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verticillium wilts
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  黄萎病
     Similarly, another equation can be attained according to the disease percentage of Verticillium wilts:P = (-283.55x2+357.35x-90.672)otc (0.3215 0.9611) 188 A' 'Where, 'P' means infested capability too, 'x' means disease percentage of Verticillium wilts.
     P=1/188integral from x1 to x2(-283.55x2+357.35x-90.672)dx (0.3215≤x≤0.9611)P也代表侵染能力,x代表黄萎病发病率,P值与群体的抵抗力成反比。 2.陆地棉铃病抗性的遗传分析
短句来源
     By using cotton dual-purpose line 473A with male sterile gene ms14 , Shanmian 9 with resistance to fusarium wilt and CCRI 12 with resistance to fusarium and verticillium wilts, genetic male sterile dual-purpose line kangA 1 and kangA 2 by means of crossing transference and bidirectional selection to fertile plants and sterile plants in both disease nursery and field were conducted in from 1978 untill now.
     1978 年开始选用含棉花核雄性不育基因m s14的两用系473A、抗枯萎病品种陕棉9 号及抗枯黄萎病品种中棉所12, 通过杂交转育、病圃与非病圃、可育株与不育株的双重交叉选择, 成功地培育出抗枯萎耐黄萎和抗枯萎抗黄萎的核不育两用系抗A1 和抗A2。
短句来源
     1. Genetical analysis of Resistance to cotton Fusarrium andVerticillium wilts(1) The genetic variances of Fusarrium and Verticillium wilts of upland cotton: Additive variances for disease index of Fusarrium wilts was significantly influenced, which account for 34.8% (namely narrative heritability) of the phenomenon variance.
     (1)陆地棉枯、黄萎病遗传方差分解:以病情指数为抗病性的指标,陆地棉枯萎病抗病能力主要受加性效应影响,影响效果达到显著水平,占表型方差的34.8%(即狭义遗传率),遗传改良收效显著;
短句来源
     In order to combat the Fusarium and Verticillium wilts of cotton,a lotof resistant cultivars have been developed successively by the Institute ofCotton Research,Shensi Province,they are Shen 4,Shen 65-141,Shen401,Shen 416,Shen 112,Shen 3563,Shen 1155,etc.
     为了解决棉花枯、黄萎病问题,我们先后培育出陕4、陕65—141、陕401、陕416,陕112、陕3563、陕1155等抗病品种。
短句来源
     In 2001 and 2002, 16 new varieties (strains , cross-pollinated combinations) of Gossypium hirsutum L. were tested for their resistibility to Fusarium and Verticillium wilts and 3 were used to identify the pest resistance to Pink bollworm in the cotton variety regional test of Yangtze River valley .
     2001~2002年,对长江流域棉花品种区域试验的16个参试品种(系、组合)分别进行了抗枯萎病和抗黄萎病鉴定,另对3个抗虫品种进行了抗红铃虫鉴定。 抗枯萎病鉴定结果:有2个品种抗枯萎病,占鉴定材料的12.50%;
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  “verticillium wilts”译为未确定词的双语例句
     Of them, Chuan99-1890, 02-9, 02-140, 00-160, Chuan99-1892, 01-243, 2K-Y2 and SG-39 were resistant to both Fusarium and Verticillium wilts.
     其中,抗枯、抗黄的双抗品种有川99-1890、02-9、02-140、00-160、川99-1892、01-243、2K-Y2和SG-39共8个。
     AFLP Analysis of Cotton with Fusarium and Verticillium Wilts from the Huanghe and Changjiang Valleys
     黄河、长江流域棉区棉花抗病品种的AFLP分析
短句来源
     Studies on Breeding and Application for Genetic Male Sterile Dual-purpose Line of Cotton Resistant to Fusarium and Verticillium wilts
     棉花抗病核不育两用系的培育及应用研究
短句来源
     The Coutrol of Verticillium Wilts in Peanut
     花生黄叶病的病因探讨及防治措施
短句来源
     Progress in Cotton Breeding Resistance to Fusarium and Verticillium Wilts in Yangze River Valley
     长江流域棉花抗病育种进展
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  相似匹配句对
     The Coutrol of Verticillium Wilts in Peanut
     花生黄叶病的病因探讨及防治措施
短句来源
     SCREENING RESOURCES RESISTANT TO VERTICILLIUM AND FUSARIUM WILTS IN COTTON
     陆地棉×陆地棉半野生种族系后代的枯、黄萎病抗性鉴定和筛选
短句来源
     , Verticillium spp.
     、轮枝孢属(Verticillium spp.)
短句来源
     Verticillium dahliae kleb.
     棉花黄萎病菌(Verticillium dahliae. Kleb.)
短句来源
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  verticillium wilts
This investigation was designed to explore the potential of microbial antagonism in the control of some tomato diseases including bacterial, Fusarium and Verticillium wilts; early blight; bacterial canker.
      
