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插叶
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  s leaves stained
     A experiment on propagation of Ginkgo's leaves stained with ABT rooting powder
     应用ABT生根粉进行银杏插叶繁殖试验
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  “插叶”译为未确定词的双语例句
     The Propagation of Fiveleaf Gynostemma (Gynostemma pentaphyllum)by Leaf Cutting in Autumn
     秋季插叶繁殖绞股蓝
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     pentapyyllum propagated by leaf cuttingis 2.99 times as much as that by stem cutting in the same year.
     秋季插叶繁殖绞股蓝的茎叶年产量要比当年用茎扦插增产2.99倍。
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  相似匹配句对
     The Propagation of Fiveleaf Gynostemma (Gynostemma pentaphyllum)by Leaf Cutting in Autumn
     秋季繁殖绞股蓝
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     The Comparative Experiment about the Cuttage-seedling with Leaf of Sedum Speetablile Cav Carmen in Different Bedsoil
     不同基质景天育苗对比试验
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     The Concentrate of leaf's Nutrient
     营养素浓缩物
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     THE CLASSIFICATION OF LEAF BEETLES
     甲的分类
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     Stratagem of Jump the Queue
     位战略
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  leaf cutting
Perception of carbon dioxide and other "air-condition" parameters in the leaf cutting antAtta cephalotes
      
1.Leaf cutting ants (Atta cephalotes and Acromyrmex octospinosa) stridulate whenever prevented from moving freely.
      
1.Structure and function of the stridulatory apparatus in leaf cutting ants (especiallyAtta cephalotes) are described.
      
1.Thresholds of sensitivity to vibrational stimuli were determined by recording summated responses from the leg nerves of leaf cutting ants (Atta cephalotes).2.The receptors respond to sinusoidal vibrations from 0.05 to 4(7) kHz.
      
1.The leaf cutting antAtta sexdens stridulates using a file-and-scraper device (Markl 1968).
      
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  cutting leaf
alliodora cuttings is related to photosynthetic activity during propagation, which is itself influenced both by propagator microclimate and cutting leaf area.
      
For a given area, cutting leaf pieces into smaller fragments significantly increased the number of fungal morphospecies recovered.
      


Attacus atlas Linn.one of the largest moth in the world is widely

山蚕的饲养曾流行于华南云开大山两旁,其饲养历史,可能在千年左右,至少可以追溯到百多年前。目前还有饲养,但为数极少.山蚕丝品质优良,可用云开大山群众所创用的方法织绸,也可用为现代纺织工业原料,织成的绸,品质优美。山蚕在广西容县一带每年发生两代;由成虫起算,第一代由4月下旬至8月中旬;第二代由7月中旬起,幼虫于11月份大体结茧完毕,以蛹期越冬。广州一带山蚕每年发生三代;第一代从4月上旬至7月中旬;第二代由6月中旬至9月上旬;第三代由8月下旬起,幼虫于10月分大体结茧完毕,以蛹期越冬。各代卵期约7—9天,幼虫期28—37天,蛹期23—37天,越冬蛹厉期170—236天,成虫寿命4—9天。在春夏季全世代历期为62—92天。雄蛾羽化一般此雌蛾早1——3天。羽化于晚上8时至翌晨黎明前,12时增多,2时以后交尾的蛾极少.脱尾后雌蛾当晚产卵,产卵期一般连续五、六天,每雌蛾平均产卵230.60±93.43粒,在前三天产出的占总产量一般在80%以上,以后的几天卵量减少。蛹体较重的,化蛾后产卵量较轻蛹所化的蛾多,蛹重与产卵量相关系数是γ=0.87。卵壳淡灰而带青绿,母蛾产卵时,分泌粉红色或赤褐色胶质物,粘在卵壳表面,因而使卵壳呈现...

