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sclerotia
相关语句
  菌核
    STUDY ON THE PARASITIC FUNGI ON SCLEROTIA OF SCLEROTINIA SCLEROTIORUM IN RAPE
    油菜菌核病菌(Sclerotinia sclerotiorum)菌核上寄生真菌研究
短句来源
    EFFECTS OF ULTRA-VIOLET RADIATION ON THE GERMINATION OF SCLEROTIA AND THE SPEED OF APOTHECIAL DEVELOPMENT OF SCLEROTINIA SCLEROTIORUM(LIB.)DE BARY
    紫外光对菌核(Sclerotinia sclerotiorum(Lib.)de Bary)萌发和子囊盘形成速度的影响
短句来源
    Even germination of sclerotia was also inhibited,the inhibition rate reached to 60%-70%.
    同时还能抑制菌核的萌发,抑制率达60%~70%;
短句来源
    The sclerotia germinated over a temperature of 18-35℃, with an optimum at 25-30℃.
    菌核萌发的温度范围为18-35℃,最适温度为25-30℃。
短句来源
    The numbers of sclerotia decreased significantly when treated with pesticides at the concentration of 50mg/L.
    多数药剂在50mg/L的浓度下,能较高程度的抑制菌核形成的数目,如功夫、敌杀死等。
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  “sclerotia”译为未确定词的双语例句
    The Parasitism of Gliocladium Roseum 67-1 Strain on Sclerotia of Sclerotinia Sclerotiorum and the Molecular Mechanism Involved
    粉红粘帚霉67-1菌株对核盘菌的寄生性及其分子机理
短句来源
    A little Sclerotia were formed in the exterior inhibited mycelium mat. In the range of 2.5-50 ppm, fungicidal action was induced by Monceren, but fungistatic action by Mepronil, and for Moncut, the concentration for fungicidat action was within 5-50ppm, at 2.5 ppm, it could induce fungistatic action.
    Monceren在50—2.5ppm均表现杀菌作用,Mepronil均表现抑菌作用,Moncut在50—5ppm具杀菌作用,2.5ppm具抑菌作用。
短句来源
    In the experiment of an artificially inoculated desease, rate of deseased leaf and deseeaed plant of which were induced with extracts of Sclerotia Disease fruit tissues of Cucumber wrer 37.14% and 10.00%, respectivly, than that of the control, rela—tive immunization efficiency was 44.15%;
    在人工接种病原激发病害试验中,经茵核病果浸出液诱导的植株,其病株率比ck降低10.00%,病叶率降低37.14%,相对免疫效果为44.15%;
短句来源
    The growth pH value for the pathogen is 2--9. The pretkrence pH value is 3--7, and optimum pH value is 5. The hyphae grow is faster in darkness, but light is good for sclerotia formation.
    病菌生长pH值范围2—9,适宜pH值3—7,最适为pH5。
短句来源
    The pH5~6 was the most favorable for hypha growth and sclerotia formation.
    pH5-6时最适宜菌丝生长;
短句来源
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  sclerotia
The affected cane cuttings and cankers occurring on affected canes were found to contain Coniothyrium fuckelii (the causal fungus of rose stem canker) and sclerotia of Botrytis cinerea (the causal fungus of gray rot).
      
Sclerotia of the acellular (true) slime mould Fuligo septica as a model to study melanization and anabiosis
      
In this study, sclerotia of Fuligo septica were analyzed by means of electron paramagnetic resonance (EPR) spectroscopy.
      
The moulds were cultivated in vitro on filter paper, fed with oat flour, and kept until the plasmodia began to produce sclerotia.
      
The obtained sclerotia differed in colour from yellow through orange to dark-brown.
      
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The Sclerotinia disease of the rape plant is widely distributed in 19 provinces in China. It is more prevalent and destructive in the Yang-Tze Valley and the South-Eastern coastal provinces. These regions are characterized by the concurrence of the relatively cool temperature (around 15℃.), the abundant rainfall (month average exceeds 100 mm.), and the susceptible stage of the host plant (usually during the blooming period). Sclerotinia sclerotiorum has been found attacking 71 species of economic plants of 19...

