rachis
英
美
n. 脊柱；分脊；花序轴，叶轴；羽轴
英英释义
noun
- the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
- the fall broke his back
- axis of a compound leaf or compound inflorescence
双语例句
- Relationship between Vascular Bundle System of Rachis and Rachilla and Ear Productivity in Wheat
小麦穗轴和小穗轴维管束系统及与穗部生产力关系的研究 - The study discovered that there are assimilating tissue which like the shape of palisade tissue in adaxial surface of rachis in all species of Cycas.
研究还发现苏铁科种类的叶轴的近轴面均像叶片那样具有栅栏组织状同化组织存在。 - Pathological anatomy of rachis in Wheat Varieties with resistance against scab
小麦品种抗赤霉病穗轴病理解剖的研究 - Pot experiments were carried out to study the effect of water deficit on vascular bundle system of rachis in wheat during heading stage.
利用盆栽试验研究了水分亏缺对抽穗期小麦穗轴维管束系统的影响。 - Two QTL controlling primary rachis branches were identified and they were co located with 2 of the 3 QTL for vascular bundles respectively.
2个控制一次枝梗数的QTL效应较小，但分别与控制穗颈维管束数的2个QTL同位。 - Spadix rachis flat, margin with bract-like appendages; flowers small, monoecious, in 2 series on rachis, apetalous.
肉穗花序轴扁平，边缘有苞片状附属物；花小，单性，雌雄同株，呈2列排列于花序轴上，无花被。 - Via the study for the regeneration of the folioles and rachis of the compound leaf, rachis is selected for the genetic transformation.
通过对刺槐复叶中小叶和叶轴两部分的再生试验，确定刺槐的叶轴作为本试验进行遗传转化的受体材料。 - Likewise, a plumulaceous tuft of barbs evolved before the pennaceous feather with a rachis because the rachis is formed by the fusion of barb ridges.
同样的，绒羽的羽枝簇比拥有羽轴的正羽更早演化出来，因为羽轴是由羽枝脊接合而成。 - The explants of perianth and ovary require higher amount of auxins than that of rachis, pedicel and peduncle.
但花被、子房较花序轴切片及花柄需要较高的激素用量。 - The results showed that there was notable difference between rates of spikelets on secondary rachis branch to total spikelets of different types of rice varieties. Varieties with heavy spikes had more spikelets on secondary rachis branch, accounting for over 70% of total spikelets.
试验结果表明：不同类型水稻品种的二次颖花占总颖花的比率有明显差异，穗重型品种二次颖花多，占总颖花的70%以上；