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光照     
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  light
    Influence of Temperature And Light Length for Growing of Tetranychus Truncatus Ehara
    温度和光照长度对截形叶螨生长发育的影响
短句来源
    Under different temperature and light conditions,the colony growth and sporulation of Gloeosprium piperatum isolated from pepper were studied on PDA medium.
    通过温度及光照处理,研究了辣椒炭疽菌(Gloeosprium piperatum)在PDA培养基上的最佳产孢条件。
短句来源
    The effect of light on the mycelial growth was not evident and mycelial lethal temperature was 64℃,10min.
    光照对菌丝生长影响不大; 菌丝致死温度为64℃、10min。
短句来源
    The colony diameters at 24hr light, 24hr dark or 12hr lignt and 12hr dark were significantly different after 8 days incubation.
    全黑暗和全光照处理下的菌落直径与12hr光暗交替在p<0.01时差异极显著。
    Weed control effect of paraquat in untilled fields and its influence on the light and yield of rapeseed
    百草枯的控草效果及对光照和油菜产量的影响
短句来源
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  illumination
    The protective activities of TS-86 and TS-109 were tested after being treated at different temperatures, illumination and pH values.
    对TS-86和TS-109进行了不同的温度、pH值和光照处理,测试了它们的稳定性。
短句来源
    2 The optimum combination of condition for cultivating Scenedesmus quadricauda were liquid HB-4 medium, at 25 ± 1℃ , light intensity of 5000 lx/cm2, illumination continuous and cultivating for 96 hours.
    2 藻类培养条件的最佳优化组合是水生4号培养基,温度25±1℃,光照强度5000±500Lx,光-暗周期24hr:Ohr,培养时间为96小时。
短句来源
    At 25±1℃, during continuous illumination , each growth rate of algae reached the highest value.
    在温度为25±1℃,连续光照时,藻类的各个生长量都达到最高值。
短句来源
    10-4g/mL α-T killed all Bursaphelenchus xylophilus in six hours. Under the illumination intensity of 450 Lux, EC50 of α-T was measured as 1.48 10-6 g/mL.
    光照强度为△50Lux时,α-T浓度为10~4 g/ml,6h后将线虫全部毒杀,其EC_(50)=1.48×10~(-6)g/ml;
短句来源
    The colony diameters of diverse isolates atdifferent illumination conditions were not significantly different,the results showedthat the growth of diverse anthracnose pathogens were not strict with light conditions.
    各炭疽病菌在不同光照下的菌落直径和产孢差异不显著,这说明了各炭疽病菌菌丝生长和产孢对光照条件要求不严格,但在同一光照条件下,不同菌株表现存在不一致。
短句来源
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  photoperiod
    The Influence of Temperature and Photoperiod on the Population Growth of Wheat Aphids
    温度和光照对麦蚜种群增长的影响
短句来源
    Under 16 h photo period, 20% relative humility, feeding the Tetranychus urticae with apple leaves in laboratory, 3 experimental population life tables are formed separate under 20℃、25℃and 30℃.
    在光照16 h、相对湿度20%的条件下,通过室内用苹果叶片饲养二斑叶螨,分别组建了其在20℃、25℃和30℃条件下的实验种群生命表。
短句来源
    When moved into a rearing room of 25±1℃, 70-80% RH, 16 hr photoperiod and provided with aphid infested bean seedlings, the overwintering females began oviposition within 24 hr.
    越冬成虫在25±1℃,70~80%RH,16小时光照,供给有蚜苗的条件下当天即可产卵。
短句来源
    Under 26 C and 16 hours photoperiod conditions, the post-diapause development duration (PDDD) of overwintering generation Asian corn borer (ACB) Ostrinia furnacalis (Guenee) of univoltine ecotype in Gongzhuling and Dunhua and bivoltine eco-type in Gongzhuling and Baicheng, Jilin Province were 48. 48 and 44. 43, and 28. 29 and 22. 42 days, respectively.
    在26℃、16h光照条件下,一化性的公主岭和敦化越冬代玉米螟的滞育后发育历期为48.48和44.43d,二化性的公主岭和白城越冬代玉米螟为28.29和22.42d,一化性玉米螟的滞育后发育历期长于二化性20d左右。
短句来源
    Eggs laid by migratory locusts reared under conditions of long photoperiod (LP) (L∶D=14∶10) and short photoperiod (SP) (L∶D=10∶14) were collected. Supercooling points of some eggs were measured using a thermocouple method.
    用热电偶法测定长光照 (L∶D =14∶10 )和短光照 (L∶D =10∶14 )条件下饲养的飞蝗所产卵的过冷却点 ;
短句来源
更多       
  of light
    The effect of light on the mycelial growth was not evident and mycelial lethal temperature was 64℃,10min.
    光照对菌丝生长影响不大; 菌丝致死温度为64℃、10min。
短句来源
    Effect of Light on Chlorophyll Content and Inhibitory of the Infection of Tobacco Mosaic Virus of Nicotiana Glutinosa
    光照对心叶烟叶绿素含量及抑制烟草花叶病毒侵染的影响
短句来源
    Influence of Light on N-dependent Disease Resistance and Its Molecular Mechanism
    光照对N介导的抗病性的影响及其分子机理
短句来源
    2. Influence of light on N/p50-dependent HR and its molecular mechanisms were analysed.
    2.分析了光照对N/p50介导的HR的影响及其分子机理。
短句来源
    The conidia germinate best in water drops at temperatureoe 15°—20° C with pH at 5. 6—6. 6. The function of light qnthe germination is not apparent.
    该菌的分生孢子在温度为15~20℃、pH值为5.6~6.6和有水滴存在条条下,萌发率最高,光照不是分孢子萌发的必要条件。
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  light
In light of Brenti's work on certain R-polynomials, this formula raises interesting questions about the possibility of relating Ext groups between Weyl modules to Kazhdan-Lusztig combinatorics.
      
