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冬孢子     
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  teliospore
     Therange of the temperature adapted to the teliospore germination wasfrom 11℃ 33℃ with optimum temperatures 23℃ to 30℃.
     冬孢子的萌发温幅为11—33℃,最适萌发温度为23—30℃。
短句来源
     ON THE TELIOSPORE GERMINATION OF PUCCINIA GRAMINIS VAR. TRITICI
     小麦秆锈病菌(Puccinia graminis var.Tritici)冬孢子萌发的研究
短句来源
     The optimal germinating temperatures were 17 20 ℃ for teliospore,15 23 ℃ for basidiospore and 10 25 ℃ for aeciospore.
     孢子萌发最适温度为 :冬孢子 17~ 2 0℃ ,担孢子 15~ 2 3℃ ,锈孢子 10~ 2 5℃。
短句来源
     , is microcyclic, uredospore and teliospore hosts are involved in 13 families and 57 genera of monocotyledon and dicotyledon.
     外,其余均为长循环型生活史,夏孢子、冬孢子寄主涉及到单子叶和双子叶植物的13个科,57个属。
短句来源
     The teliospore of Sphacelotheca reiliana emerges promycelium with slowly on PDA media, its small spore(mean range 6.5μm×2.5μm)gemmates and forms small single pustule.
     玉米丝黑穗病菌(Sphacelothecareiliana)冬孢子在PDA平板上萌发产生先菌丝,生长缓慢,然后以小孢子(平均6.5μm×2.5μm)芽殖形成小菌落。
短句来源
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  winter spore
     Environment Factor Influence on Coix Lachryma-jobi Ustilago Winter Spore Vitality
     环境因素对薏苡黑粉病菌冬孢子活力的影响
短句来源
     and vegetative mycelium, decying vesicles, winter sporangium and winter spore and bacteroid-like cell in autumn and winter.
     秋冬季以衰退的营养菌丝、衰老泡囊、冬孢子囊和冬孢子、类菌体为主。
短句来源
     Through the experiments of pathogen identification,low altitude spore capturing, summer spore survival experiment, and winter spore inducing experiment, it was indicated that the corn rust(south type)in Hebei province was caused by foreign pathogen.
     病原菌鉴定、低空孢子捕捉、夏孢子存活时间、冬孢子诱导等一系列试验表明,河北省玉米南方型锈病是由外来菌源传播引起的。
短句来源
  “冬孢子”译为未确定词的双语例句
     Teliospores germinate at 8—28℃ with the optimum temperature of 16—18℃.
     冬孢子萌发温度8—28℃,最适16—18℃。
短句来源
     Teliosporescould germinate over a temperature range of 5~35℃, and the optimumtemperature for germination is at 10~25℃;
     冬孢子萌发的温度范围为5℃~25℃,适宜温度10℃~35℃;
短句来源
     Test of Puccinia carthami(Hu+z) Corda Telentospore's Iife-force
     红花柄锈菌[Puccinia carthami(Hu+z.)Corda]的冬孢子存活力检验
短句来源
     Studies on the Biological Characteristics of Teliospores of Sphacelotheca reiliana (Ⅱ)
     玉米丝黑穗病菌(Sphacelotheca reiliana)冬孢子生物学特性的研究Ⅱ
短句来源
     It was showed that the germination rates of teliospores on coleoptiles of susceptible maize materials (13. 23%~18. 81 % ) were higher than on coleoptiles of resistant maize materials (6.6%~7. 10% ).
     结果表明:冬孢子在感病的玉米材料胚芽鞘上的萌发率(13.23%~18.81%)显著高于在抗病的玉米材料胚芽鞘上的萌发率(6.60%~7.10%);
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  teliospore
Generally, wild teliospore collections usually produced sporidia of both mating-types, providing two-mating-type (TMT) strains.
      
The yield of teliospore colonies was usually reduced for these crosses.
      
