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相对防效
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  relative control effect
    Mitaijunjing 6% AS diluted at 75 mg/L provided 83.85% relative control effect, which was significantly better than that of Triadimefon 15% WP at 300 mg/L in the field experiments. Mitaijunjing is safe to cucumber leaves and fruits in all experiments.
    保护地防效试验中6%嘧肽菌净水剂质量浓度为75mg/L对黄瓜白粉病的相对防效达83.85%,显著优于对照药剂15%三唑酮粉剂300mg/L,并且对黄瓜安全。
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    in the field environment, the relative control effect of the bio-control agents 28G14 on P capsici was 49.8%~70%.
    田间条件下,生防菌剂28G14对辣椒疫病相对防效为49.8%~70.0%;
短句来源
    The results showed that the relative control effect of engineering B. thuringiensis reached 40-45% in new A. konjac field and 35-40% in old A.
    结果表明:抗病工程菌株在老区的相对防效可达32—40%,在新区的相对防效可达40—45%;
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    konjac field (cultivated for one year). The best relative control effect of germicides reached 50% and those of so many germicides were lower than 40%.
    化学农药在魔芋软腐病发病盛期的最高相对防效只有50%左右,绝大部分化学农药的相对防效为40%或更低。
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    (C_(32)) and development of microbes in root zone were improved, the number of Gram-negative bacteria in check root zone was decreased, relative control effect of verticillium wilt of egplant was increased.
    覆膜处理促进了Glomussp(C32)菌株的侵染和茄菌根区微生物的发育,减少了对照根区革兰氏阴性细菌数,显著提高了对茄子黄萎病的相对防效
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  “相对防效”译为未确定词的双语例句
    The apple tree’s wound healing treated by 1.2% zuelaemycin EW was 49.94%, superior to that of asomate. The relative control efficacy of zuelaemycin was 88.17%.
    1.2%瑞拉菌素水乳剂涂治后的伤口愈合率为49.94%,明显优于40%福美砷WP的伤口愈合率,其相对防效达到88.17%。
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    The results showed that the relative control efficacy against bamboo aphids on selected shoots with three dilutions was 60.0%, 75.1%, and 80.7% within 7 days after spray, respectively. With the increase of the conidia concentration, the control efficacy was enhanced.
    结果表明,定株竹冠喷雾7d后,3个浓度处理的相对防效分别为60.0%,75.1%和80.7%,防治效果随浓度增加而提高.
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    The relatively control effects were 46.4% and 35.0%,respectively.
    为材料,证实了拮抗真菌制剂F和放线菌制剂Ⅱ对甜椒疫病均有显著的防治效果,相对防效分别为46.4%和35.0%;
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    The relative efficiency was 62.63%,67.78%and 53.0%,respectively, at 13, 29 and 41 days after treatment. The activities of defense-related enzymes in cucumber plants were detected in BTH treated and untreated plants.
    BTH处理后13d,相对防治效果达62.63%,处理后27d,相对防治效果为67.78%,处理后41d,相对防效仍可达53.80%。
    the disease control efficiency was 86.4% and 81.7% at 8 days, and 37.7% and 44.4% at 20 days following treatment, respectively.
    两个菌株的重复盆栽试验结果表明8d后的相对防效分别可达到86.4%和81.7%,20d后相对防效仍分别可达到37.7%和44.4%。
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Resistance to early blight of the tomato plants was induced by chitosan (1 mg/mL) at the fourthleaf stage of seedlings Chitosan treatment of tomato leaves before inoculation reduced the rates of diseased leaf and disease index The relative efficiencies of resistance in cultivars were Hezuo908 (highly resistant), Hezuo903 (moderately resistant), and Zaofeng (least resistant) As a consequence of the treatments, the activities of peroxidase (POD), polyphenol oxidase (PPO), phenylalanine ammonia lyase(PAL),...

