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colletotrichum
相关语句
  炭疽菌
    ROLE OF APPRESORIA IN LATENT INFECTION OF CITRUS LEAVES BY Colletotrichum gloeosporioides
    炭疽菌(Colletotrichum gloeosporioides)附着胞在柑桔叶片潜伏侵染中的作用
短句来源
    Genetic diversity of 114 isolates of Stylosanthes spp of Colletotrichum gloeospohoides in Hainan, Gunagdong and Guangxi was analyzed by use of random amplified polymorphic DNA (RAPD) and 8 arbitrary 10-base oligonucleotide primers. The amplified fragments were 0.2-3.0 kb.
    利用8个随机引物对来自海南、广东和广西的114个柱花草胶孢炭疽菌(Colletotrichum gloeosporioides)的菌株进行了随机扩增多态性DNA(RAPD)分析,扩增谱带大小0.2-3.0 kb。
短句来源
    Antagonistic bacteria Bacillus lichenifomus W10, Paenibacillus polymyxa W3 and Y2 could significantly inhibit the pathogens of apple ring rot (Physalospora piricola), citrus anthracnose (Colletotrichum gloeosporioides) and citrus blue mold (Penicillium italicum).
    本试验研究了拮抗细菌即地衣芽孢杆菌(Bacillus licheniformis)W10和多粘类芽孢杆菌(Paenibacillus polymyxa)W3、Y2对苹果轮纹病菌、柑桔炭疽菌和柑桔青霉病菌的抑制作用。
    RFLP analysis of ITS region of rDNA in the falcate spored species of Colletotrichum
    弯孢类炭疽菌rDNA ITS区的RFLP分析及分类研究
短句来源
    Studies on Infection Processes of Colletotrichum gloeosporioides and Activities of Chitinase and β-1,3-glucanase in Leaves of Cymbidium sinense
    墨兰炭疽菌侵染过程与几丁质酶、β-1,3-葡聚糖酶活性的变化
短句来源
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  刺盘孢
    et Schrenk according to its morphology,cultural properties and host range,and conidium stage as Colletotrichum gloeosporioides(Penz.)
    et Schrenk),分生孢子阶段为盘长孢状刺盘孢(Colletotrichum gloeosporioides(Penz.)
短句来源
    , Colletotrichum gloeosporioides (Penz.) Sacc.
    〕和胶孢刺盘孢〔Colletotrichum gloeosporioides (Penz .)
短句来源
    STUDIES ON COLLETOTRICHUM MUSAE(BERK. ET CURT.)ARX AND THE CHEMICAL CONTROL OF ANTHRACNOSE OF BANANA IN THE FIELDS
    香蕉刺盘孢及其所致香蕉炭疽病的化学防治
短句来源
    The results showing that the anthrocnose of Ophiopogon japonicus was caused by two species of colletotricum. They are Colletotrichum liliacearum (West.)
    结果表明,引致川麦冬炭疽病的病原菌有两种,即百合科刺盘孢(Colletotrichum liliacearum(West.)
短句来源
    The anthracnose and the leaf blight were the most prevalent and important diseases of cymbidium. After comparative studies, the anthracnose disease pathogen was indentified as Colletotrichum gloeosPorioides Penz.
    经过比较鉴定,认为兰花炭疽病的学名,根据V.Arx对刺盘孢属分种原则,应归在盘长孢状刺盘孢菌(Colletotrichum gloeosporioids Penz.)
短句来源
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  “colletotrichum”译为未确定词的双语例句
    Genetic Diversity Analysis of Colletotrichum Gloeosporioides from Stylo and Anthracnose Resistant Breeding
    柱花草炭疽病原菌遗传多样性分析及抗病育种研究
短句来源
    STUDIES ON THE CONTROL OF KENAF ANTHRACNOSE (COLLETOTRICHUM HIBISCI POLLACCI)
    洋麻炭疽病(Colletotrichum hibisci Pollacci)的防治研究
短句来源
    CONTROL OF COLLETOTRICHUM LAGENARIUM BY USING ANTIMYCOIN "120
    抗霉菌素“120”防治西瓜炭疽病试验
短句来源
    A Study on the Anthracnose of Japanesecornel Dogwood(Colletotrichum gloeosporioides)
    山茱萸炭疽病(Colletotrichum gloeosporioides)的研究
短句来源
    STUDIES ON CONIDIAL MORPHOLOGY OF COLLETOTRICHUM SP
    烟草低头黑病菌(COLLETOTRICHUM SP.)分生孢子形态研究
短句来源
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  colletotrichum
Study varieties of leguminous and cereal cultures were shown to contain endogenous inhibitors specific to proteinases of phytopathogenic fungi Fusarium, Colletotrichum, Helminthosporium, and Botrytis.
      
