早期落葉 的英文怎麼說

中文拼音 [zǎoqīlàyè]
早期落葉 英文
early leaf fall
  • 早 : Ⅰ名詞1 （早晨） morning 2 （姓氏） a surname Ⅱ副詞（很久以前） long ago; as early as; for a long ...
  • 期 : 期名詞[書面語]1. （一周年） a full year; anniversary 2. （一整月） a full month
  • 落 : 落名詞[方言] （北方對蓮花落的俗稱） a kind of folk song
  • 早期 : early stage; early phase; prophase （細胞分裂）
  • 落葉 : 1 （落下的樹葉） fallen leaves2 [植物學] （每年落葉的） deciduous leaf3 （落葉期） defoliation落...
  1. 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。
  2. Activity of various kinds of enzyme in larix olgensis and its application in early provenance selecton

    長白落葉松幾種酶活力及在種源早期選擇中的應用
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