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开花前
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  pre-flowering
     Under the condition of this experiment, post-flowering photoperiod response was more sensitive than pre-flowering response in summer-sown soybean varieties , other ecotypes responded more sensitively before flowering than after flowering.
     在试验条件下,南方夏大豆品种开花后光周期反应比开花前更加敏感,其它类型品种开花前光周期反应比开花后敏感。
短句来源
     However, the growig rate was greatly increasing at the stage of between early to middle fast growing and maintaining at high level from middle fast growing to pre-flowering stage.
     红麻的生长速率在旺长初至旺长中期上升最快,旺长中期与开花前都维持较高水平,但旺长后期(7/下—8/上),叶面积系数达最高4左右,个体与群体生长明显不协调,这以后中下部大量叶片转化为消费叶,从而导致8月下旬出现生长速率低谷。
短句来源
     The effects of pre- flowering photoperiodic treatments on the post-flowering-development,yield formation and chemical quality of soybeans were studied.
     试验研究了开花前不同光照处理对大豆开花后的发育、产量形成和品质性状的影响。
短句来源
     Under the condition of this experiment, post-flowering photoperiod response was more sensitive than pre-flowering response in summer-sown soybean varieties, other ecotypes responded more sensititvely or nearly before flowering than after flowering.
     在本试验条件下,南方夏大豆品种开花后光周期反应比开花前更加敏感,其它类型品种开花前光周期反应比开花后敏感或前、后期敏感性接近。
短句来源
     Pre-flowering short day (SD, 12h) treatment promoted post-flowering development of super-early soybean variety Dongnong 36 and decreased the contents of ABA and ZRs in leaves after flowering.
     结果表明,开花前对超早熟大豆品种东农36进行短日处理,明显加快开花后发育速度,降低叶片中的ABA和ZRs含量;
短句来源
  “开花前”译为未确定词的双语例句
     The results were as follows: Pn (about 8.23 CO2μmol/m2·s) under elevated CO2 concentration (600μmol/mol) was 27.1% higher than that under ambient CO2 concentration before flowering;
     结果表明,开花前CO2浓度为600μmol/mol 时,净光合速率(Pn)为8.23 CO2μmol/m2·s,比在大气CO2浓度下高27.1%;
短句来源
     The results showed that grape pollen viability in beginning of blooming period(15 %~20 % flowers bloomed) was 67.05 %~82.42 %,which was obvious higher than that determined 2 days before blooming(6.92 %~10.41 %).
     结果表明:葡萄始花期(15%-20%的花已开放)的花粉生活力为67.05%-82.42%,明显高于开花前2 d的花粉生活力(6.92%-10.41%);
短句来源
     The contents of IAA、GA1+3、ABA and iPAs of cotton ovules colleced on -3,-1,0,+1,+3,+5,+8,+12 days after anthesis in 5 types of Lint and fuzz mutants were examined by using Enzyme Linked Immuno Sorbent Assay(ELISA).
     用酶联免疫法分别测定了开花前3d、1d,开花当天,开花后1、3、5、7、8、12d的5个棉纤维突变体胚珠中GA1+3、IAA、ABA及iPAs的含量。
短句来源
     Fibers can be formed from 6-days-preanthesis cotton ovules which cultured in the medium contained NAA 5 μmol·L-1 and GA3 5. 7 μmol·L-1, indicating that the initiation and the further development of prefiber cells demands appropriate phytohormonal condition.
     开花前6d的胚珠只在添加NAA5μmol·L-1和GA35.7μmol·L-1的培养基中形成了纤维,表明棉纤维原始细胞的起始和进一步发育需要适当的激素条件。
短句来源
     /ha weredone at before blossom 12 days and after full blossom 14 days respectively. Rate of growth was ranging from 21.24%to 26.87%, and had no bad influence on grape quality.
     /hm2,分别于葡萄开花前12 d和盛花后14d两次喷药,增产率可达21.24%~26.87%,且对葡萄品质无不良影响。
短句来源
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  相似匹配句对
     Self-pollination occurs 2-4hr.
     花前2~4h散粉。
短句来源
     Before inflorescence, the day length requirement was not strict.
     花前,对日长要求不严格。
短句来源
     SUNFLOWER OPENING
     太阳花
短句来源
     Of D~Lilacs and Springtime
     丁香花
短句来源
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  pre-flowering
Now we show that 50% removal of these leaves at pre-flowering stage, i.e.
      