Extracellular alkaline proteinase of Colletotrichum gloeosporioides
      
Genetic variability within isolates of Colletotrichum lindemuthianum belonging to race 65 from the state of Minas Gerais, Brazil
      
Colletotrichum lindemuthianum, the causal agent of anthracnose in the common bean (Phaseolus vulgaris), presents a wide genetic and pathogenic variability that gives rise to complications in the development of resistant bean cultivars.
      
or Taming (local name) leaves was evaluated with four species of common pathogenic fungi e.g.Colletotrichum capsici (MTCC No.
      
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Сначала выл обнаружвн антракноз кенафа(Colletotrichum hibisci Pollacci)в1951г.на полях сельскохозяйственных опытных станциях Сюнжао и Ляоян в про-винции Ляонин и Гуньчжулинского института сельскохозяйственных наук в прови-нции Гирин,а в течение 1951-1953 гг.эта болезнь уже была широко распростра-нена во всех районах возделывания кенафа в провинции Ляонин,что принеслохозяйству губительный ущерб. Возбудитель антракноза кенафа способен перезимовать и в зараженных семе-нах и в зараженных тканях растений(стебепе,коробочке),которые...

Сначала выл обнаружвн антракноз кенафа(Colletotrichum hibisci Pollacci)в1951г.на полях сельскохозяйственных опытных станциях Сюнжао и Ляоян в про-винции Ляонин и Гуньчжулинского института сельскохозяйственных наук в прови-нции Гирин,а в течение 1951-1953 гг.эта болезнь уже была широко распростра-нена во всех районах возделывания кенафа в провинции Ляонин,что принеслохозяйству губительный ущерб. Возбудитель антракноза кенафа способен перезимовать и в зараженных семе-нах и в зараженных тканях растений(стебепе,коробочке),которые являютсяочагом заразного начала кенафа в следующем году.В полевых условиях Гуньчжу-лина продолжительность возбудителя антракноза кенафа длится не больше на 12месяцев,а в лабораторных условиях больше на 17 месяцев.Количество возбуди-теля в зараженных семенах,сохранившихся в лаборатрии,снизижается из года вгод,и погибает целиком через 31 месяца при сохранении. Опыт показывает,что для уничтожения сохраняющихся в пораженных семенахвозбудителей не дает полной эффективности,как сухое протравливание семян,так изамоченные семена препаратом,и что из способов обработки оказывается найбопееэффективным термическое протравливание.При термическом протравливании про-изводят следуюшим образом:семена предварительно злмачивают в холодной водепри температуре около 15℃ в течение 8 часов,после того семена переклады-вают в горячую воду при 52℃ в течение 10 минут или при 55℃ в течение 5минут,и таким образом,можно полносмью уничтожить возбудители в семенах. ??Такой способ не дает отрицательного влияния на всхожесть семян и на развитиевсходов кенафа.Однако,при предварительного замачивания семян в холоднойводе,необходимо перемешивать семена несколько раз и вылавливать ппывуюшие наповерхность воды семена,без чего невозможно попучить полный эффект обработки. В нашем институте был прекращен посев кенафа в1953 году,а с 1954 годавновь был начат посев здоровыми семенамн или протравленными семенами.В ме-чение последующих трех годов подряд сеют кенаф не наблюдают бопезни.Отсюдаследует,что после полного прекращения посева кенафа в течение двух годов в зара-женных районах,можно постепенно восстановить возделывание этой культуры путемсева здоровыми или протравленными семенами.