Breeding for resistance to Fusarium and Verticillium wilts
      
Genetic diversity among 95 Chinese upland cottons with Fusarium and/or Verticillium wilts resistance was estimated using Amplified Fragment Length Polymorphism (AFLP) and Simple Sequence Repeat (SSR) markers.
      
Assessment of genetic diversity among Chinese upland cottons with Fusarium and/or Verticillium wilts resistance by AFLP and SSR
      


The disease of Verticillium wilt commonly occurs in the cotton growing area of Liaoning province in recent years.Through a series of morphological and physiological studies,the fungus is identified as Verticillium albo—atrum R.et B. The fungus has a better growth on the modified Czapeks' agar medium as well as on the potato—sugar agar medium.After 4 to 5 days,the fungus shows an abundant growth of mycelia,conidia and microsclerotia on the mentioned media. The temperature for the growth of the fungus...

The disease of Verticillium wilt commonly occurs in the cotton growing area of Liaoning province in recent years.Through a series of morphological and physiological studies,the fungus is identified as Verticillium albo—atrum R.et B. The fungus has a better growth on the modified Czapeks' agar medium as well as on the potato—sugar agar medium.After 4 to 5 days,the fungus shows an abundant growth of mycelia,conidia and microsclerotia on the mentioned media. The temperature for the growth of the fungus lies between 17°to 28℃,the optimum being 25℃.The optimum temperature for the germination of coinidia is from 15°to 20℃.The conidia of the fungus have a high germination percentage on the one percent dextrose solution.However,they also germinate well on sterilized water;and hence,it seems to indicate that the requirement of nutrients for the germination of conidia is not strict. From the results of wound inoculation with spore suspension,it is indicated thet the conidia are able to infect the roots and stems of the plants in the seedling, flowering and belling stages.However,a higher percentage of infection can be obtained from the flowering to belling stage in 8 to 16 days.

1.棉黄萎病病原菌,经鉴定后,采用 Verticillium albo-atrum Reinke et Berthold学名。2.最适本病原菌生育的培养基,以改良 Czepek's 组合和马铃薯培养基为最好,在这两种培养基上菌丝生长旺盛,经过4—5天后都能生很多分生孢子,并渐生成小菌核。3.本病原菌的发育温度以17°—28℃较好、其中尤以25℃最好。孢子发芽温度以15°—20℃篇最好、在1%葡萄糖液中发芽最好。但在灭菌水中发芽亦好,对营养的要求并不太高。4.本病原菌自苗期(具四真药)开始直至后期,皆能侵入棉株内部,其中尤以用孢子悬浮液于棉根附近接种的办法,得知在开花期至结铃期皆能显现较高的发病率、根据实验记载,在棉花生育期中,接种后一般8—16天左右即能现出病征,此比前人记载期限较早。

When actinomycetes antagonist is cultured in the cotton seed cake and usedas a fertilizer for cotton,a stimulating effect on growth of the plant and a decr-ease of percentage of Verticillium wilt has been observed.The isolates of Actino-mycetes which have shown the best results are G_4 and 5406.Throughout thegrowing period,three applications of the antagonist carried fertilizer show a decr-ease of 31-50% disease and an increase of 14-40% yield.The three applicationsof the antagonist carried fertilizer...

