investigations on the Chinese cabbage. The English grain aphid when bred arti-ficially on ears of wheat plants, which were sown early in August and reached headingand milky stage early in winter, produced a few males, but no sexual female or eggwas observed. Insectary breeding tests proved that inoculation of the cotton aphids ontohollyhock from field cotton, cotton-rose and shrubby althaea produced parthenogeneticoffspring; when the cotton aphids inoculated onto shrubby althaea twigs, cultured intap water, produced sexual offspring. These results were quite similar to those obtainunder natural conditions. The writer considers that the temperature, the photoperiod and the kinds and growthconditions of host plants will bring a combined effect on the reproduction of sexualforms in aphids, but the effect will be various in different species. Therefore, in thesame locality, different species of aphids may have different overwintering forms becauseof their different reactions to the environmental factors. Moreover, in one districtwhere the environmental conditions are fundamentally alike, under a definite low tem-perature, a species of aphid may either reproduce parthenogenetically or produce sexualforms in winter, depending essentially upon the different nutrient conditions in the dietobtainable by the species from its host plants.

在重庆地区的自然条件下,棉蚜Aphis gossypii Glover在冬季既可以在落叶木本植物如木芙蓉Hibiscus mutabilis L.、木槿 Hibiscus syriacus L.上产生两性世代的雄蚜和产卵雌蚜,并产卵过冬;也可以在宿根草本植物如蜀葵 Althaea rosea(L.)上继续以孤雌胎生世代的有翅或无翅胎生雌蚜繁殖过冬。麦长管蚜 Macrosiphum granarium(Kirby)、菜缢管蚜 Rhopalosiphum pseudobrassicae(Davis)和桔二岔蚜Toxoptera aurantii(Fonsc)通常都继续以孤雌胎生世代繁殖过冬。桃蚜 Myzus persicae(Sulzer)在十字花科蔬菜、莴笋Lactuca sativa var.angustana Irish、菠菜 Spinacia oleracea L.等冬季作物上可以继续营弧雌胎生世代繁殖,但在桃树上Prunus persica Stokes 可以出现少数两性世代的产卵雌蚜和雄蚜。由于雄蚜的出现时期较晚,将近在落叶以前,而产卵雌蚜不经交配通常均不能产卵,因此在桃树落叶前产卵雌蚜常未及产卵而随...

在重庆地区的自然条件下,棉蚜Aphis gossypii Glover在冬季既可以在落叶木本植物如木芙蓉Hibiscus mutabilis L.、木槿 Hibiscus syriacus L.上产生两性世代的雄蚜和产卵雌蚜,并产卵过冬;也可以在宿根草本植物如蜀葵 Althaea rosea(L.)上继续以孤雌胎生世代的有翅或无翅胎生雌蚜繁殖过冬。麦长管蚜 Macrosiphum granarium(Kirby)、菜缢管蚜 Rhopalosiphum pseudobrassicae(Davis)和桔二岔蚜Toxoptera aurantii(Fonsc)通常都继续以孤雌胎生世代繁殖过冬。桃蚜 Myzus persicae(Sulzer)在十字花科蔬菜、莴笋Lactuca sativa var.angustana Irish、菠菜 Spinacia oleracea L.等冬季作物上可以继续营弧雌胎生世代繁殖,但在桃树上Prunus persica Stokes 可以出现少数两性世代的产卵雌蚜和雄蚜。由于雄蚜的出现时期较晚,将近在落叶以前,而产卵雌蚜不经交配通常均不能产卵,因此在桃树落叶前产卵雌蚜常未及产卵而随落叶从桃树上消失。从接种饲养试验的结果证明:麦长管蚜在提早至8月播种,至冬季已进入乳熟期的小麦Triticum aestivum L.穗上,可以产生少数雄蚜,但未见产卵雌蚜。菜缢管蚜在生长衰弱的油菜 Brassica napella Choix的黄脚叶上,可以产生少数产卵雌蚜及卵,但未见雄蚜。在田间瓢儿白Brassica chinensis var

 
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