Light microscopy revealed compressed villi, oedema, mononuclear cell filtration, and vacuolization on the cytoplasm of epithelial cells in the jejunum of hyperlipidemic rats.
      
A seaweed-chamber experiment was performed, indicating that gaseous I2 is one of the important precursors that lead to new particle formation in the presence of solar light in the ambient air at the coastal tidal area.
      
Investigation on the acute biochemical effects of light rare earths on rat serum by NMR-based metabonomic approaches
      
1H-NMR spectroscopy and pattern recognition (PR) method were used to assess the acute biochemical effects of light rare earths.
      
更多          
  illumination
But when it was irradiated under UV illumination or solar irradiation for some time, the catalyst could be reused without loss of catalytic activity.
      
For three tested samples, under UV illumination CCT01 has the highest activity for MB photocatalytic degradation, while in the case of RB, CCT02 is the most active photocatalyst.
      
Under visible light illumination, CCT005 has the highest activity for both MB and RB photocatalytic degradation.
      
After treatment of the mycelium with 5-azacytidine, the protoperithecia formation was accompanied by inversely proportional changes in the formation of conidia, both in the dark and after illumination.
      
A New Type of Adaptation of the Cyanobacterium Spirulina platensis to Illumination Conditions
      
更多          
  photoperiod
Phenotypic manifestations of Vrn(vernalization) and Ppd (photoperiod) genes responsible for transition of bread wheat Triticum aestivumL.
      
Short-term experiments demonstrated that red light illumination is similar to long photoperiod by the effect on the long-day plants.
      
Effect of photoperiod on growth, physiologica and hematological indices of juvenile Siberian sturgeon Acipenser baerii
      
The effect of photoperiod on the growth of juvenile Siberian sturgeon Acipenser baerii has been studied in aquarium experiments.
      
under short photoperiod (day/night, 10/14 h), long photoperiod (16/8 h), and continuous light.
      
