分櫱







大麥上的分櫱節


分櫱（英语：Tiller，「櫱（錯體字：蘖）」，拼音：niè，注音：ㄋ一ㄝˋ，粤拼：jit6，魚割切，音同「孽」）指禾本科等植物在地面以下或近地面處所發生的分枝，通常從較膨大又有豐富養料的主莖基部分長出，稱為一級分櫱。在一級分櫱基部又能長生新的分櫱芽和不定根，形成次二級分櫱，還可以形成第三級、第四級分櫱，形成許多叢生的分枝。节和节间部分通常称为分櫱节。早期生出的能抽穗結實的分櫱稱為有效分櫱，晚期生出的不能抽穗或不結實的分櫱稱為無效分櫱。有效分櫱受單位面積的穗數直接影響。[1][2][3]



參考文獻




  1. ^ Trlica, M. Grass Growth and Response to Grazing. Fact sheet 6.108. Colorado State University. [1 April 2011]. 


  2. ^ Bell, Adrian. Plant Form. Oxford, UK: Oxford University Press. 1991: 182. ISBN 0-19-854219-4. 


  3. ^ See Parts of a Grass Plant 页面存档备份，存于互联网档案馆 for an illustration.








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