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光合效应    
相关语句
  photosynthetic efficiency
    Effect of Elevated CO_2 Concentration on Photosynthetic Efficiency Soybean under Drought Stress
    CO_2倍增对干旱胁迫下大豆光合效应的影响
短句来源
    EFFECTS OF LIGHT DISTRIBUTION IN THE CANOPY ON PHOTOSYNTHETIC EFFICIENCY AND FRUIT SETTING IN "JINCHEN" ORANGE (Citrus sinensis) TREES
    锦橙树冠光能分布对光合效应与结实的影响
短句来源
  photosynthetic efficiency
    Effect of Elevated CO_2 Concentration on Photosynthetic Efficiency Soybean under Drought Stress
    CO_2倍增对干旱胁迫下大豆光合效应的影响
短句来源
    EFFECTS OF LIGHT DISTRIBUTION IN THE CANOPY ON PHOTOSYNTHETIC EFFICIENCY AND FRUIT SETTING IN "JINCHEN" ORANGE (Citrus sinensis) TREES
    锦橙树冠光能分布对光合效应与结实的影响
短句来源
  photosynthetic efficiency
    Effect of Elevated CO_2 Concentration on Photosynthetic Efficiency Soybean under Drought Stress
    CO_2倍增对干旱胁迫下大豆光合效应的影响
短句来源
    EFFECTS OF LIGHT DISTRIBUTION IN THE CANOPY ON PHOTOSYNTHETIC EFFICIENCY AND FRUIT SETTING IN "JINCHEN" ORANGE (Citrus sinensis) TREES
    锦橙树冠光能分布对光合效应与结实的影响
短句来源
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  photosynthetic efficiency
This corresponded to a photosynthetic efficiency of 8.67% (PAR), which was defined as the percentage of the light energy recovered as biomass (394 kJ/[reactor·d]) to the total light energy received (4545 kJ/[reactor·d]).
      
A similarly high photosynthetic efficiency (8.12% [PAR]) was also attained in the combined presence of 10% CO2, 100 ppm of NO, and 25 ppm of SO2.
      
Under this condition, leaf photosynthetic efficiency was tiptop.
      
This has been suggested as a method of detecting and selecting for increased photosynthetic efficiency among C3 genotypes.
      
An earlier analysis of leaf area and photosynthetic efficiency revealed a diversity of mechanisms between mutants of the same yield group.
      
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The effects of the anti-transpinnts--fulvic acid, NaHSO3 and CaQ2 upon broad bean physiology were determined,The results show that all the reagents have the functions to inhibit stomatal aperture, and decrease transpiration. The concentration of 200 ppm for fulvic acid and 1×10-2 M for both NaHS03 and CaCl2 can inhibit 60% of the stomatal aperture, and decrease the transpiration by 30-40%. The effect time for the anti-transpirants to decrease'transpiration is from H a.m to 18 P.m., during which period the saved...

The effects of the anti-transpinnts--fulvic acid, NaHSO3 and CaQ2 upon broad bean physiology were determined,The results show that all the reagents have the functions to inhibit stomatal aperture, and decrease transpiration. The concentration of 200 ppm for fulvic acid and 1×10-2 M for both NaHS03 and CaCl2 can inhibit 60% of the stomatal aperture, and decrease the transpiration by 30-40%. The effect time for the anti-transpirants to decrease'transpiration is from H a.m to 18 P.m., during which period the saved water acounts for 80% of total water saved for a whole day. The effects of the reagents on tra-nspiraton could maintain for 7 days. The fulvic acid, and NaHSO3 could promote photosynthesis when water stress is less serious.

黄腐酸、NaHSO_3及CaCl_2抗蒸腾剂对蚕豆的生理效应测定结果表明,它们都具有抑制气孔开张、降低蒸腾的作用。200ppm的黄腐酸和1×10~(-2)M的NaHSO_3及CaCl_2可抑制气孔开张度的60%,降低蒸腾30%~40%。抗蒸腾剂降低蒸腾的主要时间是11~18时,这7个h的节水量约占一日内节水量的80%以上。抗蒸腾剂的药效能维持7d左右。黄腐酸和NaHSO_3在水分轻度胁迫时有明显促进光合的效应。

Effects of mixtalol (MTL) on photosynthesis and yield spraying at early flowering stage of rape were studied. The results showed that the foliar spraying of MTL could significantly increase leaf chlorophyll content and photosynthetic rate, prolong leaf longevity and increase green pod surface area. Therefore, the photosynthesis of plants was promoted. which was advantageous to the accumulation of dry matter. Plants treated with MTL could increase the podding percentage. The yield components were also improved,...