In many of these teliospore colonies, morphologically-altered sporidia (MAS phenotype) were observed.
      
The morphology and the size of the sporidia with the MAS phenotype differed from those of teliospore colonies of the crosses between the laboratory strains.
      
In the wheat bunt fungi (Tilletia caries), the rate of teliospore germination is not only increased by light, but also by Ca(NO3)2 and KNO3 when present in the medium (Fig.
      
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  winter spores
Basements were the predominant sources for both summer and winter spores, while colonies were coming mainly from basements in summer but from bedrooms in winter.
      
Some cultivars found to be less resistant (Resistance Grade 2) in laboratory tests produced winter spores in the field test, and 10% of those derived from cv.
      
Similar results were obtained on a range of cultivars when inoculations were done using summer or winter spores.
      
Winter spores, which germinate freely in distilled water, can readily be extracted from dried rotted wart tissue to provide a reliable and continuous supply of inoculum.
      
At the Scottish Agricultural Science Agency, wart susceptibility testing using the GL method has been done with winter spores since 1987.
      


Melampsora rostrupii Wagner severely infected the seedlings and young trees of Populus tomentosa L,which caused a sharp decreasing in the growth-rate both in length and in width.Generally,the mycelia of the pathogen overwintered in the winter buds, or in the cambium region of the current twigs occasionally.Although the teliospores were existed,yet since no alternate host had been found,that they were of little importance in the occurrence of the disease. Uredospores were produced abundantly on young leaves,leafscars,or...

Melampsora rostrupii Wagner severely infected the seedlings and young trees of Populus tomentosa L,which caused a sharp decreasing in the growth-rate both in length and in width.Generally,the mycelia of the pathogen overwintered in the winter buds, or in the cambium region of the current twigs occasionally.Although the teliospores were existed,yet since no alternate host had been found,that they were of little importance in the occurrence of the disease. Uredospores were produced abundantly on young leaves,leafscars,or infected stems, beginning from the end of March.Such initial infection would soon become an out- break of the disease from May,until the end of September. Uredospores germinated quickly on the back of leaves after inoculated at 19.8— 23.6℃ in 1—2 days at a relative humidity of 100 per cent.However,none or very few spores germinated on the upper surface of the leaf.The development of the epidemic required a monthly mean temperature 18.2—26.8℃,and it would be of little influence when a relative humidity was below 48.1%.Thus,temperature was the main environ- mental factor which influenced the development of this epidemic. Uredinia hypophyllous,scattered or somewhat confluent,roundish,small,1 mm in width;naked when young,somewhat pulverlent,orange-yellow,light-yellow on the oppo- site sides of the pustules,and amphigenous on infected leaves. Uredospores globose,sub-globose or oval,15—22.5×17.5—27.5μ,wall colorless,3μ thick,evenly verrucose with fine papillae;paraphyses capitate or clavate,smooth,50— 75μ long,head 15—23μ broad,wall 3—6μ thick. Telia hypophyllous,sometimes amphigenous,scattered,around the old uredinia,ir- regular roundish,small,1/2—1 mm width,subepidermal,slightly elevated,greyish-brown; teliospous prismatic,1-celled,flat or round at the head,broader in top,7.5—10× 37.5—50μ,light brown,smooth,wall 1—2μ thick. Based on these characters,this fungus is considered to be Melampsora rostrupii Wagner,and it is believed to be the first collection in this country.