Resistance to early blight of the tomato plants was induced by chitosan (1 mg/mL) at the fourthleaf stage of seedlings Chitosan treatment of tomato leaves before inoculation reduced the rates of diseased leaf and disease index The relative efficiencies of resistance in cultivars were Hezuo908 (highly resistant), Hezuo903 (moderately resistant), and Zaofeng (least resistant) As a consequence of the treatments, the activities of peroxidase (POD), polyphenol oxidase (PPO), phenylalanine ammonia lyase(PAL), chitinase, and β1,3glucanase in tomato leave increased but in different degrees with different cultivars The time courses of change in enzyme activities following chitosan treatment were also different The mechanism of induced resistance of chitosan was disscussed

在番茄四叶期用1mg/mL的壳聚糖进行诱导接种,可诱导番茄植株产生对早疫病的抗病性.经壳聚糖诱导后,3个番茄品种:合作908(高抗)、合作903(中抗)、早丰(敏感)的病叶率和病情指数均显著低于接种对照,相对防效分别为39.8%、49.9%和56.4%;壳聚糖诱导番茄的叶片过氧化物酶(POD)、多酚氧化酶(PPO)、苯丙氨酸解氨酶(PAL)、几丁质酶、β-1,3-葡聚糖酶活性提高,诱导活性在不同抗性品种中表现不同,不同酶的时序变化也有所不同,并探讨了壳聚糖诱导植物抗病性的生理机制.

In Fuling area where club-root of tumour mustard occured,a study of its controlling by cul -tivation and chemicals was made.The results showed that in natural infection condition,properly postpon-ing sowing,raising disease-free strong seedling,adjusting soil pH to about 8.0and promptly irrigating root with bactericide could control club-root effectively.Relative controlling effect arrived about 70%.

在涪陵茎瘤芥(榨菜)根肿病常发重病区,进行了该病可控栽培因子和化学药剂防治的控害技术研究。结果表明:自然感染条件下,适当推迟播栽期,异地培育无菌壮苗,调节土壤pH值至8.0左右,移栽时立即用杀菌剂灌根等技术,可有效控制茎瘤芥(榨菜)根肿病的发生危害。其相对防效达70%左右。

Different fungicides such as 70% Topsin-M WP、12.5% Carbendazim WP and 60% Myclobutanil WP with different density are chosen to decrease the damage caused by powdery mildew (Sphaerotheca pannosa)in rose varieties. The indoor and outdoor experiments indicate that 1 000~2 000 times of 12.5% Carbendazim WP is the best fungicide to control powdery mildew, with relative effect up to more than 90% in indoor control, and 2 000 times of 12.5% Carbendazim WP plus 1 000 times of 60% Myclobutanil WP and 1 000 times of...

Different fungicides such as 70% Topsin-M WP、12.5% Carbendazim WP and 60% Myclobutanil WP with different density are chosen to decrease the damage caused by powdery mildew (Sphaerotheca pannosa)in rose varieties. The indoor and outdoor experiments indicate that 1 000~2 000 times of 12.5% Carbendazim WP is the best fungicide to control powdery mildew, with relative effect up to more than 90% in indoor control, and 2 000 times of 12.5% Carbendazim WP plus 1 000 times of 60% Myclobutanil WP and 1 000 times of 70% Topsin-M WP by normal spraying are the best in outdoor control.

为了尽快控制月季白粉病的危害和蔓延,选用甲基托布津70%可湿性粉剂、特谱唑12.5%可湿性粉剂和泰高60%可湿性粉剂3种药剂的不同浓度对月季白粉病(Sphaerothecapannosa)进行室内毒力测定和野外防治试验,结果表明:特谱唑12.5%可湿性粉剂的1000~2000倍液对月季白粉病有良好的毒力效果,相对防效达90%以上;月季白粉病野外化学防治以特谱唑12.5%可湿性粉剂2000倍+泰高60%可湿性粉剂1000倍+甲基托布津70%可湿性粉剂1000倍液常规喷雾防治为佳。

 
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