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watermelon wilt
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  西瓜枯萎病
     Mutation screening of high antagonistic substance-producing activity strain in Bacillus subtilis strain B11 for watermelon wilt
     西瓜枯萎病生防菌枯草芽孢杆菌B11菌株高产拮抗物质的诱变选育
短句来源
     . The laboratory test,Fusarium oxysporum of watermelon wilt stub root died to need under 41 ℃,4 d,need under 43 ℃,1 d.
     经室内测试,西瓜枯萎病株根内的病菌Fusariumoxysporum在41℃下死亡的时间需4d,在43℃下需1d.
短句来源
     Shenqinmycin, which key component is pheazine-1-carboxylic acid (PCA), has a good effect on prevention and cure pimiento epidemic and watermelon wilt diseases, which is broad-spectrum, high efficiency, low toxicity, good environmental compatibility and low cost.
     新型生物农药申嗪霉素,其有效成分为吩嗪-1-羧酸(phenazine-1-carboxylic acid, PCA),对甜椒疫病和西瓜枯萎病的防治具有广谱、高效、低毒、环境相容性好、生产成本低等显著特点。
短句来源
     Bacillus subtilis strain B11, which isolated from soil in Guangxi,was strongly inhibition to the growth of the pathogen of watermelon wilt.
     从西瓜根围分离得到的枯草芽孢杆菌(Bacillus subtils)B11菌株对西瓜枯萎病菌具有较强的抑菌活性。
短句来源
     In field trials, when Jiangenbao dust diluted with soil at the ratio of 1∶50 was applied into seed delves before sowing, 80% control effect against watermelon wilt was obtained, which was apparently higher than that of carbendazim and amino oligosaccharin.
     田间试验表明 ,健根宝粉剂以 1∶50拌土在播种时穴施 ,对西瓜枯萎病的防效达80 %以上 ,显著高于常用药剂多菌灵和施特灵。
短句来源
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  枯萎病
     Mutation screening of high antagonistic substance-producing activity strain in Bacillus subtilis strain B11 for watermelon wilt
     西瓜枯萎病生防菌枯草芽孢杆菌B11菌株高产拮抗物质的诱变选育
短句来源
     . The laboratory test,Fusarium oxysporum of watermelon wilt stub root died to need under 41 ℃,4 d,need under 43 ℃,1 d.
     经室内测试,西瓜枯萎病株根内的病菌Fusariumoxysporum在41℃下死亡的时间需4d,在43℃下需1d.
短句来源
     Shenqinmycin, which key component is pheazine-1-carboxylic acid (PCA), has a good effect on prevention and cure pimiento epidemic and watermelon wilt diseases, which is broad-spectrum, high efficiency, low toxicity, good environmental compatibility and low cost.
     新型生物农药申嗪霉素,其有效成分为吩嗪-1-羧酸(phenazine-1-carboxylic acid, PCA),对甜椒疫病和西瓜枯萎病的防治具有广谱、高效、低毒、环境相容性好、生产成本低等显著特点。
短句来源
     Bacillus subtilis strain B11, which isolated from soil in Guangxi,was strongly inhibition to the growth of the pathogen of watermelon wilt.
     从西瓜根围分离得到的枯草芽孢杆菌(Bacillus subtils)B11菌株对西瓜枯萎病菌具有较强的抑菌活性。
短句来源
     In field trials, when Jiangenbao dust diluted with soil at the ratio of 1∶50 was applied into seed delves before sowing, 80% control effect against watermelon wilt was obtained, which was apparently higher than that of carbendazim and amino oligosaccharin.
     田间试验表明 ,健根宝粉剂以 1∶50拌土在播种时穴施 ,对西瓜枯萎病的防效达80 %以上 ,显著高于常用药剂多菌灵和施特灵。
短句来源
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  “watermelon wilt”译为未确定词的双语例句
     The control efficacy of T31 G1 and B11 to the watermelon wilt in field was about 35-50%.
     经田间防治试验,T_(31)、G_1和B_(11)单个菌的田间防效在35—50%左右;
     During 1989-1990, integrated control of watermelon wilt was carried out. The effects were significant(90.91%- 92.70%) with high yield increases (58.93%-64.93%)
     〕。 在防治上,采用综合防治措施,经过1989~1990年试验,防效达90.91%~92.70%,增产58.95%~64.93%。
短句来源
     The control efficacy of T31,G1 and B11 to the watermelon wilt disease in field was about 35%~50%.
     经田间防治试验,T31、G1和B11单个菌的田间防效在35%~50%左右;
短句来源
     STUDIES ON THE ACTION BEHAVIOR OF KANGKUNING TO WATERMELON WILT DISEASE (FUSARIUM OXYSPRIUM F. SP. NIVEUM)
     抗枯宁对西瓜生长及防治枯萎病作用的研究
短句来源
     IDENTIFICATION AND BIOLOGICAL CHARACTERS OF WATERMELON WILT DISEASE
     西瓜枯萎病原菌鉴定及其生物学特性的研究
短句来源
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During 1987 to 1989, field studies were conducted in Henan Province for the control of watermelon wilt with Agricultural Antibiotic 120 (Streptomvsis product), to compare its effect with 18 commonly used chemical fungicides. The results showed that Antibiotic 120 gave an average control effect of 83.9+11.86%, which was 23-43% higher than that of the other fungicides. It was found that the most effective method and timing of applying Antibiotic 120 were pouring its 100 ppm water solution onto the root two...