更多          
  of light
Investigation on the acute biochemical effects of light rare earths on rat serum by NMR-based metabonomic approaches
      
1H-NMR spectroscopy and pattern recognition (PR) method were used to assess the acute biochemical effects of light rare earths.
      
Serum samples from the rats with the two kinds of doses of light rare earths were obtained after 48 h and analyzed by a 600 MHz 1H-NMR spectrometer.
      
In order to improve the utilization of light, the technologies of implantation of transition metal ions (V+ and Cr+) and electron beam irradiation to deposit noble metal particles (Ag and Pt) were used.
      
Effects of light radiation intensity on photosynthetic characteristics and water use efficiency of Platycladus orientalis and Pi
      
更多          
  其他


High percentage of chlamydospore germination of Neovossia horrida (Tak.)P.& K.with abundant basidiospore production was obtained by placing moistenedspores in a Petri dish with limited supply of water,the dish-cover being inkedblue to insure a favordable light condition.Moistened spores applied on the sur-face of kernels of a growing rice head enclosed in a paraffin paper bag was alsofound to germinate by producing a very short basidium and a large number ofbasidiospores.It is,therefore,concluded that not only...

High percentage of chlamydospore germination of Neovossia horrida (Tak.)P.& K.with abundant basidiospore production was obtained by placing moistenedspores in a Petri dish with limited supply of water,the dish-cover being inkedblue to insure a favordable light condition.Moistened spores applied on the sur-face of kernels of a growing rice head enclosed in a paraffin paper bag was alsofound to germinate by producing a very short basidium and a large number ofbasidiospores.It is,therefore,concluded that not only light but also oxygen isrequired for normal germination of the spores of the rice kernel smut. Results of a series of inoculation experiments conclusively show that thefungus infects rice kernels during the milky dough stage.Basidiospore inoculationgives higher percentage of infection than chlamydospore inoculation. Field observation indicates that the incidence of high percentage of infectionis coincident with the excessive application of nitrogenous fertilizer.Fluctuationof the amount of infection from year to year is probably determined chiefly by theduration of high moisture period from heading to dough stage.There are someevidences of varietal difference in the susceptibility of rice to the kernel smut.

(一)稻粒黑穗病菌厚垣孢子的正常萌发,在外界环境條件的關係上,不僅要求一定的光照,而且需有充分的氧氣供給。至於對水分的要求,只要空氣中?窒喈敐穸?已足供萌发的需要,不一定要有水滴的經常存在。(二)接種試驗證明病原係在水稻的灌漿期侵入種实。在自然界中,這種侵染顯然是通過氣流傳播而實现的。但種子與土壤所荷带的病原菌厚垣孢子,都是侵染的來源。(三)过量的氮素肥料,與高的稻粒黑穗病感染率有密切的關係。(四)稻粒黑穗病发生程度的年份间差異可能主要是决定於抽穗至乳熟期的高濕度的持續時間。(五)初步調查的資料表示水稻品種间具有顯著的感病性差別。

Using potato tubers of Irish cobbler variety naturally infected with X- and Y-virus, the writer compared the concentrations of X-virus in the young sprouts of different seed pieces longitudinally cut from the same tuber and subjected to various temperatures, light and darkness, normal and dereased oxygen tensions during the period of germination. Comparison of the virus concentrations was made by serological precipitin test and local lesion counts on half-leaves of Gomphrena globosa. Thermostat experiments showed...

