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controlling effect
相关语句
  防治效果
    From the prosperous beginning stage to the peak age of wheat aphid number, its controlling effect was 93.14% ~ 99.52% .
    在小麦发生始盛期至高峰期,防治效果达93.14%~99.52%。
    The results of experiment by way of pot showed that thecontrolling effect on sharp eyespot of wheat reached more than 70% in a month afteremerge of seeding through seed treatment with 2% Raxil WS at the dosage of 0.125%seed weight, while the controlling effect descend to 17% at 70 day after emerge.
    戊唑醇防治小麦纹枯病的盆钵试验结果表明,用种重的0.125%的立克秀(2%WP)拌种,在小麦出苗后的一个月内的防效可达70%以上,随处理后时间的延长,防治效果逐渐下降,72d后,防效仅为17%。
短句来源
    The organic carbon fertilizer could promote the growth of American ginseng and had good controlling effect on the nematode, the relative control effect could get to 47.1% .
    有机碳素肥在促进西洋参生长的同时还对西洋参线虫有较好的防治效果,相对防效达到47.1%。
短句来源
    More than 200 thousand mu of demonstration fields are grown to these resistant high-yielding hybrids in 1981~1983.Very significant controlling effect (ranging from 92% to 100%, averaging 99%) were obtained and the output of sorghum grain went up enormously.
    1981~1983年用以上抗病高产杂交种进行了20多万亩的防治示范,对丝黑穗病的防治效果均极为显著,由92~100%,平均99.0%,增产粮食1000多万斤。
短句来源
    Four kinds of density were set on every plant. Results indicated that with the concentration of extract increasing,the control effect improved. Expecially the 4 times solution of Meliaazedrach Linn had the best controlling effect,and 1d,2d,3d after spraying,the effect rose to 88.7%,87.9%and 88.7%, respectively.
    试验表明 ,三种植物浸出液对菜青虫的田间防治效果随着自身浓度的升高而升高 ,其中 ,苦楝 4倍液对菜青虫的防治效果最好 ,药后 1、2、3天的防效分别达 88.7%、87.9%和 88.7%。
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  控制作用
    Controlling Effect of Induced Disease Resistance Agent SRS2 on Tobacco Brown spot et al.
    抗病诱导剂SRS2对烟草赤星病等的控制作用
短句来源
    Controlling effect of Campylomma chinensis on Aphis gossypii
    中华微刺盲蝽对棉蚜的控制作用
短句来源
    Controlling Effect of Campoletis chlorideae on Helicoverpa armigera
    齿唇姬蜂对棉铃虫控制作用的研究
短句来源
    Preliminary studies on the controlling effect of Campylomma chinensis Schuh on Plutella xylostella L.in the fields
    中华微刺盲蝽对小菜蛾控制作用的初步研究
短句来源
    Therefore,in the formation of counter-measures for pest management for paddy fields,rice strains should be taken as the key link and full use should be made of the controlling effect of the natrural enemies,resistant crop strains and living surroundings over the local dominant pests so as to successfully develop the key control techniques and form the regional EPM models.
    因此 ,稻田害虫的管理对策要以作物为中心 ,以当地的主要害虫为对象 ,充分发挥天敌、品种、生境等自然因素对害虫的控制作用 ,开发关键技术 ,形成区域性的EPM模式