山蚕的饲养曾流行于华南云开大山两旁,其饲养历史,可能在千年左右,至少可以追溯到百多年前。目前还有饲养,但为数极少.山蚕丝品质优良,可用云开大山群众所创用的方法织绸,也可用为现代纺织工业原料,织成的绸,品质优美。山蚕在广西容县一带每年发生两代;由成虫起算,第一代由4月下旬至8月中旬;第二代由7月中旬起,幼虫于11月份大体结茧完毕,以蛹期越冬。广州一带山蚕每年发生三代;第一代从4月上旬至7月中旬;第二代由6月中旬至9月上旬;第三代由8月下旬起,幼虫于10月分大体结茧完毕,以蛹期越冬。各代卵期约7—9天,幼虫期28—37天,蛹期23—37天,越冬蛹厉期170—236天,成虫寿命4—9天。在春夏季全世代历期为62—92天。雄蛾羽化一般此雌蛾早1——3天。羽化于晚上8时至翌晨黎明前,12时增多,2时以后交尾的蛾极少.脱尾后雌蛾当晚产卵,产卵期一般连续五、六天,每雌蛾平均产卵230.60±93.43粒,在前三天产出的占总产量一般在80%以上,以后的几天卵量减少。蛹体较重的,化蛾后产卵量较轻蛹所化的蛾多,蛹重与产卵量相关系数是γ=0.87。卵壳淡灰而带青绿,母蛾产卵时,分泌粉红色或赤褐色胶质物,粘在卵壳表面,因而使卵壳呈现赤褐色。卵在初产时每粒平均重量为10.82毫克.幼虫孵化由上午6时至下午2时,盛孵时为上午9—10时。每批卵前三天孵化率占70——90。幼虫孵出后经约1小时,吃掉卵壳1/3至2/3。幼虫共经六龄,喜独栖,尤以五龄以后更为显著,每枝有10——20片叶子的乌(?)枝条,很难同时容两条以上的五、六龄幼虫。每头幼虫全期总食叶量(以乌(?)叶计算)共326.40片,重量为65.30至98.00克.幼虫活动迟钝,但遇惊扰卽紧缩体躯,腹足及尾足强力附着枝条,甚至被拉断腹足也不放松,因此,野外6——7级大风也难将它从树上吹下。六龄幼虫成熟后,吐丝缀叶片结茧,化蛹其中。茧棕色,略呈卵形,雌虫茧茧层重量可达1.16±0.69克,雄虫茧茧层重1.08±0.046克。幼虫取食的植物,在广西容县一带主要有珊瑚树、牛耳枫、铁冬青、崗柃,当地群众饲养以珊瑚树叶为主。广州地区山蚕食料,主要为乌(?)树叶。山蚕饲育如管理不周,容易诱发细菌性软化病,可导致大批死亡。广州第二造山蚕在平均温度最高的节令渡过,高温严重地影响了幼虫的成活率,因此,山蚕未经温度驯以化前,应该在温度较低的华南山区饲养。本文根据群众蚕筒插叶饲养法及作者的小小经验,提出了山蚕饲育法的纲要.

The honey dew is the last product of aphids' excretion.In 1980,we made asketchy study of the honey dew of cotton aphids so as to provide some new basesfor forecasting and controlling of the pests. In general,the body weight of the first instar cotton aphid is about 25μg, and that of the adult being 320μg.An aphid exbrets the honey dew about 2220μg in all its life,and the amont of excretion increases with its develo- pment.The mymph excrets the honey dew even more freouently and intensi- vely.There is a clear...

