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落叶病     
相关语句
  leaf cast
     The volume loss caused by larch leaf cast can be expressed by the equation: r = 9.8/(1+ e7.3459-0.1x).
     落叶松落叶病在不同危害程度下,每公顷立木材积生长损失量方程为Y=9.8/(1+e~(7.345 9-0.1x))。
短句来源
     Forecast of larch leaf cast and its control threshold
     落叶松落叶病测报与防治指标的研究
短句来源
     The forecasting technique of larch leaf cast was investigated in 1986—1989, and the supporting system for this forecast and its management is established, which can forecast the current values of forecasting factors, make long-and-medium term forecasting for mean disease index and epidemi area, determine control threshold, work out control plan and predict control benefit.
     1986—1989年对落叶松落叶病测报技术进行了系统研究,建立了落叶病测报管理决策支持系统。 本系统可预测该病测报因子当年值;
短句来源
     A STUDY ON THE FORECASTING TECHNIQUE OF LARCH LEAF CAST
     落叶松落叶病预测预报技术的研究
短句来源
     The Developmental Threshold and the Control Threshold of Larch Leaf Cast
     落叶松落叶病发生指标和防治指标的研究
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  larch needle cast
     Primary Research on the Ecological Control of Larch Needle Cast
     落叶松落叶病的生态控制技术研究
短句来源
  “落叶病”译为未确定词的双语例句
     Control Effect of 25% Amistar SC on Apple Alternaria Leaf Spot
     25%阿米西达SC防治苹果斑点落叶病田间药效试验
短句来源
     Fungal diseases especially apple Alternaria Leaf Spot,Marssonina coronaria(Ell.et Daris)Daris,Physalosporapiricola,and Valsa mali are the major diseases on apple, and has become a major limiting factor on apple production.
     苹果真菌病尤其是斑点落叶病(Alternaria Leaf Spot)、褐斑病(Marssonina coronaria(Ell.et Daris)Daris)轮纹病(Physalosporapiricola)、腐烂病(Valsa mali)等是为害苹果的主要真菌病害,成为影响苹果生产的主要限制因子之一。
短句来源
     The result showed that the control efficiency of 70% propineb WP 700-fold,80% mancozeb WP 800-fold and 12.3% diniconazole 1000-fold on the Alternaria mali reached 88.41%,85.99% and 85.24%,respectively.
     结果表明,70%安泰生WP700倍液、80%大生M-45WP800倍液和12.5%烯唑醇1000倍液对苹果斑点落叶病的防治效果分别达到88.41%、85.99%和85.24%;
短句来源
     The field experiment for two years showed that Alternania mail Roberts could be treated well with 1% Polyoxin,whose best fitting was 12.5-15.0 mg/kg(dilutedness 400-600 times),and that it should be used every 15 days from the last ten day of May When seeing disease spot to autumn treetop.
     通过两年田间试验,表明1%多抗霉素水剂对苹果树斑点落叶病有较好的防治效果,最佳用量为12.5~15.0 mg/kg(稀释倍数400-600倍),从5月下旬始见病斑时开始施药,每间隔15 d施药一次,至秋梢停止生长止.
短句来源
     The results showed that they were relatively sensitive to iprodione, procymidone and fosetyl-Al with an EC_(50) value of 0.2885,1.2483 and 5.9912 g mL(-1 )separately.
     结果表明:苹果斑点落叶病菌对扑海因、速克灵和乙磷铝相对较敏感,其平均EC50值分别为0 2885μg·mL-1、1 2483μg·mL-1和5 9912μg·mL-1;
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The needle-cast disease of Laricis leptolepis caused by the fungus Mycosphaerella laricileptolepis Ito, Sato, and Ota, is widely distributed in North-East provinces. The primary infection of the pathogen is mainly the ascospores from the fallen leaves on the ground during the spring. In order to determine the distance of its vertical and horizontal discharge of the spores from the perithecia, a simple spore-trapping method was designed by exposing the glass slides in six directions, placed in three different...

The needle-cast disease of Laricis leptolepis caused by the fungus Mycosphaerella laricileptolepis Ito, Sato, and Ota, is widely distributed in North-East provinces. The primary infection of the pathogen is mainly the ascospores from the fallen leaves on the ground during the spring. In order to determine the distance of its vertical and horizontal discharge of the spores from the perithecia, a simple spore-trapping method was designed by exposing the glass slides in six directions, placed in three different locations and six different heights. Preliminary data showed that the ascospores could reach a height of 55 meters and a distance of 1600 meters along the wind direction. Among the 20 fungicides tested in the field on both young and large trees, 0.5°Bê limesulphur spray employed three times at 2-weeks interval gave a very good control. A ground spray on fallen leaves by six different fungicides did not give satisfactory results although 3°Bê lime-sulphur and lime (20 grams per tree) appeared to be better than dinitro-phosphatemethyl-phenol.