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  控制效果
    The natural population of Saperda Papulnea L. in four different forest stands and sites were investigated and studied in xujiazhuang forestland and jinshatan forestland during 2001-2003. We compiled life table of natural population of Saperda papulnea L.. Compared with the results in 1981-1985; at the same time, investigated controlling effect of different foster measures to the population of Saperda papulnea L..
    2001-2003 年,对山西雁北地区薛家庄林场和金沙滩林场四种不同林分类型内的青杨天牛自然种群进行调查、编制生命表,并与过去的研究结果(刘贤谦等1981-1985)进行比较,同时调查了各种营林措施对青杨天牛种群的控制效果,为青杨天牛的可持续生态调控提供科学的依据。
短句来源
    The correlation and controlling effect of natural enemies to two leafminers were analyzed.
    评价了天敌对猎物的时间及空间跟随作用和控制效果
短句来源
    The results showed that the natural enemies,such as parasites, spiders,ladybirds have greater controlling effect on the two leafminers.
    研究表明 :寄生蜂、蜘蛛、龟纹瓢虫、异色瓢虫对豌豆潜叶蝇有较强的跟随作用和控制效果
短句来源
    The controlling effect decreased with the soil depth. Also, the number of phytoparasitic nematodes decreased by 5%.
    控制效果随土壤深度增加而下降,同时植物寄生线虫数量减少5%。
短句来源
    Though the unsatisfactory effect revealed by the number of the nematodes, the controlling effect of solarization was better than that of the check in growth, yield and content of root knot nematode.
    尽管黑膜覆盖消毒对土壤线虫含量的控制效果不太理想,但从黄瓜生长和产量以及根结着生来看,其控制效果仍然优于药剂消毒。
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  “controlling effect”译为未确定词的双语例句
    Quantitative Study on the Controlling Effect of Jinggangmeisu on Rice Sheath Blight
    井岗霉素对稻纹枯病控病效果的定量研究
短句来源
    Testing of controlling effect and production preserving in different doses was carried out. It was suggested that effects of 900 - 1200g/hm2 Sulphur + Triadimefon, 45 - 60g/hm2 Myclobutanil, 37.5 - 45/hm2 diniconazole on Wheat Powdery Mildew were better.
    用其不同剂量进行防效保产试验,结果表明锈霉灵900~1 200g/hm2、特谱唑45-60g/hm2、腈菌唑37.5~45g/hm2防治小麦白粉病可取得良好的防效。
    The Controlling Effect of 48% Butralin-octanol(Zhiyate)EC to Tobacco Axillary Buds
    48%地乐辛醇(止芽特)乳油对烟草腋芽的抑制效果
短句来源
    Controlling Effect and Security for a Novel Herbicide ZJ0273 10% EC on Oilseed Rapes
    10%丙酯草醚EC防除油菜杂草效果及药害分析
短句来源
    Studies on the Population Dynamics of Aphis Glycines and Controlling Effect of Its Dominant Natural Enemies in Northern China
    华北地区大豆蚜(Aphis glycines)的种群动态和主要天敌控制能力的研究
短句来源
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  controlling effect
The stoichiometry of TiCx, for which 0.3 ≤ x ≤ 0.5, has an important controlling effect on the formation of either Ni3Ti or NiTi; i.e., formation of TiC0.7 results in a depletion of titanium and formation of Ni3Ti.
      
