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temperature and light
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  温度和光照
    COMBINED EFFECTS OF TEMPERATURE AND LIGHT ON THE EXPERIMENTAL POPULATION OF THE CARMICE M|TE, Tetranychus cinnabarinus(ACARINA: TETRANYCHIDAE)
    温度和光照对朱砂叶螨实验种群的综合效应
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    Diurnal changes of water potential in apricots were mainly controlled by changes of saturation vapour pressure deficit(VPD)(or relative humidity),air temperature and light in- tensity in a day.
    杏树(Prunus armeniaca L.) 叶水势的日变化主要受控于一天中水汽压饱和亏(VPD)(或相对湿度)、大气温度和光照强度的变化。
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    Under the illuminated anaerobic conditions. the growth culture and resting cells of the three phototrophic bacteria could use organic acids and produce hydrogen and sometimes CO2. The influenee of different pH values,temperature and light intensity on photoproduction of H2 were also studied.
    在光照厌氧条件下,三株光合细菌的生长培养物和静止细胞都能利用有机酸产氢,有时还伴随有CO2产出。 同时试验了不同pH值、温度和光照强度对光产氢的影响。
短句来源
    Temperature and light have different effects on the induction of style_stigma_like structure from anther's filament of C.
    温度和光照在不同激素水平下对雄蕊柱头状物诱导的影响不同。
短句来源
    With the decreasing of SMC,the sensibility to temperature and light of seeds and restriction of low temperature to germination was increasing when germinating.
    随着含水量的降低 ,种子萌发时对温度和光照的敏感性升高 ,低温对种子萌发的抑制作用加强 ;
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  光温
    Effect of four organic solvents,including acetone (90),alcohol (95),N,N-dimethylformanmide and mixture solution of alcohol and acetone (V/V=1∶1) under the different conditions of temperature and light and pretreatments of samples,was evaluated on the extraction efficiency of chlorophyll from maize leaves.
    以玉米叶片为材料,研究了体积分数80%丙酮、体积分数95%乙醇、N,N-二甲基甲酰胺(DMF)、乙醇-丙酮(体积比1∶1)混合液4种浸提液,不同光温条件和不同样品预处理方式对叶绿素浸提的影响。
短句来源
    Effects of Temperature and Light Intensity on Physiological Characteristics of Flag Leaf and Grain Weight of Wheat
    不同光温条件对小麦旗叶生理特性及粒重的影响(简报)
短句来源
    Influence of temperature and light on the growth and development of Tenodera angustipennis and related preying functional responses
    光温条件对狭翅大刀螳生长发育的影响及其捕食功能研究
短句来源
    Numerous plantlets were able to be produced by culture under regulated temperature and light conditions.
    通过控制光温条件,可迅速再生植株。
短句来源
  温度与光照
    EFFECT OF TEMPERATURE AND LIGHT ON THE SPORE PRODUCTION OF THE ENTOMOPHTHORALEAN FUNGUS ZOOPHTHORA ANHUIENSIS
    温度与光照对安徽虫瘟霉产孢格局的影响
短句来源
    Tenodera angustipennis was raised under laboratory conditions to study the influence of temperature and light on the growth and development of its nymphs. The functional responses of T.
    室内条件下饲养狭翅大刀螳 (Tenoderaangustipennis) ,研究温度与光照两个因子对狭翅大刀螳生长发育的影响 ,同时考察狭翅大刀螳若虫对不同密度小菜蛾幼虫与成虫及萝卜蚜的捕食功能反应 .
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  “temperature and light”译为未确定词的双语例句
    Effects of High Temperature and Light on the Structure and Function of Photosystem Ⅰ
    高温和光照对光系统Ⅰ结构与功能的影响
短句来源
    The culture condition(controlled temperature and light:(25±1)℃ and 2000-2500 lx for 12 h/day)in sand media resulted in a shortest sporophyte formation time,87 days after sporaphyte was inoculated.
    在培养室[(25±1)℃恒温和每天2000~2500lx12h光照]沙基质中,从孢子播种到形成孢子体时间最短,为87d;
短句来源
    A strain with the highest content of β carotene was collected from 3 strains of Dunaliella salina. The result of cross experiment showed that the effect extents of environmental factors on the growth and the β carotene accumulation of Dunaliella salina were respectively NaHCO 3>light> salinity>FeCl 3>KNO 3>K 2HPO 4>trace element>temperature and light>salinity> KNO 3> temperature >K 2HPO 4>NaHCO 3>FeCl 3>trace element.
    从收集到的 3株盐藻中筛选到一株 β 胡萝卜素含量最高的品系 ,对其进行正交实验的结果表明 ,环境因子影响细胞生长的顺序为NaHCO3 >光照 >盐度 >FeCl3 >KNO3 >K2 HPO4>微量元素 >温度 ,影响细胞 β 胡萝卜素累积顺序为光照 >盐度 >K2 NO3 >温度 >K2 HPO4>NaHCO3 >FeCl3 >微量元素。
短句来源
    No obvious changes in the PSII activities within the same range of temperature and light intensity. A slightly high activity of PSII from sporophytes was detected at 18 ℃ and 2 320 lx, where oxygen evolution was 499 μmol/(mg. h), while the relatively higher activity of PSII from gametophyte was 573 μmol/(mg. h), obtained at 13℃ and 2 800 lx.
    而孢子体和配子体的PSII活性随温度和光强的变化趋势不明显,孢子体PSII活性在温度18℃,光强为2 320 lx 时最高,配子体PSII活性在温度13℃,光强为2 800 lx时最高。
短句来源
    EFFECTS OF CHILLING TEMPERATURE AND LIGHT ON PHOTOSYNTHESIS IN RICE FLAG LEAVES AT MILKY STAGE
    低温和光对灌浆期水稻剑叶光合作用的影响
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  temperature and light
A leading role of neuropeptides and their effects on the developmental rate and morphogenetic variation under the influence of temperature and light factors are suggested.
      
