bract

bract什么意思,bract翻译

基本解释

n.: 【植】苞；苞片
网络: 苞叶；苞鳞；苞片状

英汉解释

• 【植物;植物学】苞,托叶;苞片

• 苞鳞

词性分析

• 复数：bracts

例句

• The bract primordium with its axillary flower primordia is dome-shaped in the beginning and then elongates.

  苞片原基及其腋生的花原基最初呈圆丘状，随后伸长。

• Scape simple, erect, usually with a few small, bract like leaves.

  花葶单一，直立，通常具一些小的，苞片状叶。

• Stipules lanceolate, ca. 4 mm, membranous, densely covered with short brown pubescence, glabrescent , basal ones bract like and persistent.

  托叶披针形，约4毫米，膜，密被短的棕色的有毛，后脱落，基生者苞片状和持久。

• Bract base decurrent; bractlet margin membranous laterally, but apex herbaceous, acute; anther appendage apex pungent.

  苞片基部下延；小苞片侧面边缘膜质的，但是顶草质，锐尖；花药附属物先端锐尖。

• We previously reported that SUPERNUMERARY BRACT (SNB) regulates the transition of spikelet meristems into floral meristems in rice.

  我们之前已经报道过SNB（多颖壳）基因，它调控着水稻小穗分生组织向花分生组织的转变。

• bract absent. Flowers bisexual, usually nodding at anthesis, ascending in fruit, spreading funnelform.

  苞片无花两性，通常有节的在花期，在果期上升，平展漏斗状。

• Bract base not decurrent; bractlet margin membranous throughout, apex obtuse; anther appendage apex obtuse.

  苞片基部不下延；边缘膜质的小苞片全部，先端钝；花药附属物先端钝。

• Bract keeled; bracteoles distinct; inflorescences of spikes, flowers sunken into rachis.

  苞片龙骨状；小苞片清楚；穗状花序的花序，花凹陷的成为轴。

• Stomatal density and stomatal index on upper epidermis of petal, bract and calyx were smaller than those on lower surface.

  花瓣、苞片和花萼上表皮的气孔密度和气孔指数均小于下表皮的。

• involucral bract leaflike; heads many, hemispheric, many flowered.

  总苞片叶状头状花序很多，半球形，多花的。