The Sclerotinia disease of the rape plant is widely distributed in 19 provinces in China. It is more prevalent and destructive in the Yang-Tze Valley and the South-Eastern coastal provinces. These regions are characterized by the concurrence of the relatively cool temperature (around 15℃.), the abundant rainfall (month average exceeds 100 mm.), and the susceptible stage of the host plant (usually during the blooming period). Sclerotinia sclerotiorum has been found attacking 71 species of economic plants of 19 families. Beside the rape plant, peanut, soybean, and sunflower, the majority of the hosts are vegetables and herbaceous ornamental plants. In the host range, there are 13 species not hitherto reported; however, there are also 5 species of familiar plants which have been listed as hosts in other countries are not affected in China. No definite period of dormancy appeared to be necessary for the production of apothecia, but the temperaure reguirement for the sclerotial germination was found very narrow. They germinated best in moderately cool temperature (around 15℃.) in moist sand., The sclerotia raising from single spore cultures germinated very slowly and meagrely, while those from the parent mass culture germinated rather quickly and abundantly, a phenomenon pointing to the facultative heterothallic nature of the fungus. The ascospores have been found to germinate under a wide range of conditions. They germinated quite well on dry slide under high relative humidity. It may thus be justified to assume that the ascospores can be carried in a viable condition to a considerable distance by wind. Precentages of their germination under a temperature range of 5—30℃. exceeded 50% in less than 24 hours, being highest at 5—10℃. The pH range for mycelial growth was found to be pH 3—9, with an optimum around pH 5—8. High relative humidity (over 85%) and a supply of pectinase from diseased tissues were necessary for its infection. Flower petals of the rape plant have been found most susceptible to attack by the ascospores, while sound leaves were resistant to attack unless they had been chilled. A sudden drop of temperature, poor drainage, and especially lodging of the rape plants during their blooming stage have been observed to be predisposing under natural conditions. Ordinary, there are two crops of apothecia in a year, one in the Autumn and the other in the next Spring, the second crop should be considered as the major one. A rotation of rice with the rape plant and a big scale control campaign in vast area will materially reduce the source of infection, and thereby decrease incidence of the disease. Since the infection is dependent chiefly upon the number of sclerotia that will persist in the soil and the production of apothecia in the blooming period, epedemics may be forecasted on the basis of weather conditions prevailing at various times of the year. The facts that abundant Summer rainfall promotes decay of the sclerotia, and abundant rainfall in the the Autumn increases their number, may be considered as criteria for long term forecasting. Abundant rainfall in the early Spring and cold wind during the blooming period which promotes the germination of the sclerotia, the infection of either the ascospores or the mycelium, and the lodging and susceptibility of the host, may be based for short term forecasting.

1.油菜菌核病在我国的分布共有19省,而以长江流域及东南沿海各省为主。它的分布区域决定于較低的温度(15℃左右)、充沛的雨量(月平均超过100毫米)及寄主易感阶段(一般为花期)三者的密切配合。在秦岭以南的早春和深秋以及松花江流域的夏季,其配合是符合于这种情况的,因此发病較为普遍而严重。秦岭以北,包括华北与西北,上述三方面的配合基本上是不协調的,因此菌核病很少发生。2.它在我国的寄主共有19科71种,除油菜、花生、大豆及向日葵等油料作物外,主要为害蔬菜及草本观赏植物,因此花园菜圃是此菌潛伏埸所之一。在我国所发现的寄主中,有13种是未經报导过的,但也有5种常見的寄主在我国尙未见其被害。3.Sclerotinia sclerotiorum的各个发育阶段对于外界条件的要求是不一致的。菌核不需要休眠,但它发芽的要求很严格,只有继續在低温高湿的土壤中约一月左右才能盛发。它从单子囊孢子菌系所产生的菌核发芽率很低,而且发芽很缓慢,说明此菌是一个较弱的(己廾)宗配合菌类。子囊孢子发芽的要求最宽,它有耐干耐寒的能力。在5—30℃之间,24小时内的发芽率都能超过50%,而在5℃或10℃的温度下发芽率最高,而且发芽最快。它在接近饱和...