Effects of mixtalol (MTL) on photosynthesis and yield spraying at early flowering stage of rape were studied. The results showed that the foliar spraying of MTL could significantly increase leaf chlorophyll content and photosynthetic rate, prolong leaf longevity and increase green pod surface area. Therefore, the photosynthesis of plants was promoted. which was advantageous to the accumulation of dry matter. Plants treated with MTL could increase the podding percentage. The yield components were also improved, and the effective length of main inflorescence, pods per plant, seeds per pod and seed weight per plant were increased. The significant yielding effect were observed, with 18. 2% and 7. 2% increase in yield in the treatments with 4 and 2 ppm MTL, respectively. No significant effects of MTL on seed quality and growth period were observed.

本研究探讨了初花期喷施多元醇对甘蓝型油菜的光合效应及增产效果,结果表明:多元醇能提高叶片叶绿素含量和光合速率,延长后期叶片寿命,增加绿色角果皮面积,从而增强了植株的光合作用能力,提高了油菜的结角率.同时,多元醇能改善油菜的经济性状,增加主花序有效长度、单株角果数、每角粒数和单株粒重,因而增产效果明显.4ppm和2ppm处理的产量分别比对照增产18.2%和7.2%.喷施多元醇对油菜籽的品质无不良影响,对油菜的生育期也影响不大.

Significant differences were noticed in light distribution at different locations in the canopy of sweet orange(Citrus sinensis,cv.“Jinchen”)trees.Light intensity.appeared to have great influence on photosynthesis,fruit yield and fruit quality of the tree.From 11: 00 to 11:30 a.m.,the sunshine was directly on the southeast of the tree canopy with the “relative light received rate”being in the order of south>east>west>north while from 3:00 to 3:30 p.m.,another order of light intensity distribution was observed:south>west>north>east.The...

Significant differences were noticed in light distribution at different locations in the canopy of sweet orange(Citrus sinensis,cv.“Jinchen”)trees.Light intensity.appeared to have great influence on photosynthesis,fruit yield and fruit quality of the tree.From 11: 00 to 11:30 a.m.,the sunshine was directly on the southeast of the tree canopy with the “relative light received rate”being in the order of south>east>west>north while from 3:00 to 3:30 p.m.,another order of light intensity distribution was observed:south>west>north>east.The daily average light intensity appeared in the or- der of outer part of the canopy>inner part of the canopy>central part of the tree crown and Upper part>middle part>lower part of the canopy.The patterns of variation in net photosynthtic rate,photosynthate export rate and fruit yield were significantly correlated with fruit setting,the correlation coefficient r being in the range of 0.9425**to 0.9997**. Average fruit weight in the middle canopy layer was 10%~26% and 20.5%~52.9% great- er than that in the upper and lowerparts of the canopy,respectively.Ascorbic acid content in the fruit also varied with different locations within the canopy,the pattern being middle layer>upper layer>lower layer.The variation in total soluble solids followed a similar pat- tern to that of“relative light received rate”while acid content showed an opposite pattern.

锦橙树冠内各部位光能分布差异显著。光照对光合效应、结果和果实品质有明显的影响。在重庆地区11:00~11:30时,相对光照率南部>东部>西部>北部,15:00~5:30时则南部>西部>北部>东部。全天光强度均为叶幕外层>内层>树冠中心,叶幕上层>中层>下层。净光合速率、光合产物输出率及产量与光照有相似的变化趋势。各方位不同高度叶幕层的着果率与相对光照率呈极显著正相关。中层单果重分别比上、下层果高10%~26%和20.5%~52.9%。果实 Vc 含量,叶幕中层>上层>下层。固形物含量与光照率变化势相似。可食率、果酸变化与单果重相反。

 
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