With the model mean pre-flowering values of photoperiod and temperature combined additively to account for 90.3% of the variance of 1/f over accessions.
      
The combining ability for GFA was independent of the combining ability for various pre-flowering effects, including grain number, but was related to the combining ability for individual grain mass and harvest index.
      
Drought-stress in sorghum has been characterized at both pre-flowering and post-flowering stages resulting in a drastic reduction in grain yield.
      
In addition, three and four major QTLs responsible for lodging tolerance and pre-flowering drought tolerance, respectively, were detected.
      
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The LD_(50) in mice was found to be 19.4 g/kg and 0.98±0.075 g/kg respectively for the infusion and crude extract of Chou-wu-tung, given by intravenous injections. The subacute toxicity is negligible when the infusion was crally administered to rats (0.25—2.5 g/kg/day) for 60 days, except that some animals showed quietness, slight fall of systolic pressure and soft stool. No apparent toxic effects were observed. A crude extract and infusion of Chou-wu-tung, when injected intravenously at respective dosages...

The LD_(50) in mice was found to be 19.4 g/kg and 0.98±0.075 g/kg respectively for the infusion and crude extract of Chou-wu-tung, given by intravenous injections. The subacute toxicity is negligible when the infusion was crally administered to rats (0.25—2.5 g/kg/day) for 60 days, except that some animals showed quietness, slight fall of systolic pressure and soft stool. No apparent toxic effects were observed. A crude extract and infusion of Chou-wu-tung, when injected intravenously at respective dosages of 50—100 mg/kg and 150 mg/kg, produced primary and secondary falls of blood pressure on anaesthetized rats and dogs, but with intramuscular injection or oral administration, only the secondary fall of blood pressure was apparent. This hypotensive effect might last for 2—3 hours. Intravenous injection of the decoction to anaesthetized animals produced only primary fall of blood pressure, the infusions of alcohol, ether and ,chloroform, given by the same route, did not lower the blood pressure. Twenty-eight renal hypertensive rats were divided into three groups, the first (11 rats) and the second (7 rats) groups were treated with the infusion at respective dosages of 0.5 g/kg/day and 5 g/kg/day, and the third (10 rats) with the crude extract at 50 mg/kg/day. The drug was given to all the rats for 2 weeks by oral administration. Hypotensive effect was observed in 3—10 days after medication, and became more remarkable in the second week of the therapeutic period or the first week after cessation of medication; the blood pressure dropped 57.4%. The blood pressure in most rats returned in 2 weeks, and in some rats in 2—4 days or 4 weeks after the stopping of medication.

1.本文就臭梧桐的一般性质作了实验性研究,结果证明其降血压成分易溶于水,难溶或不溶于乙醚、乙醇和氯仿,对热稳定,在碱性溶液中可被氯化钙沉淀出来。臭梧桐降血压效果可因产地而不同。开花前的和新鲜的臭梧桐降血压作用分别较开花后的和经长时间保存的要强。 2.臭梧桐毒性甚小,其热浸剂和提出物给小鼠静脉注射时半数致死量分别为19.4克/公斤和0.98±0.075克/公斤。给大鼠每天用热浸剂(0.25—2.5克/公斤)灌胃经60天,除少数动物出现安静、轻度收缩压下降和大便变稀外,未发现其他毒性反应。 3.臭梧桐提出物(50—100毫克/公斤)和热浸剂(150毫克/公斤)给麻醉大鼠和狗静脉注射时,可引起两度血压下降,但肌肉注射或经口给药,仅引起第二度降血压作用,其作用可维持2—3小时。静脉注射煎剂(麻醉大鼠和狗实验)仅出现第一度降血压作用,经口给药时无效。乙醚、乙醇和氯仿的浸出液不论静脉注射或经口给药,均不引起麻醉动物的血压下降。给肾型高血压大鼠每天经口投予臭梧桐热浸剂(0.5—5克/公斤)和提出物(50毫克/公斤)时,给药的第3—10天卽口出现血压下降,在给药的第二周和停药后的第一周,血压下降最明显,最大降血压...