1.油菜菌核病在我国的分布共有19省,而以长江流域及东南沿海各省为主。它的分布区域决定于較低的温度(15℃左右)、充沛的雨量(月平均超过100毫米)及寄主易感阶段(一般为花期)三者的密切配合。在秦岭以南的早春和深秋以及松花江流域的夏季,其配合是符合于这种情况的,因此发病較为普遍而严重。秦岭以北,包括华北与西北,上述三方面的配合基本上是不协調的,因此菌核病很少发生。2.它在我国的寄主共有19科71种,除油菜、花生、大豆及向日葵等油料作物外,主要为害蔬菜及草本观赏植物,因此花园菜圃是此菌潛伏埸所之一。在我国所发现的寄主中,有13种是未經报导过的,但也有5种常見的寄主在我国尙未见其被害。3.Sclerotinia sclerotiorum的各个发育阶段对于外界条件的要求是不一致的。菌核不需要休眠,但它发芽的要求很严格,只有继續在低温高湿的土壤中约一月左右才能盛发。它从单子囊孢子菌系所产生的菌核发芽率很低,而且发芽很缓慢,说明此菌是一个较弱的(己廾)宗配合菌类。子囊孢子发芽的要求最宽,它有耐干耐寒的能力。在5—30℃之间,24小时内的发芽率都能超过50%,而在5℃或10℃的温度下发芽率最高,而且发芽最快。它在接近饱和的相对湿度中,并不需要一层水膜也能发芽。因此,推论它有一定距离的气流传播可能性。菌絲的要求介于两者之间,它对酸硷的适应范围很广(pH3—9,最适为pH5—8)。它对温度的要求和对子囊孢子发芽的相同。其侵染及生长最主要的条件为高湿度(相对湿度高于85%)及足够的果胶酵素。4.油菜易感的阶段为花期。花冠最容易感染,衰老的叶片及受冻后的嫩叶也容易感病。通过这些桥梁,进而侵染莖稈。春季的寒流,后期的漬水和倒伏,造成发病的小气候;鼓励子囊孢子的发芽与侵入和菌絲的侵染与发展。因此,是此病猖獗的关键。5.子囊孢子是此病主要的而且是首次侵染源。菌核每年产生两次子囊盘,一次在深秋,是次要的;一次在早春,是主要的。菌核的潛伏埸所为:本田、种子间、花园、菜圃、打谷埸及堆肥中。水旱轮作可以消灭菌核;大面积联防可以减少侵染源。6.夏季的雨量丰富,使田间的菌核数下降;相反,深秋的雨量丰富,使菌核数增加;因此,前一年的夏季和秋季的雨量,可以用作长期测报的根据。本年早春的雨量丰富,促进菌核的发芽;花期的寒潮,后期田间渍水,植株倒伏,都使寄主易感,并鼓励子囊孢子的发芽侵入及菌絲的侵染与发展,是造成当年猖獗的主要原因,因此可以用为短期测报的依据。

In recent years,the Rhizoctonia blight of rice in southern part of Kiangsi province hasassumed an epidemic scale.The disease was found to be encouraged by close planting and high nitrogen fertilization.In general,semi-glutinous rice varieties were more susceptible than non-glutinous and glutinous.There were also varietal difference in susceptibility within each group.Effectiveness of sweeping out the sclerotia off the flooded fields before planting and apply-ing fungicidal materials on flooded fields before...

In recent years,the Rhizoctonia blight of rice in southern part of Kiangsi province hasassumed an epidemic scale.The disease was found to be encouraged by close planting and high nitrogen fertilization.In general,semi-glutinous rice varieties were more susceptible than non-glutinous and glutinous.There were also varietal difference in susceptibility within each group.Effectiveness of sweeping out the sclerotia off the flooded fields before planting and apply-ing fungicidal materials on flooded fields before planting and on growing plants in diseasecontrol were studied.Application of 1,500 kg.per hector of tea seed cake before plantingappeared to be promising.

近年来水稻纹枯病在江西南部地区发生普遍而严重,已成为水稻丰产的障碍。株间光照弱,温度高,通风不良,相对湿度高会促进病害的严重发生。在农业栽培措施中,肥料,尤其是氮素肥料对发病影响最大,氮肥愈多病害愈重,肥料配合与施用方法和插秧密度也影响病害的发生,分蘖后浅水灌溉,发病较轻,合理落水晒田可抑制病势发展,不当的栽培技术引起水稻倒伏,会促进病害剧烈发展,而病害的加重又促进植株倒伏。水稻感病程度的轻重依次为粳、籼、糯。粳稻一般发病较重。品种间抗性差异极大,但尚未见免疫品种。同一品种不同品系也有差异,经过选育的新品系,抗病程度有一定增强。在防治上,捞除田间菌核有一定防病作用。插秧前,利用药剂消毒、稻田淹水层,防病增产效果较大,其中茶籽饼液药效最好,田间防治效果71.5—95.8%,增产稻谷6.8—47.3%。消毒早稻田后,对晚稻防病增产仍有残效。

Benomyl, methyl l-(butylamino) carbonyl -1H-benzimidazol-2-ylcar -bamate, and carbendazim, methyl lH-benzimidazol-2-ylcarbamate(MB -C) were tested for their differences both in efficacy of disease control and fungitoxicity.The inhibitory effect of benomyl on the growth of Pellicularia sasaki at 1,65 μM/ml. was significantly higher than that of carbandazim. On the plants treated with benomyl the sclerotia of the fungus were not formed until 11 days after the treatment due to scarce mycelium produced while...