The effect of pretreatment temperature and light intensity on recovery of the photosynthetic apparatus and its resistance to photostress and repeated heat shock is examined.
      
By comparing the parameters of temperature and light conditions where fruits grow with the GSH contents in them, the mutual relationship was disclosed.
      
Responses to temperature and light significantly regulated behaviour in the field.
      
The influence of temperature and light regime on the feeding intensity of Tetranychus urticae (Koch) (Acari: Tetranychidae) was studied on bean plants.
      
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Photosynthetic characteristics of the leaf of Sotaria italica (L) Beauv. were studied in three respects: leaf anatomy, cell ultrastructure, and photosynthetic rate of flag leaves. This was done in order to determine the pathway of photosynthetic carbon assimilation of S. italica Some positive results were obtained: (ⅰ) Leaves in the three varieties of S. italica under study possess Kranz type leaf anatomy, characterized by alayer of bundle sheath cells surrounding the vascular tissue. This layer contains a lot...

Photosynthetic characteristics of the leaf of Sotaria italica (L) Beauv. were studied in three respects: leaf anatomy, cell ultrastructure, and photosynthetic rate of flag leaves. This was done in order to determine the pathway of photosynthetic carbon assimilation of S. italica Some positive results were obtained: (ⅰ) Leaves in the three varieties of S. italica under study possess Kranz type leaf anatomy, characterized by alayer of bundle sheath cells surrounding the vascular tissue. This layer contains a lot of larger chloroplasts which are centrifugally located inside the cells. Mesophyll cells surround the bundle sheath radiately. (ⅱ) Ultramicroscopy proved that structural dimorphism of chloroplasts is extreme in S. italica. The mesophyll chloro plasts of which are granal and prossess peripheral reticulum. The bundle sheath chloro plasts, however, lack grana. (ⅲ)The photosynthetic rate of the intact flag leaves averaged 35 mg CO_2~-.dm~(-2)hr~(-1), which is higher than the general level of C_3 species. All of these three characteristics indicate the typical features of C_4 photosynthetic pathway. This thesis also reviews the literature conrcerning the photosynthetic character istits of S. italica. It is concluded from the following seven aspects that this species possesses the C_4 syndrome: (1) C_4-dicarboxylic acids as the dominant initial products of photosynthesis. (2) Kranz type leaf anatomy and narrower intervienal distance. (3) Structural dimorphism of chloroplasts and peripheral reticulum in mesophyll chloroplasts. (4) Higher ~(13)C/~(12)C ratio. (5) Activity levels and compartmentalization of PEPC and RuBPC, and the patterns of the promotion and inhibition of CO_2 fixation in bundle sheath chloroplasts by the metabolic intermediates of photosynthesis. (6) Enzymic activity and physiological features concerting photorespiration tallying with C_4 features. (7) Higher photosynthetic rate. The photorespiration rate and physiological features tally basically with C_4 featu res, but are slightly higher than the levels reported for other typical C_4 species such as sorghum and corn. A possible explanation is presented. The phenomenon stated above is perhaps associated with the fact that S. italica is a C_4 species originated in the temperate zone. S. italiia was more often evolutionarily subjected to water and nitrogten stresses and a biotic stress, However, the evolutionary stresses that reduce pho torespiration in the temperate zone are relatively lower than those in thetropical zone, because the temperature and light intensity are not very high in the former case. S. italica is a kind of crop which has not been strongly affected by modern techniques of plant breeding. Its coefficient of economic yield averages only 0.35. It is reasonable that breeding efforts to improve morphological characteristics of the plant and enhance the storage capacity of the ear should be the bases of future breeding programs for raising photosynthetic efficiency.