洋麻炭疽病(Colletotrichum hibisci Pollacci)于1951年在辽宁省熊岳、辽陽及吉林省公主嶺等地試驗場內开始發現,到1952—1953年則已在辽宁省所有洋麻栽培区流行,造成毀灭性的灾害。受病种子与組織(病秆,病果)內的病菌都可以越冬,成为次年的第一次發病来源。在公主岭的自然条件下,病菌生活力不超过12个月,在实驗室的条件下,約可存活17个月以上。貯藏在室內的带病种子中的病菌逐年减少,至31个月后,全部死亡。試驗証明:不論粉剂拌种或药液浸种对洋麻种子内寄藏的病菌沒有完全的杀菌效果。在各种种子处理方法中,以冷水温汤浸种为最有效。在室温下(約15℃左右),冷水預浸8小时,再浸入52℃温水中10分钟或55℃5分钟,即可全部消灭种子中的病菌,且对种子發芽及幼苗生育沒有影响。但在冷水預浸时,必須搅拌数次,捞尽漂浮的种子,否則不能得到完全的消毒效果。本所育种系試驗地洋麻在1953年停种一年后,于1954年开始,分別用已消毒的和无病种子播种,三年来已不再發病,故在病区徹底蚔謨赡旰?采用无病的或已消毒的洋麻种子,逐步恢复洋麻生产是可能的。

Cotton seeds collected from plants infected by Verticillium ablo-atrum were used for the purpose of studying seed transmission of the pathogen. Although verticilliate conidiophores had been observed occasionally under low-power microscope on the surface of the seeds plated on PDA in 1955, yet isolations of the organism failed due to the interference of several contaminants. Seeds were delinted in order to diminish the possibility of interference from lint-born contaminants. The materials were plated on different...

Cotton seeds collected from plants infected by Verticillium ablo-atrum were used for the purpose of studying seed transmission of the pathogen. Although verticilliate conidiophores had been observed occasionally under low-power microscope on the surface of the seeds plated on PDA in 1955, yet isolations of the organism failed due to the interference of several contaminants. Seeds were delinted in order to diminish the possibility of interference from lint-born contaminants. The materials were plated on different culture media such as PDA, acidified PDA, cotton meal agar and rice agar. All these plates failed to show verticillium colonies. Among the fungi obtained in these plates, Fusarium, Alternaria and Colletotrichum were the most frequent. Since both Verticillium albo-atrum and other fungi were harbored within the same seed, the difference of growth rates might be considered as an important factor involved in the difficulty of the isolations: Cultures of V. albo-atrum and Fusarium sp. were transferred simutaneously to PDA plates to test their growth rates. The diameter of their colonies were measured after incubation for 12 days under 22±1℃. Those of V. albo-atrum measured 2.8 cm., while the average of the latter was 9,3 cm. Interference of the fast-growers might render a slow-grower such as V. albo-atrum to be masked in the observations and to be depressed in the isolations. A method was developed to avoid the interference. The fundamental procedures of the method are outlined as follows. 1. Plating and observation. (1) Cotton seeds being delinted with commercial surphuric acid in order to avoid the interference from lint-born contaminants. (2) Delinted seeds being washed in a flask covered with wire gauze for 24 hours under running tap water in order to get rid of bacteria. Absorption of sufficient water during washing activates the hibernating mycelium. (3) Seeds being plated on 1.7% water agar instead of nutrient agar in order to diminish the growth of the fast-growers such as Fusaria and Alternaria. The plates being incubated under 22±1℃. for 15 days. (4) The plates being uncovered and observed directly under low-power microscope in order to observe the fungi undisturbed. 2. Isolation and preservation of the Verticillium cultures. (1) Verticilliate conidiophores being located under low-power microscope. (2) The tip of a flamed needle moistened with sterile agar being introduced within the microscopic field in order to fish the spores under focus. (3) Spore suspension being made by washing the needle in a 5 cc sterile water blank. (4) Dilution plates being made by placing 1 cc of the spore suspension in a petri dish and diluting with 10 cc of cotton stem agar. (5) The plates being observed under low-power microscope after incubation for 5—7 days at 22±1℃. (6) Verticillium colonies being locatad and a bit of the margin of a colony being transferred to PDA slant. (7) The slant cultures being flooded with sterile liquid paraffin after incubation for 7—15 days at 22±1℃. The cultures preserved with liquid paraffin were able to keep alived for 2 years. Seeds collected from the infected plants in 1955, 1956 and 1957 were studied. The percentages of seeds carrying Verticillium observed in these years were 39.8, 5.92 and 9.5% respectively. One of the representative single spore colonies obtained was identified as V. albo—atrum. Inoculation and reisolation tests showed positive results. Inspection of cotton seed samples collected from eight co-op farms in Shensi Province in 1958 showing that the percentages of seeds infected by verticillium ranged 3 to 23% with an average of 12.3%.