When actinomycetes antagonist is cultured in the cotton seed cake and usedas a fertilizer for cotton,a stimulating effect on growth of the plant and a decr-ease of percentage of Verticillium wilt has been observed.The isolates of Actino-mycetes which have shown the best results are G_4 and 5406.Throughout thegrowing period,three applications of the antagonist carried fertilizer show a decr-ease of 31-50% disease and an increase of 14-40% yield.The three applicationsof the antagonist carried fertilizer seem to be better than that of two applications.However,the yield increase due to the fourth application can hardly cover the costof labour and material. According to the results of a burried-slide test for inspecting the dynamics ofthe antagonist in certain depths of soil,it is found that the actinomycetous isolatesG_4 and 5406 survive a comparativly longer period at a soil depth of 2.5-10 cm.,buttheir amount per unit volume of soil is gradually reduced with time.The anta-gonists are most abundantly distributed at a depth of 5-7.5 cm.It is suggestedthat three applications of the antagonist carried fertilizer may be practical in con-trolling the Verticillium wilt of cotton.

1.1954—1956年在辽陽和北京两地的田間試驗証明:施用“加用抗生菌的肥料”后,不仅能增加棉花的出苗、刺激棉株的生育,并且对黃萎病有显著的防治作用,增产的效果很明显。2.从不同菌种的效能来看,都有防病增产的作用。其中的G_4和5406号抗生菌(均屬放綫菌)的效果最好。进行三次分施时,可减輕發病率31—50%,增加产量14—40%。402号抗生菌种有引起花蕾脫落的恶果;3号及13号虽有显著的防病作用,但增产效能不如G_4。3.不同的抗生菌种混合施用时,沒有表現出增强的作用。4.抗生菌肥料施用的次数,以愈多愈好。在播种前十天作为基肥一次施入者,防病的作用最差,增产作用也不显著。两次分施的,必須在播种时沟施小部份,而将大部份在显蕾期中施入;三次分施的,一般較二次分施的效果高。基肥时不施,单在定苗、显蕾、开花期分施的,对黃萎病的防除效果較大,而对增产作用較小。分四次施肥,所須人工太多,防病、增产的效果并不比三次分施的显著提高。5.根据“埋片法”檢查施入的抗生菌在棉田中消长情况的結果,証明C_4号及5406号放綫菌施入棉田后,在2.5—10厘米深处能維持很长的时間,但其菌量随时間延长而逐漸减少。单施棉籽餅的,在2....

1.1954—1956年在辽陽和北京两地的田間試驗証明:施用“加用抗生菌的肥料”后,不仅能增加棉花的出苗、刺激棉株的生育,并且对黃萎病有显著的防治作用,增产的效果很明显。2.从不同菌种的效能来看,都有防病增产的作用。其中的G_4和5406号抗生菌(均屬放綫菌)的效果最好。进行三次分施时,可减輕發病率31—50%,增加产量14—40%。402号抗生菌种有引起花蕾脫落的恶果;3号及13号虽有显著的防病作用,但增产效能不如G_4。3.不同的抗生菌种混合施用时,沒有表現出增强的作用。4.抗生菌肥料施用的次数,以愈多愈好。在播种前十天作为基肥一次施入者,防病的作用最差,增产作用也不显著。两次分施的,必須在播种时沟施小部份,而将大部份在显蕾期中施入;三次分施的,一般較二次分施的效果高。基肥时不施,单在定苗、显蕾、开花期分施的,对黃萎病的防除效果較大,而对增产作用較小。分四次施肥,所須人工太多,防病、增产的效果并不比三次分施的显著提高。5.根据“埋片法”檢查施入的抗生菌在棉田中消长情况的結果,証明C_4号及5406号放綫菌施入棉田后,在2.5—10厘米深处能維持很长的时間,但其菌量随时間延长而逐漸减少。单施棉籽餅的,在2.5—5厘米深处,也能产生大量的放綫菌,有时較对照(只施化学肥料的)增加2倍,接近于抗生菌肥料中所含的放綫菌数。

