rachis

1. 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。
2. Small early-flowering buttercup with shiny yellow flowers of western North America. Inflorescence paniculate, rachis tawny tomentose; female flowers borne on basal part of the inflorescence.
   北美西部的一种小形的早花毛茛，花黄色、有光泽。花序圆锥状；花序轴被灰黄色短绵毛；雌花著生于花序轴下部。
3. Spinal cord is to be located in the organization of a kind of nerve among rachis.
   脊髓是位于脊柱中间的一种神经组织。
4. Lumbar Di is changed and Di vertebra waist is changed is congenital rachis deformation.
   腰椎骶化和骶椎腰化都是先天性脊柱畸形。
5. Acrylic printed fleecy suit Inflorescence paniculate, rachis tawny tomentose; female flowers borne on basal part of the inflorescence.
   腈纶珠光网眼泡沫印花套装花序圆锥状；花序轴被灰黄色短绵毛；雌花著生于花序轴下部。
6. 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。
7. A low-growing, weedy grass ( Paspalum distichum) with spikelets arranged in two rows along the rachis. any grass of the genus Chloris; occurs in short grassland especially on waste ground or poor soils.
   两耳草一种小穗沿叶轴排成两行的低矮蔓生草（两耳草雀稗属）虎尾草属的任何一种草；出现在矮草原尤其在荒原或土壤贫瘠地区。
8. The activity of catalase in rachis branches of ratooning rice of HMST and LST varieties improved with declining stubble height, whereas a contrary trend was observed for HST ones.
   中高桩与低桩再生型品种再生稻枝梗过氧化氢酶活性随留桩高度下降而增强，而高桩再生型品种表现相反；
9. 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。
10. 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
11. Character and re-inoculation experiment indicated that the strains were Bradyrhizobium sp. ( A rachis), which provide a base for the coming research of peanut's nodulation gene.
    所得菌株经理化性质和回接试验鉴定为慢生根瘤菌，从而为接着的花生根瘤菌及其结瘤基因的研究提供了基础。
12. The results indicated that crude choline and betaine and their water extract from the anthers, glume and rachis showed a marked stimulating effect on conidium germination, germ tube extension and hypha growth of Fusarium graminearum.
    结果表明，花药、颖壳和穗轴的抽提物及胆碱对赤霉菌分生孢子萌发、芽管伸长和菌丝生长有明显刺激作用。
13. 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。
14. Its anthotaxy is spica, and amphimixis flowers is serried inserted on the thick rachis.
    穗状花序，两性花密集着生于粗大的花轴上。
15. The setting ratio of spikelets on secondary rachis branch was more subject to climate and management.
    二次颖花的成粒率受气候及管理水平影响较大；
16. Moreover, it mainly resulted in shortened internode under the rachis internode, with forming good plant shape, and increasing the number of ear bearing tiller, but decreasing the per ear grain number.
    而且主要是缩短穗下节间以下的节间，对穗下节间无明显影响，形成良好的株型，并可增加成穗数，但穗粒数有所减少。
17. Effect of Water Deficit on Vascular Bundle System of Rachis in Wheat
    水分亏缺对小麦抽穗期穗轴维管束系统的影响
18. Total amount of choline and betaine in the anther was significantly higher than that in the glume and rachis.
    花药中的胆碱类物质含量显著高于颖壳和穗轴中的含量。
19. Studies on Plant Regeneration Induced from Rachis Receptacle and Unfertilized Ovary of Cauliflower
    花椰菜未受精子房、花托、花序轴离体培养诱导成苗研究
20. The rachis of these cycads had structure characteristic of xerophytes, i.e., thicker cuticular membrane, developed mechanical tissue, the more secretion, crystal and secretory canal and more number of vascular bundles etc.
    苏铁类植物叶轴具有旱生植物的解剖结构特征：角质层较厚、表皮细胞壁厚、机械组织发达、晶体较多、分泌道和维管束数目较多等结构特征。
21. Meanwhile filled grain number also correlated closely to fruiting primary rachis branch number and treatments in total sample containing treatments.
    同时，总样本（含处理）还与结实一次枝梗数和处理密切相关。
22. Effect of Spikelets upon Secondary Rachis Branch on Yield of Rice
    水稻二次枝梗颖花的灌浆程度对产量的影响
23. 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；
24. It showed that the vascular bundle system of rachis in wheat changed apparently under water deficit.
    表明水分亏缺显著改变了小麦穗轴维管束系统的显微解剖结构。
25. Comparative Anatomic Studies on Rachis of Eight Species of Cycads
    八种苏铁植物叶轴的比较解剖研究
26. 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。
27. 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。
28. 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
29. 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。
30. In addition, the developments of all traits about floral axis rachis were evidently influenced by environment.
    此外，环境显著影响花序轴各性状的发育。

noun

1. the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
   1. the fall broke his back

   Synonym:    spinal columnvertebral columnspinebackboneback

2. axis of a compound leaf or compound inflorescence