| 释义 |
不定根 bùdìnggēnbot. nonterrestrial roots不定根【植】adventitious root不定根[bù dìng gēn]不是从胚轴的下端生出来的根。有的不定根从茎的节上生出来，如禾本科植物的根；有的从叶片上生出来，如秋海棠的根。adventitious root; root that does not derive from the plumular axis, but from joints of the stem, e.g. roots of gramineous plant, some deriving from the leaves, e.g. roots of the begonia不定根1. [Botany] an adventitious root不定根adventitious root不定根adventive root |