毛白杨锈病对于毛白杨苗木和幼树生长是极不利的。这种病害在我国尚系初次发现。病原菌以菌丝状态在寄主冬芽或嫩梢中越冬,春季3、4月间冬芽开展时即在嫩叶上出现夏孢子堆,成为初灰侵染的主要来源。4月下旬—5月上旬是病害的大暴发期,6月底—7月初达到高峰,并持续到9月底。接种在叶背面绒毛上者,予以大气饱和湿度,在19.8—23.6℃中,1—2天即萌发;但接种在叶面者极少萌发。潜育期在日平均温度14.2—19℃中(变温范围15.6—23℃)为时4—4.5天。病害流行期中,月平均温度为18.2—26.8℃,相对湿度低达48.1%时仍不受影响。冬孢子堆多生于叶背面原来生夏孢子堆处的外围或附近处,隆起作馒头状,其上复有寄主的表皮组织。各孢子为棱柱状,顶端略平而圆,无棱角,上宽下窄,淡褐色,37.5—50×7.5—10微米大小,壁厚2微米,表面平滑。根据冬孢子形态,病原菌暂定名为 Melampsora rostrupii Wagner。

Factors concerning the overwintering and germination of teliospores of Puccinia graminis Var. tritici were studies in 1954, and 1956 to 1958.

小麦稈锈病菌冬孢子的萌发受許多因素的影响。試驗証明:在田間直立过冬的麦稈上的冬孢子比在麦垜上的冬孢子萌发好,尤以晚播小麦在秋季低温下形成的冬孢子萌发更好;萌发方法以水滴正放为最优;用化学药剂处理方法对克服冬孢子的休眠期没有明显作用;冬孢子萌发温度范围为9°—20℃,最适温度为12°—16℃。

Spore surface markings of three Cronartium's aeciospores,uredospores and telia of pine blister rusts oceuring in China were observed under a scanning elect- ron microscope. On the surface of aeciospores of Cronartium flaccidum (from Pinus yunnanensis, P. massoniana and P. sylvestris war. mongolica),C.quercuum (from Pinus yunnanensis and P taiwanensis) and C. ribicola (from Pinus koraiensis), there are annulated processes with 5-8 layers. Every aeciospore had a evident smooth area The surface of smooth area and...

Spore surface markings of three Cronartium's aeciospores,uredospores and telia of pine blister rusts oceuring in China were observed under a scanning elect- ron microscope. On the surface of aeciospores of Cronartium flaccidum (from Pinus yunnanensis, P. massoniana and P. sylvestris war. mongolica),C.quercuum (from Pinus yunnanensis and P taiwanensis) and C. ribicola (from Pinus koraiensis), there are annulated processes with 5-8 layers. Every aeciospore had a evident smooth area The surface of smooth area and the tops of processes were at the sams level. These processes sometimes were connected in two or more from the bottom to tips, or only witb the tips. Between the corresponding layer annulations of the processes there are usually one to several connected fibril Each species could be distinguished by the shape and size of its processes and smooth area The processes of C. ribicola had about the same breadth from the bottom to tips, on which the surfaces are even, annulated in 7-8 layers While C. flaccidum and G.quercuum had narrow processes annulated evidently with 5-7 more obvious layers. One to several fibrils between processes appeared, but the smooth area of the former were larger and longer. The aeciospores of C. flaccidu,a secured on Pinus yunnanensis and P, sylvestris var. mongolica had significant morphological differences.

用扫描电镜观察了中国三种松疱锈病菌的锈孢子、夏孢子和冬孢子堆表面形态。取自云南松正[Pinus yunnanensis Franch]、马尾松 [P.massoniana Lamb.]、樟子松[P.sylvestris var.mongolica Livim.]的松芍柱锈菌[Cronartium flaccidum (Albet Schw.)Wint.],取自云南松和黄山松[P.taiwanensis Hay]的栎柱锈菌 [C.quercuum Miyabe.]和取自红松(P.koraiensis Sieb.et Zuec.]的茶蔗生柱锈菌[C.ribicola J.C.Fischerex Rabenh.]的锈孢子表面都具突起,突起上都有环纹。三个菌种的锈孢子,都有一个明显的平滑区。生在东北茶藤子[Ribes manschuricum(Maxim.)Kom]、返顾马先蒿[Pedicularis resupinata L.]和芍药[Paeonia lactifloraPall.]上的冬孢子堆(柱)稍有差异可以相互区别,而夏孢子的形态基本相似。

 
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