During 1987 to 1989, field studies were conducted in Henan Province for the control of watermelon wilt with Agricultural Antibiotic 120 (Streptomvsis product), to compare its effect with 18 commonly used chemical fungicides. The results showed that Antibiotic 120 gave an average control effect of 83.9+11.86%, which was 23-43% higher than that of the other fungicides. It was found that the most effective method and timing of applying Antibiotic 120 were pouring its 100 ppm water solution onto the root two times before infestation of the disease. For direct sown watermelon, the first treatment was made when the plants had 4-5 leaves, and the second treatment at the same dose 7-10 days later. For transplanted watermelon, the two treatments were in seedling bed and during transplanting, respectively. This technique had been implemented in 7,333.3 ha of watermelon fields in 120 counties of Henan Province during 1987-1989. An average control effect of 70-90% was obtained.

1987~1989年进行了农抗120与常用化学杀菌剂防治西瓜枯萎病的药效对比,及不同使用期农抗120的防病效果试验,结果表明,全省多点用300倍农抗120,施药2次,防治西瓜枯萎病的效果平均为83.91±11.86%,比常用化学杀菌剂高23~43%,农抗120的防效与施药时期关系密切,两次灌根时间都应在发病之前,第一次施药时间:直播西瓜在4~5片真叶期,移栽西瓜在苗床期,右,据河南省120个县市,11万亩西瓜的防治示范结果,隔7~10天,进行第二次施药,病株率已控制在0~8%左平均防效为70~95%,每亩挽回西瓜损失200~400公斤。

In liquid culture, Fusarium oxysporum f. sp. niveum produces toxic substance which mainly is fusarialacid. Test of resistance to wilt was carried out by soaking the 2ndleaf seedlings of eleven watermelon varieties in 50% toxin filtrate for 88 hours. The resistances of eleven watermelon varieties to toxin were correlated with their resistances to watermelon wilt disease.Before inoculation the differences among peroxidase isozymes of 11 watermelon varieties were only a little, and the color and number...

In liquid culture, Fusarium oxysporum f. sp. niveum produces toxic substance which mainly is fusarialacid. Test of resistance to wilt was carried out by soaking the 2ndleaf seedlings of eleven watermelon varieties in 50% toxin filtrate for 88 hours. The resistances of eleven watermelon varieties to toxin were correlated with their resistances to watermelon wilt disease.Before inoculation the differences among peroxidase isozymes of 11 watermelon varieties were only a little, and the color and number of the enzyme bands were of the same, After inoculation, the activities of peroxidase isozymes in the 2nd-leaf were inten sified. The enzyme activities of susceptible varieties invariably had one or two more isozyme bands than those of the resistant ones. It is suggested that the appearance of more new isozymes in the susceptible varieties upon inoculation may be used as a biochemical criterion for screening the resistant varieties of watermelon plants from those susceptible to fusarial wilt disease.

在培养液中,西瓜枯萎病菌(Fusarium oxyspoyum f.sp.niveum)产生以镰刀菌酸为主的致萎物质,用50%的枯萎病菌培养滤液浸苗88小时,对不同西瓜品种致萎力的差异情况与品种在病圃中的抗病性表现基本一致。 受枯萎病菌侵染以前,11个西瓜品种的过氧化物酶同工酶差异极小,酶带数及颜色深浅相同。接种枯萎病菌以后,感病品种比抗病品种的过氧化物酶同工酶活性增强,酶带数增加1-2条。同工酶谱中E_1、E_7酶带或E_1酶带的出现与否,是鉴别西瓜品种抗枯萎病的一个生化指标。

This paper reports the distribution and the economic losses of watermelon wilt disease in Gansu province. The results showed that the isolated rate of Fusarium spp was 73. 1%, and the other fungi were Alte- rnaria etc. According to the cultural, morphological, monospore isolation, pathogenicity and formae specialis studies, under the standard condition of C. Booth, the causal organism was identified as Fusarium oxysorium f. sp. niveum. Two kinds of conidia, macroconidia and microconidia, had to germinate...

This paper reports the distribution and the economic losses of watermelon wilt disease in Gansu province. The results showed that the isolated rate of Fusarium spp was 73. 1%, and the other fungi were Alte- rnaria etc. According to the cultural, morphological, monospore isolation, pathogenicity and formae specialis studies, under the standard condition of C. Booth, the causal organism was identified as Fusarium oxysorium f. sp. niveum. Two kinds of conidia, macroconidia and microconidia, had to germinate in free water. Germination occured at pH 4. 5~9. 2, but the op- timum was at pH 5. 9. The fitter dilution of horseshit, soil, sugar, water- melon leave might stimulate the germination of the conidia. This effect was most obvious at first 4hr. Under the same condition, the germination of macroconidia was faster than microconidia and its logarithmic growth period was in 4~8 hr.

本文报导了西瓜枯萎病在甘肃的分布和危害。经采集培养、单孢分离,32个标样(320个病组织块)中,镰孢属真菌占73.1%,其余为链格孢等。按C.Booth标准条件培养,经致病性、专化型测定,甘肃省酒泉、民勤、兰州西瓜枯萎病的病原为尖镰孢西瓜专化型(Fusarium ox-ysporium f.sp. niveum)。该菌分生孢子的萌发需要液态水;分生孢子在pH4.53~9.18均可萌发,最适pH5.91;适宜浓度的马粪、土壤、蔗糖、瓜叶汁液对孢子萌发均有刺激作用,8小时内高出对照(清水)22%以上。刺激作用在4小时前表现最为明显;在相同条件下,大型分生孢子较小型分生孢子萌发快;4~8小时是大型分生孢子萌发的对数增长期;小型分生孢子萌发率缓慢增长。

 
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