The honey dew is the last product of aphids' excretion.In 1980,we made asketchy study of the honey dew of cotton aphids so as to provide some new basesfor forecasting and controlling of the pests. In general,the body weight of the first instar cotton aphid is about 25μg, and that of the adult being 320μg.An aphid exbrets the honey dew about 2220μg in all its life,and the amont of excretion increases with its develo- pment.The mymph excrets the honey dew even more freouently and intensi- vely.There is a clear rule in the honey dew excretion.The amount of exc- retion is more in the daytime,but less at night.For a colony,the peak excretion often synchronizes with the highest temprature all day long.The result labelled ~(14)C has indicated that the total excretion makes up 72 perc ent of the total sucking capacity,even comes up to 90 per cent in a day. The frequency of excretion(the number of the honey dewdrops excreted in a unit time)closely related to such factors as the temperature,sunlight, sugar content of the leaf balde,the humidity of the air and moisture contents of thesoils.Growing cotton in the sand has showed that either to increase or decreaes the nitrogenous fertilizers or to increase nitrogen may raise the productivity of cotton aphids.The effect of the phosphate fertilizer is similar to that of the nitrogenous fertilizer,and it seems that nitrogen is promoted by phosphorous.An excess of the potassium tends to increase the amount of excretion. If the cotton aphids suck on the cotton plants of diff erent varieties, they will differ greatly in the frequency of excreting hnney dew.Whenthey rsuck on a resistant variety,the frequency of excretion will be lower.There- fore,the freqnency of excretion may be used for the determination of the esistibility of aphids of a cotton variety.In addition,we tried to dermine the resistance of cotton plant with the methods of transplanting leaves and labelling them with isotope.

蜜露是蚜虫代谢的最终产物。1980年我们对棉蚜蜜露进行了初步研究,在于为预测预报及防治提供新依据。一龄棉蚜体重25微克,成蚜320微克,一生排蜜量2220微克,随发育而增加。若虫期排蜜频率高,强度大。棉蚜排蜜有明显的昼夜节律,白天多,晚上少,一天中群体排蜜高峰往往与最高温度同步出现。以~(14)C 标记表明,棉蚜排蜜量约为总取食量的72%,在一天内可达90%。棉蚜排蜜的频率(单位时间内排蜜滴数)同温度的高低、光照的强弱、叶片含糖量的多少,空气湿度的大小,以及土壤含水量的高低等因素密切相关。用砂培表明,对棉花增、减氮肥,蚜虫排蜜量都减少,但增氮者繁殖能力提高;磷肥的效应同氮肥相似,似有磷促氮的作用;钾多则排蜜量有增加趋势。棉蚜在不同棉花品种上取食,其排蜜频率差异很大,在具有一定抗性的品种上取食,排蜜频率低。因此,频率可作为测定棉花品种抗蚜性的指标。此外还探索用插叶法、同位素标记法测定成株期抗蚜性。

1.Leaf and petiole explants of 31 varieties of African Violet can be induced to regenerate plantlet on MS+0.1mg/1 BA+0.1mg/1 NAA agar medium within 4—6 weeks.2.Instead of using MS hormone free agar medium,further culturing the explants in MS+ginseng root powder 250 mg/1 liquid medium for another 4 weeks has improved the quantity and quality of the regenerated plantlet.3 A rapid elonal in vitro propagation protocol was described.The number of transplantable plantlet ob- tained by this method was 100—200% more...

1.Leaf and petiole explants of 31 varieties of African Violet can be induced to regenerate plantlet on MS+0.1mg/1 BA+0.1mg/1 NAA agar medium within 4—6 weeks.2.Instead of using MS hormone free agar medium,further culturing the explants in MS+ginseng root powder 250 mg/1 liquid medium for another 4 weeks has improved the quantity and quality of the regenerated plantlet.3 A rapid elonal in vitro propagation protocol was described.The number of transplantable plantlet ob- tained by this method was 100—200% more than that obtained by ordinary method.4 The organogenesis of leaf explants of African Violet was examined by using scanning electron microscopy.The result was described and diseussed.

在试验的33个非洲紫罗兰(Saintpaulia ionantha Wendl.)品种中,有31个品种的叶片和叶柄外植体可在 MS+BA 0.1nag/l+NAA 0.1mg/l 琼脂培养基上再生出有少量根的小植株。按常规的试管繁殖法,需将这些小苗转移到无激素的 MS 琼脂培养基上作第二步培养,以便成长为具较多根的大试管苗,再移出栽种入育苗盆。本研究改用 MS+人参粉250mg/l液体培养基在摇床作第二步培养,提出了一个高效快速的非洲紫罗兰新的试管繁殖法,用此方法可在较短时间内得到比插叶繁殖法多470—780倍、比目前试管培养法多200%的大试管苗。本文还报道了器官发生过程的扫描电子显微镜研究结果。

 
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