(1) 在陝西关中所采的黄萎病病株棉籽內部,常带有一些真菌和細菌,虽經用浓硫酸脫絨,这些菌类仍能从棉籽本身的組織內向培养基伸展惺庇玫捅剁R直接检查虽亦能見到輪枝菌从棉籽內露出,但由于其他菌类的生长速度較快,以致輪枝菌常被干扰,无从在洋菜上发展,故用一般方法很难分离和检查到棉籽所带的輪枝菌。(2) 用不含养分的水洋菜作为培养基时,杂菌的生长減弱,轮枝菌才能在基物上发展为菌落。又用流水冲洗法代替表面消毒,使棉籽吸收水分,同时也促使潛伏菌絲继續发展,并可冲去細菌。經試驗用上述两个步驟可以使棉籽所带的輪枝菌在水洋菜上形成菌落。結合低倍鏡直接检查法,可以較为方便地检查种籽带菌率。(3) 經初步拟定了一套检查方法和单孢子菌种分离法。惟应用时尚觉不够簡便,尚有待于进一步提高,特提出以供交流經驗。(4) 在1955—1957年的多次检查中,查得黄萎病病株棉籽带輪枝菌率为39.8%、5.9%及23.7%。在1958年初对大田种子进行检查,查得华阴等四县8个样品中带菌率为3%至23%,平均为12.3%。(5) 根据棉籽解剖培养結果,轮枝菌不仅存在于棉籽外部的短絨內,并且也存在于籽壳及籽仁上。(6) 从棉籽上分离到的轮枝菌特8号...

(1) 在陝西关中所采的黄萎病病株棉籽內部,常带有一些真菌和細菌,虽經用浓硫酸脫絨,这些菌类仍能从棉籽本身的組織內向培养基伸展惺庇玫捅剁R直接检查虽亦能見到輪枝菌从棉籽內露出,但由于其他菌类的生长速度較快,以致輪枝菌常被干扰,无从在洋菜上发展,故用一般方法很难分离和检查到棉籽所带的輪枝菌。(2) 用不含养分的水洋菜作为培养基时,杂菌的生长減弱,轮枝菌才能在基物上发展为菌落。又用流水冲洗法代替表面消毒,使棉籽吸收水分,同时也促使潛伏菌絲继續发展,并可冲去細菌。經試驗用上述两个步驟可以使棉籽所带的輪枝菌在水洋菜上形成菌落。結合低倍鏡直接检查法,可以較为方便地检查种籽带菌率。(3) 經初步拟定了一套检查方法和单孢子菌种分离法。惟应用时尚觉不够簡便,尚有待于进一步提高,特提出以供交流經驗。(4) 在1955—1957年的多次检查中,查得黄萎病病株棉籽带輪枝菌率为39.8%、5.9%及23.7%。在1958年初对大田种子进行检查,查得华阴等四县8个样品中带菌率为3%至23%,平均为12.3%。(5) 根据棉籽解剖培养結果,轮枝菌不仅存在于棉籽外部的短絨內,并且也存在于籽壳及籽仁上。(6) 从棉籽上分离到的轮枝菌特8号經初步鉴定系Verticillium albo-atrum Reinkeet Berth。(7) 特8号菌种經过接种試驗,确定其具有一定的致病力,并从再分离中获得該菌。(8) 棉籽是否能够传播黄萎病,似系一个检查方法問題。还希各方面进行测定,通过多次的检查和接种試驗始能充分确定。(9) 在分离的菌种中,除特8号菌种具有較深的菌落色泽外,还有一些菌种的顏色較淡,未須鑑定。棉籽所带的轮枝菌类型不一,还有进一步研究的必要。此外,棉籽內的輪枝菌和其他一些菌类究竟如何进入籽內,也有研究的价值。

