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leaf senescence in Chinese

Pronunciation:
How to pronounce "leaf senescence""leaf senescence" in a sentence

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  • 葉的衰老

Examples

  • Effect of nitrogen application on flag leaf senescence and yield of spring wheat
    氮素施用方式對(duì)春小麥花后葉片衰老與產(chǎn)量的影響
  • Effect of n application rates on leaf senescence and its mechanism in maize was studied by methods of field experiment , plant analysis and electron microscopy examination
    采用田間試驗(yàn)、植株分析及電鏡檢測(cè)方法研究了氮肥用量對(duì)玉米葉片衰老的影響及其機(jī)制。
  • The results showed that both inadequate and excessive nitrogen application accelerated the decreasing process of leaf area index ( lai ) and chlorophyll content at later growth stage , which led to earlier leaf senescence
    結(jié)果表明，氮肥用量不足或過量均加速了生長后期葉面積系數(shù)及穗葉葉綠素含量的下降進(jìn)程，使葉片提早衰老，但二者作用機(jī)制不同。
  • This paper reviewed the application of transgenic technique to tomatoes , introduced transgenic tomatoes with characters of delayed fruit and leaf senescence , disease and insect resistance , herbicide resistance , adversity resistan ce and good fruit quality
    綜述了轉(zhuǎn)基因技術(shù)在培育延熟番茄、抗病蟲番茄、抗除草劑番茄、抗逆番茄、改進(jìn)番茄品質(zhì)和延緩葉衰老番茄等方面的研究進(jìn)展。
  • Large - scale hydrolysis of proteins occurs early in leaf senescence and is likely to dependent on the integrated action of groups of enzymes . the substrate for proteases in senescing leaves includes mainly enzymes and membrane proteins that function in photo synthesis
    類囊體膜上結(jié)合的蛋白酶主要分為需能蛋白酶和不需能蛋白酶，參與類囊體膜蛋白和類囊體腔蛋白成熟時(shí)的加工以及外因?qū)е碌鞍踪|(zhì)功能喪失時(shí)的降解。
  • When inadequate n was added , the chloroplast structure in mesophyll cell was damaged in ear leaf , the amount of carbohydrate decreased in mestome sheath , and excessive n - redistribution and n - transportation to grain from vegetative mass appeared , which resulted in earlier leaf senescence . excessive n application led to too high activity of nitrate reductase , excessive vigorous nitrogen metabolism and too much exhaustion of carbohydrate in ear leaf , which resulted in the lack of enough carbohydrate in the lower leaf , meanwhile , the expansive chloroplast grana lamellae in leaf mesophyll cell and starch grain without nuclear in mestome sheath cell was observed , which led to the decrease of chlorophyll content and photosythetic capacity in maize leaf , then the early senescence occured
    氮肥用量不足導(dǎo)致穗葉葉肉細(xì)胞葉綠體結(jié)構(gòu)性差，維管束鞘細(xì)胞碳水化合物累積減少,營養(yǎng)體氮素再分配率大而引起葉片早衰；而過量供氮?jiǎng)t導(dǎo)致生長后期硝酸還原酶活性過高，氮素代謝過旺，消耗了大量碳水化合物，以致下位葉不能得到充足的碳水化合物供應(yīng)而提早脫落，同時(shí)葉肉細(xì)胞葉綠體片層結(jié)構(gòu)膨脹，呈“肉汁化”特征，維管束鞘細(xì)胞淀粉粒大量消耗，無核淀粉粒出現(xiàn)，從而葉片葉綠素含量下降，光合能力降低而出現(xiàn)早衰。

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