网站首页  英汉词典

请输入您要查询的英文单词:

 

单词 Collective fruit
释义

Collective fruit

中文百科

复果 Multiple fruit

(重定向自Collective fruit)
檄树的花、未成熟及成熟的果实。檄树的特点,是花朵会定时沿着树枝生长,因此可以清楚看见从花到果的成长阶段。

复果也称花序果聚花果,是指由整个花序发育成的果实。如桑的果实是由雌花序发育成的聚花果,每一雌花的子房发育成一个小单果(又称作核果),包藏在厚而多汁的花萼中,食用的肉质多汁部分为雌花花萼,但这些果实到成熟时会结合成一颗较大的果。例如:凤梨、面包树、无花果,又如:桑椹、棱果榕、榕树、雀榕、桑橙等桑科植物。

左图的檄树图片可以从右到左看见复果从花变成果实的串行。首先,花序的白花出现。当白花受精后,每朵花开始长成小核果。核果继续成长膨胀,并融合成为一个复果。

又例如无花果的果实也是由花序发育成的聚花果,着生在肥厚肉质化的花轴内壁的每一雌花的子房发育成一个小坚果,包藏在肉质花萼内,食用部分实际是隐头花序的肥厚多汁的主轴。凤梨(即波罗)的聚花果则是由肥厚肉质的中轴、肉质的苞片和螺旋状排列的不发育的子房共同形成的球果状体。

英语百科

Multiple fruit 复果

(重定向自Collective fruit)
Pineapple is a kind of multiple fruit.
In some plants, such as this noni, flowers are produced regularly along the stem and it is possible to see together examples of flowering, fruit development, and fruit ripening

Multiple fruits, also called collective fruits, are fruiting bodies formed from a cluster of fruiting flowers, the inflorescence. Each flower in the inflorescence produces a fruit, but these mature into a single mass in which each flower has produced a true fruit. After flowering the mass is called an infructescence. Examples are the fig, pineapple, mulberry, osage-orange, and breadfruit.

随便看

 

英汉网英语在线翻译词典收录了3779314条英语词汇在线翻译词条,基本涵盖了全部常用英语词汇的中英文双语翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2024 encnc.com All Rights Reserved
更新时间:2025/6/17 10:09:55