为了研究谷子[Setaria italica(L·)Beauv·]的光合作用碳素同化途径,本文对该植物的叶片解剖特征和细胞亚显微结构做了观察。试验结果表明: (1) 谷子具有典型的Kranz型叶解剖特征。 (2) 谷子叶片中存在着二形叶绿体。MC叶绿体含有清晰的基粒和周质网,而VBS叶绿体没有基粒,但是有大量的淀粉粒。这两方面都显示了C_4植物的特征。本文对有关的文献做了综述,从七个方面确定谷子是C_4植物:①光合初产物以四碳二羧酸为主;②Kranz型叶解剖特征和窄的叶脉间距;③二形叶绿体和周质网;④高的~(13)C/~(12)C比值;⑤PEPC和RuBPC的活性水平,分室隔离以及光合代谢中间产物对VBS叶绿体固定COz作用的促进和抑制;⑥低光呼吸;⑦较高的光合强度。谷子光呼吸和与光呼吸有关的生理指标基本符合C_4特征,但稍高于典型C_4植物的水平,这可能和谷子是温带起源的C_4种有关。它在进化过程中所迂到的温度和光照条件对降低光呼吸作用的进化压力相对比热带环境的要小一些。谷子受现代育种技术的影响还比较少。当前应以改善植株的形态特征和扩充结实器官的容纳能力,提高经济系数作为进一步直接提高光合效率的育种基础。

The leaves of wheat seedlings growing in nitrate deficient medium were used to study the effect of temperature on the formation of nitrate reductase activity(NRA).In yonug seedlings the influence of temperature on NRA formation was 1°<10°<25°> 31°.In several plant tissues the NRA could be induced by nitrate but the inducibility of NRA was varried with age of wheat seedlings,temperature and light intensity.The younger leaves had the higher inducibility of NRA.On the other hand,the effect of 6BA on acceleration...

The leaves of wheat seedlings growing in nitrate deficient medium were used to study the effect of temperature on the formation of nitrate reductase activity(NRA).In yonug seedlings the influence of temperature on NRA formation was 1°<10°<25°> 31°.In several plant tissues the NRA could be induced by nitrate but the inducibility of NRA was varried with age of wheat seedlings,temperature and light intensity.The younger leaves had the higher inducibility of NRA.On the other hand,the effect of 6BA on acceleration of inducibility was significant in old leaves.The favourable tem- perature(25℃)for protein synthesis was also optimal for the effect of 6BA on stimu- lation of NRA.The effect of 6BA disappeared at 1℃ because the synthesis of protein could not take place.But induction of NRA by nitrate took place at 1℃ significantly. These results supported our previous suggestion,there were two steps involved in the process of NRA formation.First step was to synthesize the NR precusor.It could be accelerated by 6BA.Second step was the activition of NR precusor with nitrate.

以小麦幼苗叶片为材料,研究了温度对诱导硝酸还原酶(NR)活性的影响。在自来水中培养的麦苗叶片中,NR 活力极低,经 NO_3~-处理后,活力迅速升高。温度对 NR 活力的影响是1℃<10℃<25℃>31℃。在自来水中生长较久、老化的麦苗中,NR 活化的最适温度从25℃下降到10℃。在 NO_3~-诱导前6BA 预处理,可使老化麦苗中锈导 NR 活化的最适温度从10℃恢复到25℃。6BA 对 NR 活化的促进作用在25℃下明显,在10℃下作用很小,在1℃下完全消失;而 NO_3~-诱导 NR 活化的作用,在1℃下仍明显可见。结果表明 NO_3~-和6BA 在诱导 NR 活化中的作用有所差别。

In order to evaluate the effects of important ecophysiolorical factors, such as light intensity, temperature, relative humidity, leaf structure(SLW, specific leaf weight; and SLA, specific leaf area) etc., on the net photosynthetic rate(Pn) of Gordonia under natural conditions, the diurual and seasonal variations in Pn are measured with the improved dry-weight method.The results show that the diurnal variation in Pn on sunny days in spring, summer, and autumn assumes the shape of a bimodal curve, which has two...

