bract，英語單詞，主要用作名詞，作名詞時譯為“[植] 苞；[植] 苞片”。
基本介紹
- 外文名：bract
- 詞性：名詞
- 英式發音：[brækt]
- 美式發音：[brækt]
- 釋義：[植] 苞；[植] 苞片
單詞用法,短語搭配,雙語例句,
單詞用法
柯林斯英漢雙解大詞典
bract /brækt/
1.N a specialized leaf, usually smaller than the foliage leaves, with a single flower or inflorescence growing in its axil 苞葉
短語搭配
Corn bract 玉米苞葉
bract scale[植] 苞鱗
bract cell 苞片細胞
Entire Bract 全緣苞片
Bract Like 苞片狀
Dentate Bract 有齒苞 ; 有齒苞片
wing bract 翅苞
inflorescence bract 花序花苞
bract structure 苞片結構
雙語例句
- 1Raceme rachis and pedicels pubescent or puberulent ; bract and bracteole usually borne on distal 1/2 of pedicel.總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。
- 2Red light could increase the ornamental value of flower, flower diameter, bract area, content of cyanidin were all increased.紅光能提高花頭的觀賞品質，使花徑、苞葉面積、花青素含量增加；
- 3The resistance of frego bract cotton was neutral, but insecticideamount on its green boll surface increased by4.9—10.0 times.窄卷苞葉對紅鈴蟲的抗性表現為中性，但可提高殺蟲劑在棉鈴表面的分布量4.9—10.0倍。
- 4We previously reported that SUPERNUMERARY BRACT (SNB) regulates the transition of spikelet meristems into floral meristems in rice.我們之前已經報導過SNB(多穎殼)基因，它調控著水稻小穗分生組織向花分生組織的轉變。
- 5In Calocedrus and Platycladus, only a single series of inverted vascular bundles were generated in the adaxial side of the bract scale;在苞鱗中只形成一組倒轉的維管束，如側柏屬和翠柏屬；
- 6There is a great deal of variation in certain characters, especially in leaf and bract morphology, and many differences exist in the disposal of taxon.該屬植物因葉和苞片等形態變異較大，在分類處理上存在較大的差異。
- 7Here, we report the identification of the SUPERNUMERARY BRACT (SNB) gene controlling the transition from spikelet meristem to floral meristem and the floral organ development.本文我們分離到了一個控制小穗分生組織向花分生組織轉變以及花器官發育的基因SUPERNUMERARY BRACT (SNB)。