The stoichiometry of TiCx, for which 0.3≤x≤0.5, has an important controlling effect on the formation of either Ni3Ti or NiTi;i.e., formation of TiC0.7 results in a depletion of titanium and formation of Ni3Ti.
      
The stoichiometry of TiCx, for which 0.3≤x≤0.5, has an important controlling effect on the formation of either Ni3Ti or NiTi; i.e., formation of TiC0.7 results in a depletion of titanium and formation of Ni3Ti.
      
For the shear flow rate-controlling effect, the accumulation rate of the contaminant is directly proportional to the disk surface velocity, while inversely proportional to the flying height of the slider.
      
1.The results show that the elastic stress-strain state of the material has a controlling effect on the processes of deformation and fracture of diamond in the penetration of the diamond pyramid.
      
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The head smut[Sphacelotheca reiliana(Kühn)Clint.]of corn is oneof the most important diseases in Bai-Cheng region of Jilin province.The percentage of smut plant is usually about 3-5%,and sometimesover 30%.The symptoms besides the ordinary stunting,rosetto andpolystooling were observed.The smut balls occur mostly on ears andsometimes on both ears and tassels.Chlamydospores collected from natural dissemination showed a highpercentage of germination,but those collected from inner part of thesorus were low in germination.Although...

The head smut[Sphacelotheca reiliana(Kühn)Clint.]of corn is oneof the most important diseases in Bai-Cheng region of Jilin province.The percentage of smut plant is usually about 3-5%,and sometimesover 30%.The symptoms besides the ordinary stunting,rosetto andpolystooling were observed.The smut balls occur mostly on ears andsometimes on both ears and tassels.Chlamydospores collected from natural dissemination showed a highpercentage of germination,but those collected from inner part of thesorus were low in germination.Although it might be carried on seed-coat yet soil transmission is considered to be the main mode of dissemi-nation since the chlamydospores maintained their vitality in soils forthree years.Higher infections might be obtained from the contaminatedsoil.Infections in seedling stage occurred abundantly until 4 leaf stage,and actually decreased since the starting of the 5 leaf stage and noinfection took place at leaf stage.Head smut fungus from corn did not infect sorghum.On the cont-rary corn plants were to be infected by sorghum head smut with a lowrate.The chlamydospores thus produced from corn plants lost the abi-lity to infect sorghum,however infected corn in an increasing rate.Itmight be due to the different physiological races in the smutinoculum.The head smut fungus collected from Shanxi and Xinjiang were weakin pathogenicity and those from Liaoning and Jilin are strong.More than 200 inbred lines and hybrids had been tested for theirresistance to head smut in field plots.The high resistant varieties werealmost immune.The resistance of maternal plants had more importantinfleunce to next generations.Over hundred fungicides tested for seed treatment,a few of themshowed 70% controlling effects and were not stable in different years.Most fungicides only showed 50% controlling effects.

玉米丝黑穗病是白城地区的重要病害,一般发病率为3—5%,重者高达30%以上,是生产上急待解决的问题。其症状以正常型为主,有时出现矮化型、矮化丛生型和多分蘖型等特异症状。病株以雌穗为黑穗、雄穗为健穗及雌雄穗皆为黑穗者居多。病穗上自然脱落的厚垣孢子萌发率高,病穗内的萌发率明显降低。此病为系统侵染病害,种子及土壤均可带菌传病,以土壤带菌为主,属土传病害。厚垣孢子在土壤里能存活三年,土壤带菌量越多,菌土覆盖种子越厚,发病率越高。丝黑穗病菌侵染玉米幼苗时间较长,从种子萌芽到四叶期最易侵染,五叶期后,侵染明显下降,八叶期后不再侵染。在幼苗叶片上接菌不能侵染致病。玉米丝黑穗病菌不能侵染高梁。高梁丝黑穗病菌能侵染玉米,但侵染率甚低。侵染玉米后的病菌,不再侵染高梁,只侵染玉米,且致病力明显增强。两菌是同一菌种的不同生理型。用来自九个省、市的丝黑穗病菌接种于不同抗性的自交系鉴定寄主,其致病力不同,陕西和新疆的致病力弱,辽宁和吉林的致病力强。在田间人工接种条件下,鉴定了二百余份自交系和杂交种的抗病性,品种间有明显差异,高抗的近于免疫,高感的发病率在90%以上。抗病性遗传规律表现为双亲高抗的,其后代亦抗,以母本的抗病性起主导作用。选...

玉米丝黑穗病是白城地区的重要病害,一般发病率为3—5%,重者高达30%以上,是生产上急待解决的问题。其症状以正常型为主,有时出现矮化型、矮化丛生型和多分蘖型等特异症状。病株以雌穗为黑穗、雄穗为健穗及雌雄穗皆为黑穗者居多。病穗上自然脱落的厚垣孢子萌发率高,病穗内的萌发率明显降低。此病为系统侵染病害,种子及土壤均可带菌传病,以土壤带菌为主,属土传病害。厚垣孢子在土壤里能存活三年,土壤带菌量越多,菌土覆盖种子越厚,发病率越高。丝黑穗病菌侵染玉米幼苗时间较长,从种子萌芽到四叶期最易侵染,五叶期后,侵染明显下降,八叶期后不再侵染。在幼苗叶片上接菌不能侵染致病。玉米丝黑穗病菌不能侵染高梁。高梁丝黑穗病菌能侵染玉米,但侵染率甚低。侵染玉米后的病菌,不再侵染高梁,只侵染玉米,且致病力明显增强。两菌是同一菌种的不同生理型。用来自九个省、市的丝黑穗病菌接种于不同抗性的自交系鉴定寄主,其致病力不同,陕西和新疆的致病力弱,辽宁和吉林的致病力强。在田间人工接种条件下,鉴定了二百余份自交系和杂交种的抗病性,品种间有明显差异,高抗的近于免疫,高感的发病率在90%以上。抗病性遗传规律表现为双亲高抗的,其后代亦抗,以母本的抗病性起主导作用。选百余种农药处理种子,筛选结果:个别药剂防效有高达70%以上者,但年度间效果不稳定,多数药效稳定在50%左右。

Since 1974, a minute egg parasite, Trichogramma dendrolimi has been introduced into Yichun Forest Region to control the larch caterpillar in the egg stage, but the controlling effect is not significant.Statistical analysis of relevant data indicates that, whether the minute egg parasite is released or not, there is no significant effect on the proportion of parasitized larch caterpillar during the egg stage in the larch forest.In spite of the continuous release of the minute egg parasite for nine...

