leaf senescence 中文意思是什麼

leaf senescence 解釋
葉的衰老
  • leaf : n （pl leaves）1 葉；〈集合詞〉葉子；茶葉，煙葉。2 花瓣。3 （書刊等的）一張（兩面）。4 金屬薄片，...
  • senescence : 變老
  1. It affects tuberization, leaf senescence, and dormancy.

    它影響塊莖形成、葉子衰老和休眠。
  2. Like most plant hormones, cytokinins also have other effects, including the prevention of leaf aging, or senescence

    如同大多數植物激素，細胞分裂素很有其他功效，包括阻止葉片老化或衰老。
  3. Effect of nitrogen application on flag leaf senescence and yield of spring wheat

    氮素施用方式對春小麥花后葉片衰老與產量的影響
  4. Effect of nitrogen application on the senescence of flag leaf and yield of rice cultivated in aerobic soil

    氮肥運籌方式對旱作水稻衰老及產量的影響
  5. Effect of deep tillage before winter coming on vertical distribution of root activity and senescence of flag leaf in wheat plant

    冬前深耘斷根對小麥根系活性的垂直分佈及旗葉衰老的影響
  6. Round, smooth nuclear surface, and uniform nuclear pore changed into bumping surface and expanding nuclear pore, then the nuclei broken and disappeared ; 2 ) the degenerate and disappear of cell organelle and senescence of the flag leaf were obviously faster during the ripe of grain ; 3 ) the degenerate and senescence of chloroplast was faster than that of mitochondria ; 4 ) the nuclear of leaf cells broken and disappeared faster than that of the leaf bumdles

    即核呈球形，表面光滑，核孔勻稱核表面凸凹，部分核孔變大核膜破裂，核解體，消失； （ 2 ）在籽粒成熟期小麥旗葉衰老及其細胞器退化消失明顯加快； （ 3 ）細胞中葉綠體的退化、消失比線粒體稍快； （ 4 ）葉肉細胞的細胞核比維管束韌皮組織細胞核解體消失稍快。
  7. Studies had showed that mj have many physiological effects. but there was little research on the effect and mechanism of mj promoting senescence, which is our researches studied. our experimental materials are detached - leaf discs of apple and pear

    鑒於此本研究以紅富士和鴨梨的成熟葉片為試材，利用圓片培養的方法，研究了mj對葉片衰老過程中生理指標的影響，初步探討了mj促進衰老的作用機制。
  8. The paraffin section of the flag leaf of wheat during its senescence was observed with sem. the results showed : 1 ) during the senescence of wheat, the nuclear shape altered obviously

    對小麥旗葉衰老過程中的石蠟切片進行掃描電鏡觀察，結果表明， （ 1 ）旗葉衰老過程中，細胞核形態發生明顯變化。
  9. 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

    氮肥用量不足導致穗葉葉肉細胞葉綠體結構性差，維管束鞘細胞碳水化合物累積減少，營養體氮素再分配率大而引起葉片早衰；而過量供氮則導致生長後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而提早脫落，同時葉肉細胞葉綠體片層結構膨脹，呈「肉汁化」特徵，維管束鞘細胞澱粉粒大量消耗，無核澱粉粒出現，從而葉片葉綠素含量下降，光合能力降低而出現早衰。
  10. The cell division element class plant growth regulator is one kind of promotion plant being of ability to promote the vegetable cell fission and the variation, delay the leaf blade senescence, promote lateral bud growth, break the apical dominance, induce injuries of the organization, split up the different organs and promote chloroplast growth and synthesis

    細胞分裂素類植物生長調節劑是一種促進型植物激素，能夠促進植物細胞的分裂和變異，延緩葉片衰老；促進側芽發育，打破頂端優勢；誘導愈傷組織，分化成不同器官；促進葉綠體的發育和合成。
  11. 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的加工以及外因導致蛋白質功能喪失時的降解。
  12. 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

    結果表明，氮肥用量不足或過量均加速了生長後期葉面積系數及穗葉葉綠素含量的下降進程，使葉片提早衰老，但二者作用機制不同。
  13. 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

    採用田間試驗、植株分析及電鏡檢測方法研究了氮肥用量對玉米葉片衰老的影響及其機制。
  14. 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

    綜述了轉基因技術在培育延熟番茄、抗病蟲番茄、抗除草劑番茄、抗逆番茄、改進番茄品質和延緩葉衰老番茄等方面的研究進展。
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