Using potato tubers of Irish cobbler variety naturally infected with X- and Y-virus, the writer compared the concentrations of X-virus in the young sprouts of different seed pieces longitudinally cut from the same tuber and subjected to various temperatures, light and darkness, normal and dereased oxygen tensions during the period of germination. Comparison of the virus concentrations was made by serological precipitin test and local lesion counts on half-leaves of Gomphrena globosa. Thermostat experiments showed that tubers germinated under 20℃. gave rise to sprouts containing highest amount of X-virus, with a precipitin titer of generally 1:80 to 1:160, reaching a maximum of 1:320, average half-leaf lesions numbered approximately 30. The virus concentrations under 16℃. and 24℃. were very close, both with precipitin titer about half and lesion number about two third of those under 20℃. There was evidently a further decrease of virus conoentration in the sprouts derived from seed pieces germinated under 28℃. The sprouts germinated under darkness gave a precipitin titer ahnost 4 times higher than those germinated under light. No difference in X-virus concentration has been observed among sprouts aerated with 21%, 10%, 5% oxygen during their germination. There was no detectable change of virus concentration, even when root growth from the sprouts was entirely inhibited under decreased oxygen tension. It is not immediately clear whether the above stated factors affect the multiplication of X-virus in the potato sprouts or the mobilization and translocation of the virus already present in the tuber into tte germinating sprouts.

著者曾以感染着X-和Y-病毒的早熟白品种的馬鈴薯块茎,用血清沉淀反应和在千日紅上接种的方法,研究了块茎发芽期間温度、光和氧气对幼芽內X—病毒浓度的影响。在試驗中均用同一块茎的切块作每种条件变化的处理。在定温箱內所做的发芽温度試驗的結果指出,块茎在20℃中发出的幼芽內X-病毒的浓度最高,沉淀滴度一般在1/80—1/160之間,最高的达到1/320,千日紅上平均半叶斑点数目約为30。16°及24℃中的病毒浓度相近,沉淀滴度約为20℃的1/2,斑点数目达20℃的2/3左右。28℃发出的幼芽內病毒浓度最低,平均沉淀滴度約在1/10—1/20之間,平均半叶斑点数目为11.9。块茎在黑暗和光照下发芽的試驗表示,在光照下发出的幼芽內X-病毒浓度显著低于黑暗下发芽的,其沉淀滴度的比例約为1∶4。当块茎在正常空气以及10%、5%的氧气条件下发芽时,沉淀滴度和接种試驗都未发現幼芽內X-病毒浓度的可测定的差異,而在氧分压低的条件下发的芽由于生长量較少,按整芽計算的病毒总量也相应較低。

Considerable difficulties caused by unstable reactions of wheat varieties were encountered by the authors in the study of physiologic specialization of Puccinia glumarum. The fluctuation of varietal reactions was chiefly due to the variation of light and temperature in ordinary green house. It was found that strict control of temperature (constantly at 15℃) and a stable light source were necessary. Fluorescent lamps serves as a good source of cool light, and a daily supply of 16-hours illumination with an intensity...

Considerable difficulties caused by unstable reactions of wheat varieties were encountered by the authors in the study of physiologic specialization of Puccinia glumarum. The fluctuation of varietal reactions was chiefly due to the variation of light and temperature in ordinary green house. It was found that strict control of temperature (constantly at 15℃) and a stable light source were necessary. Fluorescent lamps serves as a good source of cool light, and a daily supply of 16-hours illumination with an intensity of 4,000 Lux is sufficient for normal development of infection-types. Temperature plays most important role among the environmental factors causing the variability of varietal reactions of wheat to stripe rust. In general, wheat varieties become more resistant to stripe rust as the temperature raises from 10℃ upward. The critical temperature at which host reactions changed from susceptible to resistant varied with different combinations of wheat varieties and races of P. glumarum. Eight variety-race combinations out of 60 had their infection types changed from susceptible to resistant at 15℃, 15 combinations changed at 20℃, 18 combinations at 25℃, while 16 combinations had their resistant infection types unchanged under different temperatures. Highly resistant wheat varieties such as Early Premium, Li-Yung 1, Naking 4179 remained resistant to all 4 races tested under a wide range of light intensities, while highly susceptible variety Ycnta 1885 remained susceptible throughout. Other susceptable varieties behaved rather specifically as light intensity and daily length of illumination varied. Infection type, amount of sporulation and range of cnvironmental conditions for sporulation should all be considered as criteria for the exact evaluation of varietal resistance of wheat and pathogenicity of rust races. Race Y6B isolated from wheat vareity Pima-1, has been proved to be a dangerous race, causing Pima strains severely diseased at 10°—20℃, with the capability to sporulate at 25℃. Race Y6, of which the pathogenicity resembled that of race Y6B on 6 differential hosts, had been(?)olated from Shantung and Shansi provinces during 1954—55. These findings correlated well with the breakdown of Pima 1 in resistance to stripe rust over a wide geographic area since 1955. Early Premium, Naking 4197, Liyung 1 and Nungta 6 are highly resistant varieties to race Y6B.