1.本文就臭梧桐的一般性质作了实验性研究,结果证明其降血压成分易溶于水,难溶或不溶于乙醚、乙醇和氯仿,对热稳定,在碱性溶液中可被氯化钙沉淀出来。臭梧桐降血压效果可因产地而不同。开花前的和新鲜的臭梧桐降血压作用分别较开花后的和经长时间保存的要强。 2.臭梧桐毒性甚小,其热浸剂和提出物给小鼠静脉注射时半数致死量分别为19.4克/公斤和0.98±0.075克/公斤。给大鼠每天用热浸剂(0.25—2.5克/公斤)灌胃经60天,除少数动物出现安静、轻度收缩压下降和大便变稀外,未发现其他毒性反应。 3.臭梧桐提出物(50—100毫克/公斤)和热浸剂(150毫克/公斤)给麻醉大鼠和狗静脉注射时,可引起两度血压下降,但肌肉注射或经口给药,仅引起第二度降血压作用,其作用可维持2—3小时。静脉注射煎剂(麻醉大鼠和狗实验)仅出现第一度降血压作用,经口给药时无效。乙醚、乙醇和氯仿的浸出液不论静脉注射或经口给药,均不引起麻醉动物的血压下降。给肾型高血压大鼠每天经口投予臭梧桐热浸剂(0.5—5克/公斤)和提出物(50毫克/公斤)时,给药的第3—10天卽口出现血压下降,在给药的第二周和停药后的第一周,血压下降最明显,最大降血压作用可达原值的57.4%。多数高血压大鼠的血压在停药后的第二周恢复,少数在停药的2—4天或4周后恢复。

~~

我们以早丰1号品种的大豆植株为材料,在生育期间内分析根、茎、叶和花荚等器官的干物质、含N化合物、还原糖、蔗糖和淀粉含量的变化。根据各器官干重增长情况,大豆生育可分为三个时期:第一个时期是在开花末期以前,以合成有机物为主,绝大部分有机养料供给营养器官用;第二个时期是在开花末期至幼荚形成期,有机物的合成与有机养料分配到生殖器官同时进行;第三个时期是幼荚形成期以后,主要是把有机养料从营养器官送到生殖器官中去。叶片是营养器官中最重要的部分。它的干物质多,供给花荚的有机养料也最多而且最早。茎在蔗糖和淀粉的积存和分配至花荚的作用也较大。根部不明显。以有机养料百分率来说,大豆植株在开花初期以前积累碳水化合物,但含N化合物减少。到开花盛期,除个别外,各营养器官的主要有机物都下降。结荚期以后,营养器官养料降低,花荚养料增多。以有机养料绝对含量来说,开花之前各器官的有机物累积缓慢,开花期则大量增加可溶性糖和含N化合物,以后淀粉也迅速积累。

The content of pesudolycorine and lycorine in different parts as well as atdifferent stages of development in Narcissus tazetta L. var. chinensis was determinedby TLC. The amount of the alkaloid was calculated using Purdy's equation asrevised by the Shanghai Institute of Entomology. Throughout the year the content of these two alkaloids in both the bulbs and theaerial parts was fluctuating. The maximum accumulation of pseudolycorine andlycorine took place in mid. December. In late March the content of pseudolycorinein...

The content of pesudolycorine and lycorine in different parts as well as atdifferent stages of development in Narcissus tazetta L. var. chinensis was determinedby TLC. The amount of the alkaloid was calculated using Purdy's equation asrevised by the Shanghai Institute of Entomology. Throughout the year the content of these two alkaloids in both the bulbs and theaerial parts was fluctuating. The maximum accumulation of pseudolycorine andlycorine took place in mid. December. In late March the content of pseudolycorinein the bulbs increased rapidly, while the other alkaloids decreased to a low level.It would seem very likely that there was some interconversion of these two alkaloidsor translocation between different plant parts during that time. In the middle of December just before flowering, and in late March, the seasonof rapid growth, the total content of pseudolycorine in the whole plant was muchhigher than in other periods. We suggest therefore to harvest not only the bulbs butthe whole plant in these two periods to extract maximum amount of pseudolycorine.

研究了中国水仙在三月初、六月初、八月中、十月中及十二月中鳞茎中伪石蒜碱、石蒜碱的含量变化,以及十一月下旬至五月中旬水仙地上部及鳞茎中该两种生物碱的月变化。鳞茎及地上部中两种碱的含量在十二月下旬水仙开花前均升高,之后下降;鳞茎中伪石蒜碱含量在三月下旬又迅速上升,石蒜碱却显著下降,四、五月份伪石蒜碱下降,而石蒜碱却上升。地上部中这两个碱,自二月份开始一直下降。伪石蒜碱和石蒜碱的含量变化和水仙生长发育关系密切。在开花后伪石蒜碱和石蒜碱之间消长似有相关性。 建议在十二月或三月全株采收以提取伪石蒜碱,可合理地利用水仙资源。

 
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