In the course of investigations on various methods of seed treatments for the control of kenaf anthracnose (Colletotrichum hibisci Pollacci), it was found that the results of the conventional method of hot-water treatment, that is, presoaking in cold water for 3—8 hours, and then at 50—52℃ for 10—15 minutes, were not quite consistent, and varied with different lots of seeds. It was demonstrated in the present experiment, that this inconsistency was mainly due to variations of the moisture content of the...

In the course of investigations on various methods of seed treatments for the control of kenaf anthracnose (Colletotrichum hibisci Pollacci), it was found that the results of the conventional method of hot-water treatment, that is, presoaking in cold water for 3—8 hours, and then at 50—52℃ for 10—15 minutes, were not quite consistent, and varied with different lots of seeds. It was demonstrated in the present experiment, that this inconsistency was mainly due to variations of the moisture content of the seeds after presoaking and priot to hot-water treatment. When seeds were presoaked at a definite temperature (20℃)for 0—24 hours, the efficacy of the treatment was found to correlate fairly well with the increase in moisture contents of the seeds, or with the increase in the length of time of presoaking. Complete disinfection was obtained by treating the seeds at 50℃ for 15 minutes or at 52℃ for 10 minutes after presoaking at 20℃ for 12 hours. The moisture content of such seeds was found to be around 40%, and this figure was considered as a safety matgin in moisture content for successful control of the disease. The time and method of harvesting, storage conditions and exposure to direct sunlight before seed treatment, may also affect the rate of water absorption during presoaking period, and hence the moisture content of the seeds. This variation can be reduced considerably by prolonged presoaking of the seeds. In our experience, a 12-hour presoaking at 20℃ was found to be adequate for this purpose. Seeds of different moisture contents may also be separated by treating the seeds in solutions of different specific gravity. It is suggested that in order to work out an effective method of hot-water treatment for controlling the disease it is necessary to adjust the right moisture content of the seed as stated in the above prior to hot-water treatment. The relation of moisture content of the seeds during presoaking period to the efficacy of hot-water treatment against internal pathogens may also be found useful in the control of other seed-borne disease.

洋麻炭疽病的种子消毒处理,在現有方法中,虽以冷水溫湯浸种为最好,但杀菌效果仍不能彻底,效果也不稳定。試驗証明,預浸后种子的含水量是决定溫浸效果的关鍵性因素。一般种子在20℃的冷水中預浸12小时,含水量由10%增加到40%,以后在50℃的温水中处理15分钟或52℃处理10分钟,就可获得彻底杀菌的效果。随着預浸时間的延长,种子的含水量相应增加,同时种子間含水量的差异也逐漸减少,更易达到彻底的目的。种子成熟度的不同和保藏情况对种子的吸水速度也有很大的影响,尤以晒种的作用更为明显。种子在处理前晒种1小时就显著減低种子的吸水速度,从而影响种子处理的效果。

 
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