試驗証明温度和光对小麦品种抗条銹病性的影响极大。由于小麦品种对条銹菌不稳定反应所造成生理鑑定小种的困难,基本上可通过严格控制温度和光获得解决。条锈菌生理小种的鑑定最好在15℃恆温和恆光的設备下进行。用日光灯为光源,光強度保持4,000 Lux,每日照射16小时即已足够使小麦品种正常发病。当温度逐漸提高时小麦品种漸由感染变为抵抗。由感染型变为抵抗型的温度轉变点因品种和生理小种的不同組合而有差异,在60个品种小种組合中,自15℃起变为抵抗型的有8个組合,自20℃起变为抵抗型的有15个組合,在25℃下变为抵抗型的有18个組合,在10—25℃温度范围內均为抵抗型的有16个組合。高度抗病的品种如早洋麦、金大4197、驪英一号等在所有光強度(日光40.000 Lux及鎢絲灯与日光灯組成人工光強度为8,000 Lux、6,500 Lux、5,000 Lux、2,500 Lux和1,200Lux.)及各种不同光照时間下(日光灯为光源,4,000 Lux,不同光照时間每日为8、12、16及24小时)均抗病。高度感病品种燕大1885則在所有光強度及各种不同光照时間下均为感染型。孢子产生的数量則...

試驗証明温度和光对小麦品种抗条銹病性的影响极大。由于小麦品种对条銹菌不稳定反应所造成生理鑑定小种的困难,基本上可通过严格控制温度和光获得解决。条锈菌生理小种的鑑定最好在15℃恆温和恆光的設备下进行。用日光灯为光源,光強度保持4,000 Lux,每日照射16小时即已足够使小麦品种正常发病。当温度逐漸提高时小麦品种漸由感染变为抵抗。由感染型变为抵抗型的温度轉变点因品种和生理小种的不同組合而有差异,在60个品种小种組合中,自15℃起变为抵抗型的有8个組合,自20℃起变为抵抗型的有15个組合,在25℃下变为抵抗型的有18个組合,在10—25℃温度范围內均为抵抗型的有16个組合。高度抗病的品种如早洋麦、金大4197、驪英一号等在所有光強度(日光40.000 Lux及鎢絲灯与日光灯組成人工光強度为8,000 Lux、6,500 Lux、5,000 Lux、2,500 Lux和1,200Lux.)及各种不同光照时間下(日光灯为光源,4,000 Lux,不同光照时間每日为8、12、16及24小时)均抗病。高度感病品种燕大1885則在所有光強度及各种不同光照时間下均为感染型。孢子产生的数量則随光強度和光照时間的增加而增多。其他感病品种对光的变动反应較为复杂。衡量小麦品种抗病性和不同小种致病力应同时考虑反应型、孢子堆数量和产生孢子堆的环境条件范围。采自碧螞一号的小种Y_(δB)証明是极为危险的生理小种,由于它在較大温度变差的范围內(10℃—20℃)使碧螞系統的小麦严重感病,并在25℃下仍能产生孢子堆。类似Y_(δB)的生理小种Y_δ过去曾在山东和山西采集的条銹菌标样中发現过,这一事实和碧螞一号在愈来愈广泛的区域內丧失抗銹性的現象是符合的。早洋麦、金大4197、驪英一号及农大6号是对Y_(δB)小种高度抵抗的品种。

 
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