In order to evaluate the effects of important ecophysiolorical factors, such as light intensity, temperature, relative humidity, leaf structure(SLW, specific leaf weight; and SLA, specific leaf area) etc., on the net photosynthetic rate(Pn) of Gordonia under natural conditions, the diurual and seasonal variations in Pn are measured with the improved dry-weight method.The results show that the diurnal variation in Pn on sunny days in spring, summer, and autumn assumes the shape of a bimodal curve, which has two peaks, one in the morning and the other in the afternoon, with midday depression in between. However, in winter, Pn shows an unimodal pattern. The day average of Pn is 9.00mgdm-2 h-1 from May to November and the maximum value (23.44mgdm-2 h-1) is observed at the end of August.The curve of seasonal variations in Pn parallels, to some degree, that of the seasonal temperature. Three marked parts can be clearly distinguished. The first one lasts from January till May, in which Pn increases graadually with increasing temperature. The second one lies between May and October, and shows great fluctuation. The third period begins from October, and the Pn decreases with decreasing temperature.It is suggested that temperature and light intensity were the two master limiting ecological factors affecting Pn, and that relative humidity, chlorophyll contents and SLW have only a little on it. The relationship between temperature and Pn can be described by an asymetric bell-shaped curve, on which the three cardinal temperature of Pn can be seen: the minimum at 4-5℃, the optimum at 25-30℃, or slight higher than 30℃, and the maximum over 30℃. The light saturation point of Pn is 70,000 1x, whereas the light compensation point is 3,000lx or so. Within the optimum temperature 25-30℃, Pn is largely controlled by light intensity and positively related to it. Once below or over it, Pn is mainly determined by temperature and positively or negatively associated with it.That Gordonia is a light-demanding but fairly shade-tolerant tree species is demonstrated by shade experiment as well.

为了探讨在自然条件下重要生理生态因子,如光照强度、温度、相对湿度、叶结构(SLW,单位叶面积干重;SLA,单位叶面积率)等对四川大头茶净光合作用(Pn)的影响,本文采用改良半叶法测定四川大头茶净光合作用日变化和年变化,并结合遮阴实验详细研究了生理生态因子与Pn的关系.本文研究结果可为营造和管理亚热带常绿阔叶林和亚热带常绿针阔混交林提供一定的理论依据.实验结果表明:春、夏、秋三季晴天,Pn日变化呈双峰曲线型.即上午和下午各出现一次Pn高峰,峰谷则是Pn的中午降低现象.而冬季晴天Pn呈单峰曲线型,高峰出现在14点左右.5至11月Pn日均值为9.00mgdm~(-2)h~(-1).所测最高Pn值(23.44mgdm~(-2)h~(-1))出现在8月底.一定程度上,Pn的年变化曲线与温度年变化曲线相似,可以明显地区分为三部份:第一部份为1月到5月,Pn随着温度的逐步上升相应增高;5月到10月为第二部份,此期间,Pn波动较大.5月初Pn较 低,可能是新叶角质层未完全发育成熟,因而比成熟叶对温度更为敏感的缘故.7月中旬Pn低则是连续较高温度结果;第三部份从10月到12月,Pn随着温度的下降而降低.Pn季节变化显著,与植物...

为了探讨在自然条件下重要生理生态因子,如光照强度、温度、相对湿度、叶结构(SLW,单位叶面积干重;SLA,单位叶面积率)等对四川大头茶净光合作用(Pn)的影响,本文采用改良半叶法测定四川大头茶净光合作用日变化和年变化,并结合遮阴实验详细研究了生理生态因子与Pn的关系.本文研究结果可为营造和管理亚热带常绿阔叶林和亚热带常绿针阔混交林提供一定的理论依据.实验结果表明:春、夏、秋三季晴天,Pn日变化呈双峰曲线型.即上午和下午各出现一次Pn高峰,峰谷则是Pn的中午降低现象.而冬季晴天Pn呈单峰曲线型,高峰出现在14点左右.5至11月Pn日均值为9.00mgdm~(-2)h~(-1).所测最高Pn值(23.44mgdm~(-2)h~(-1))出现在8月底.一定程度上,Pn的年变化曲线与温度年变化曲线相似,可以明显地区分为三部份:第一部份为1月到5月,Pn随着温度的逐步上升相应增高;5月到10月为第二部份,此期间,Pn波动较大.5月初Pn较 低,可能是新叶角质层未完全发育成熟,因而比成熟叶对温度更为敏感的缘故.7月中旬Pn低则是连续较高温度结果;第三部份从10月到12月,Pn随着温度的下降而降低.Pn季节变化显著,与植物生长、发育密切相关.除秋季外,春、夏、冬三季的Pn值与当年生枝条的伸长速率呈正相关.秋季植物的开花极大地减慢了枝条的伸长.生理生态因子与

 
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