这是因为在植株最顶端的芽具有顶芽优势(apical dominance)，会抑制其下端侧芽的萌发。如果因为意外的损伤或是人为的修剪，使猪笼草失去顶芽，则最靠近顶芽的侧芽就会开始萌发、生长。
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这是因为植株的顶芽具有顶端上风（apical dominance），会克制其下端侧芽的发育。如果因为意外的损伤或是人为的修剪，使猪笼草失去顶芽，则最靠近顶芽的侧芽就会开始发育、生长。
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In many plant species, includingArabidopsis, the growth of axillary meristems is inhibited by the primary inflorescence, a phenomenon generally known as apical dominance.
在很多植物包括拟南芥中，侧芽的生长会被顶端花序的生长抑制，这就是植物特有的顶端优势现象。
参考来源 - 谷子（Tetaria italica）中PF40基因功能的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
Conversely, as competition for light decreases, there should be an increasing premium on branching that is achieved through weaker apical dominance to maximize light capture.
相反地，当光竞争减弱时，植物的顶端优势较弱，加强分枝结构以增大对光的截获。
It was also observed that the "inter-grain apical dominance" in hybrid rice was stronger than its restorer, which might be one of the main reasons for low seed setting in hybrid rice combination.
强势粒对弱势粒物质摄取能力的优势，可能是杂交稻籽粒结实率低下的重要原因之一。
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