落叶松早期落叶病子囊孢子在空中的扩散,在长春地区,以7月份为盛期。林外水平距1600米及垂直高55米处均可捕捉到不低于林内孢子的数量,其方向符合夏季主风方向。噴药防治的效果,无論成林或幼林,均以0.5度石灰硫黄合剂最好,尤其噴药3次的更佳。地面噴药抑止产生子囊壳,以3度石灰硫黄合剂及每株20克石灰比二硝基磷甲酚效果好。

Biological characteristics of cv. Fuji apple were observed systematically in Dashahe Orchard, Fengxian, Jiangsu, from 1977 to 1982. The results indicate that Fuji is well adapted to the climate and soil of the Old Yellow River Basin Area. The phenological phases of Fuji in this area are flower bud breaking in mid-March, full bloom in mid-April, fruit mature early in October, and leaf-fall in late November, periods of tree growth and fruit development being about 250 days and 175 days, respectively. Fuji is characterized...

Biological characteristics of cv. Fuji apple were observed systematically in Dashahe Orchard, Fengxian, Jiangsu, from 1977 to 1982. The results indicate that Fuji is well adapted to the climate and soil of the Old Yellow River Basin Area. The phenological phases of Fuji in this area are flower bud breaking in mid-March, full bloom in mid-April, fruit mature early in October, and leaf-fall in late November, periods of tree growth and fruit development being about 250 days and 175 days, respectively. Fuji is characterized by more vigorous tree growth and quick formation of tree crown, and higher rates of off-bud and long shoot. Fuji has about 69.9% of total roots distributing in the depth of 20-60 cm, some rooting into more than 1 minsandy soil.Fuji begins bearing early,mainly on long shoots and in axillary in early stage, and bearing points shift to middle and short shoots with growing age. Fuji has the advantages of higher fruit set rate and production, lower fruit-split rate, better quality and storage life of fruit. Dilicious, Golden Dilieious, Fushuai, Shengli, Kuihua and Liaofu can serve as its pollen parents. Fuji is resistant to Glomerella cingulata (Stonem.) Schr. et Spauld. and Marssonina coronaria (E11.et Davis) Davis, however, less to Physalospora piricola Nose and Valsa mali Miyabe et Yamada.

富士苹果在黄河故道地区生长旺盛,树体健壮,树冠扩展较快,新梢年生长量达1米左右。萌芽率和发枝力较强。乔砧根系分布的密集层在20~60厘米。4~5年生开始结果。初期以长果枝结果为主,并有相当数量的腋花芽,以后随树龄逐渐过渡到以短果枝结果为主。连续结果能力弱。座果率高,不疏果易引起大小年结果。自交结实率低,杂交结实率以国光、红星、胜利等品种最高。通常富士的花芽萌动和盛花期分别为3月中旬和4月中旬,果实10月上旬成熟,落叶期11月底。对早期落叶病和炭疽病抗性较强,裂果轻。轮纹病和腐烂病较重,必须加强防治。总之,富士对黄河故道气候土壤具有良好的适应性。

This paper describes the morphology, cultural characteristics and control potential of two antagnistic bacteria, Pseudomonas sp. (P751) and Bacillus cereus (BC752), both isolated from the needles of Pinus massoniana. The two bacteria were found to cause 85.7-99.3% of lysis to the conidia and ascospores of Colletotrichum gloeosprioides. Hypoderma desmazierii. and Fusarium sp.. They were inhabitive to the conidium germination of Pestalotia funerea. Botrytis cinereu and Alternaria sp.. In field trials, the control...

This paper describes the morphology, cultural characteristics and control potential of two antagnistic bacteria, Pseudomonas sp. (P751) and Bacillus cereus (BC752), both isolated from the needles of Pinus massoniana. The two bacteria were found to cause 85.7-99.3% of lysis to the conidia and ascospores of Colletotrichum gloeosprioides. Hypoderma desmazierii. and Fusarium sp.. They were inhabitive to the conidium germination of Pestalotia funerea. Botrytis cinereu and Alternaria sp.. In field trials, the control effects of the two bacteria to C. gloeosprioides. the bark rot (Eucommia ulmoides). anthracnose (Cunninghamia lanceolate), and pine red needle cast (Hypoderma desmazierii) were 52.3-59.8%, 78.9-91,9%, 15.5-52.1% and 87.3-91.4%, respectively. When P751 solution was mixed in the seeds of Masson's pine for aerial sowing, a 55.7% increase of seed germination and 21.2% increase in seedling height were obtained, compared with the nontreated check. The two bacteria were resistant to 7 fungicides and insecticides, and were safe to human and animals.

假单胞菌(代号P751)和蜡状芽孢杆菌(代号BC752)是从马尾松叶上分离的两株杆状细菌,对松赤落叶病、泡桐炭疽病、镰刀菌等5种林木病菌孢子有溶解作用,溶菌率达85.67~99.27%;对松赤枯病等3种病菌孢子萌发有抑制作用;对多种化学农药具有抗性。田间试验,防治泡桐炭疽病、松赤落叶病、杜仲环剥烂皮等5种林木病害具有不同程度的效果。经用两菌液拌种飞机播种造林试验,使马尾松叶枯病降低27.55~72.25%,出苗率有所提高。这两株杆菌对人畜基本安全。

 
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