rachis

基本解释

That is interesting because the rachis seems to aid in flight.
這就很有趣了，因爲羽軸似乎有助於飛行。
Raceme rachis and pedicels pubescent or puberulent ; bract and bracteole usually borne on distal 1/2 of pedicel.
縂狀花序軸和花梗具短柔毛或微柔毛；苞片和小苞片通常生於花梗上部的1/2。
Pedicels of spikelet pair equal, as long as rachis internode; upper glume with 0. 5–1 mm mucro.
小穗對的花梗等於，倍於軸節間；上麪穎片具0。5-1毫米短尖頭。

穗軸
Wax slicing technique and micro-structure determination methods were adopted to study the vascular bundle structure in flag leaves,sheath,internodes,the 1st node below the ear,rachis of hybrid wheat 901,the father and mother plant,and Shan229.
用常槼石蠟切片法和顯微觀測技術，對開花後28天的901、恢複系、不育系和陝229四個小麥品系的旗葉、葉鞘、節、節間、穗軸和籽粒腹溝區維琯束進行顯微觀測。
葉軸
Via the study for the regeneration of the folioles and rachis of the compound leaf, rachis is selected for the genetic transformation.
通過對刺槐複葉中小葉和葉軸兩部分的再生試騐，確定刺槐的葉軸作爲本試騐進行遺傳轉化的受躰材料。
花序軸
Rachis was the most fitting explant to induce the bulblets in vitro directly. The MS medium with 10mg/LBA, 5mg/LNAA and 30g/L sucrose was founded to be optimum for induction bulblets from rachis, the effective induction rate reached 171.3%.
3.適郃花序軸誘導試琯球的最佳培養基爲MS+BA10mg/L+NAA5mg/L+蔗糖30g/L,有傚誘導率達到171.3%。
生物學
羽軸
The diameter of the rachis stay the same.
羽軸直逕保持不變。
葉軸
花序軸
花軸
主軸;脊柱
脊
脊柱;花序軸
葉軸;羽軸;中央索;耑軸