The present paper deals with some experiments attempting to suggest an easier and morereliable method of isolation and identification of the Verticillium wilt organism especially forthe purpose of seeds and soil inspection.The results obtained are as follows:1.The cotton seed cake meal agar (cotton seed cake meal 10 g.,95% alcohol 17 ml.,Strep-tomycin 100 p.p.m,agar-agar 7.5 g.and water ad.1000 ml.) gave the best results,which wasremarkably superior to the Nadakavakaren's alcohol agar and other media.By...

The present paper deals with some experiments attempting to suggest an easier and morereliable method of isolation and identification of the Verticillium wilt organism especially forthe purpose of seeds and soil inspection.The results obtained are as follows:1.The cotton seed cake meal agar (cotton seed cake meal 10 g.,95% alcohol 17 ml.,Strep-tomycin 100 p.p.m,agar-agar 7.5 g.and water ad.1000 ml.) gave the best results,which wasremarkably superior to the Nadakavakaren's alcohol agar and other media.By using the statedmedium,even a“degenerated strain”which has lost its ability of microsclerotia formation forseveral years again formed large amount of microsclerotia immediately.2.In isolations of the seed-borne Verticillium from the fuzzed cotton seed collected fromthe diseased plants of different localities,microsclerotial colonies were found macroscopically inthe above mentioned medium.After purification,the typical verticilliate conidiophores wereobserved.Typical symptoms on the cotton seedlings which were inoculated with the purifiedculture resulted.According to the number of the microsclerotial colonies formed,the per-centage of infected seeds was estimated to be about 5%.It was also found that both welldeveloped and under developed seeds of the same origin were equally infected by Verticillium.No microsclerotia formation was observed on seeds collected from the field free from Verticilliumin Peking by means of the same method.3.Soil collected from the infested field was also studied with the above mentioned medium.In each plate,4-7 tufts of microsclerotia were formed while in other media microsclerotia werescarcely produced.4.It is suggested that this method of isolation and identification of the seeds,as well asscil-borne Verticillium wilt organism is a more practical and reliable one.

根据黄萎病菌在培养基上能形成微菌核的特性,寻找适于种子与土壤中黄萎病菌微菌核形成的培养基和相应的检查种籽和土壤带菌的方法。1.试验结果表明,棉籽饼粉酒精洋菜培养基(棉籽饼粉10克、95%酒精17毫升、键霉素100p.p.m.、洋菜7.5克、水1000毫升制成)对病菌形成微菌核的效果比 Nadakavakaren 介绍的培养基显著优越。即使对“退化”病菌,亦能促其迅速恢复形成大量微菌核的能力。2.应用上述棉籽饼粉酒精洋菜培养基对从辽阳、临汾和安阳各地黄萎病株上采收的种子进行分离,可得到肉眼可见的微菌核丛,而且具有典型的轮生分生孢子梗,纯化的病菌接种棉苗也表现典型症状。直接证明了这些棉籽确实带有黄萎病菌。用无病田采收的种子进行分离,无微菌核丛形成。3.用上述培养基进行土壤黄萎病菌的分离,也获得比其他培养基显著优越的结果,每皿可出现4—7个微菌核丛。其他培养基仅出现少量甚至完全不形成微菌核。4.上述种子和土壤黄萎病菌分离和检查方法,可试用于种子和土壤带菌的检查及有关种子和土壤消毒效果等的研究。

 
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