Since 1974, a minute egg parasite, Trichogramma dendrolimi has been introduced into Yichun Forest Region to control the larch caterpillar in the egg stage, but the controlling effect is not significant.Statistical analysis of relevant data indicates that, whether the minute egg parasite is released or not, there is no significant effect on the proportion of parasitized larch caterpillar during the egg stage in the larch forest.In spite of the continuous release of the minute egg parasite for nine years in Nacha, the larch caterpillar has a serious outbreak as well as in other parts of Yicun Region. The minute egg parasite cant neither decrease the degree of outbreak nor delay the time of the outbreak. A year later, the area of the larch stand infected by the larch caterpillar and the density of this pest decrease rapidly as same as in ther parts of Yichun Region. Moreover, the extent of decreasing is practically same.The introduction of this minute egg parasite does not change the process quantitative variation of the population and its variation range.Formerly, since there were no reliable method inspection and confusion of infective ability and controlling, the effect of controlling the larch caterpillar by the minute egg parasite was overestimated.The reason of the failure of controlling the larch caterpillar by its parasite is the introduction of the parasite without evidence and scientific analysis. The quality of release, inbreeding of the parasite and the decrease of infective ability are due to its parasitism in the egg of the tussah.

利用赤眼蜂防治松毛虫国内外有很多报导,但对其释放效果始终存在争议。有的认为神效无比,完全可以大面积推广;有的认为效果很差,盲目推广徒劳无益。到底怎样?我们认为,必须认真地调查,反复地研究,以实事求是的态度,说明赤眼蜂的真实价值。 为了尽快取得赤眼蜂防治松毛虫的统一意见,为生产实践提供可靠的科学依椐,本刊发表“赤眼蜂防治松毛虫效果的调查分析”、“赤眼蜂防治松毛虫效果的研究”两篇文章,望广大读者对此广泛的发表意见。

Nineteen immune sorghum varieties, 2 immune restorer lines, 4 immune and 1 high-resistant male-sterile lines were identified in 1979~ 1982 for their resistance to head smut of sorghum. It was found that immune male-sterile line Tx622A seemed to have dominant gene for resistance as hybrids produced from it with 4003, "Jinfu-1",298/4003 and "Jinhui-75"are immune,hybrid.Tx622A×208 is highly resistant and hybrid Tx622A×"Baiping" is resistant.More than 200 thousand mu of demonstration fields are grown to these resistant...

Nineteen immune sorghum varieties, 2 immune restorer lines, 4 immune and 1 high-resistant male-sterile lines were identified in 1979~ 1982 for their resistance to head smut of sorghum. It was found that immune male-sterile line Tx622A seemed to have dominant gene for resistance as hybrids produced from it with 4003, "Jinfu-1",298/4003 and "Jinhui-75"are immune,hybrid.Tx622A×208 is highly resistant and hybrid Tx622A×"Baiping" is resistant.More than 200 thousand mu of demonstration fields are grown to these resistant high-yielding hybrids in 1981~1983.Very significant controlling effect (ranging from 92% to 100%, averaging 99%) were obtained and the output of sorghum grain went up enormously.

1979~1982年鉴定出19个免疫高粱品种,2个免疫恢复系,4个免疫和1个高抗不育系,其中Tx622A免疫不育系的抗病性似为显性。用Tx622A免疫不育系组配的杂交种Tx622A×4003、Tx622A×晋辐1、Tx622A×298/4003、Tx622A×锦恢75为免疫杂交种,Tx622A×208为高抗杂交种,Tx622A×白平为抗病杂交种。1981~1983年用以上抗病高产杂交种进行了20多万亩的防治示范,对丝黑穗病的防治效果均极为显著,由92~100%,平均99.0%,增产粮食1000多万斤。

 
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