Benomyl, methyl l-(butylamino) carbonyl -1H-benzimidazol-2-ylcar -bamate, and carbendazim, methyl lH-benzimidazol-2-ylcarbamate(MB -C) were tested for their differences both in efficacy of disease control and fungitoxicity.The inhibitory effect of benomyl on the growth of Pellicularia sasaki at 1,65 μM/ml. was significantly higher than that of carbandazim. On the plants treated with benomyl the sclerotia of the fungus were not formed until 11 days after the treatment due to scarce mycelium produced while on those plants treated with carbendazim selerotia were formed with abundant mycelium as early as 3 days after treatment.The fungicidal efficiency of benomyl began to decrease apparently not until 8 days after treatment while carbendazim nearly completely lost its potentiality within 3 days. Under green house conditions, carbendazim could retain its efficiency only for 5 days while benomyl was still significantly effective against the pathogen even on the 11th day after treatment, in spite of having a sudden drop of efficiency on the 5th day, which, however, was restored quickly on the following days.In efficiency of protecting rice plants from being infected by Pellicularia sasaki benomyl was shown to be more effective than carbendazim, the degree of difference being especially significant on Zhen-jiu-ai cult-ivar, less significant on Hong-mei-zao and not significant on Er-jiu-ai. The study of efficacy of the fungicides to prevent further development of the disease was made on naturally diseased rice plants. The results showed that with a test concentration of 1.65μm/ml. the number of healthy leaves of the plants treated with benomyl and carbendazim were 24% and 15% greater than that of the check respectiveiy.The results of in vitro fungitovicity tests of the fungicides against Pellicularia saski showed that benomyl was 1.37-1.66 times (95% C.L.) as effective as carbendazim.The efficiencies of benomyl and carbendazim in controlling leaf spot of groundnut were 86.65% and 61.26% respectively.The results of in vitro fungitoxity tests against Gleosporium musarum also showed a statistically significant difference between benomyl and carbendazim with an average diameters of inhibition zone of 2.7098-3.3192cm and 2.7048-2.9199cm (95% C.L.) respectivly, the former being 5.04-10.22% more effective than the latter.

采用下列两种作物病害,在盆栽植株上或田间植物上用各种不同方法进行试验,比较苯来特和多菌灵两种内吸杀菌剂的各种防病作用的效果:(1)水稻纹枯病菌(Pelliculariasa-sakii);(2)花生叶斑病菌(Cercospora personata和C.arachidicola);并用水稻纹枯病菌和香蕉炭疽病菌(Gloeosporium musarum)分别用生长速率测定法和抑制圈法比较此两种化合物的杀菌毒力。除花生叶斑病在田间的试验采用药剂的重量作标准外,其他在用盆栽植物进行的试验中均采用克分子数作为标准进行比较。 各种不同试验的结果一致表明,苯来特的毒力和防病效果,都比多菌灵大,特别是在用同样的克分子数的毒效作为比较标准时,差异更为明显。用生长速率和抑制圈方法分别测定药剂对水稻纹枯病菌和香蕉炭疽病菌的结果说明,苯来特比多菌灵的毒力分别大1.37~1.66倍和5.04~10.22%。这两种药剂存在这种差别,看来与苯来特的分解产物中除MBC(即多菌灵)外,还有异氰酸丁酯这个事实有关。 苯来特和多菌灵的毒力,在不同品种的水稻上的反应有些不同,主要表现在药剂对植株的保护作用。在红梅早上,两者的差别很小,在二九矮上...

采用下列两种作物病害,在盆栽植株上或田间植物上用各种不同方法进行试验,比较苯来特和多菌灵两种内吸杀菌剂的各种防病作用的效果:(1)水稻纹枯病菌(Pelliculariasa-sakii);(2)花生叶斑病菌(Cercospora personata和C.arachidicola);并用水稻纹枯病菌和香蕉炭疽病菌(Gloeosporium musarum)分别用生长速率测定法和抑制圈法比较此两种化合物的杀菌毒力。除花生叶斑病在田间的试验采用药剂的重量作标准外,其他在用盆栽植物进行的试验中均采用克分子数作为标准进行比较。 各种不同试验的结果一致表明,苯来特的毒力和防病效果,都比多菌灵大,特别是在用同样的克分子数的毒效作为比较标准时,差异更为明显。用生长速率和抑制圈方法分别测定药剂对水稻纹枯病菌和香蕉炭疽病菌的结果说明,苯来特比多菌灵的毒力分别大1.37~1.66倍和5.04~10.22%。这两种药剂存在这种差别,看来与苯来特的分解产物中除MBC(即多菌灵)外,还有异氰酸丁酯这个事实有关。 苯来特和多菌灵的毒力,在不同品种的水稻上的反应有些不同,主要表现在药剂对植株的保护作用。在红梅早上,两者的差别很小,在二九矮上没有区别,而在珍珠矮上则差别显著。

 
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