英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

petiole    
n. 叶柄,柄,柄部

叶柄,柄,柄部

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Petiole (botany) - Wikipedia
    Petiole (botany) Leaf of Pyrus calleryana with petiole In botany, the petiole ( ˈpiːti oʊl, ˈpɛti - ), commonly known as the leaf stem or leaf stalk, is the stalk that attaches the leaf to the twigs, branches or stems of a plant The terms petiolate and apetiolate are applied, respectively, to leaves with and without petioles
  • PETIOLE Definition Meaning - Merriam-Webster
    The meaning of PETIOLE is a slender stem that supports the blade of a foliage leaf
  • Petiole, Petiolule - Master Gardeners of Northern Virginia
    A petiole is the stalk that joins the blade (the flat part of the leaf, also called a lamina) to the node (the attachment point on a stem) The segment of the stem between two nodes is called an internode The upper angle between a petiole leaf (or branch) and the stem (or trunk) from which it arises is called an axil and new growth may occur within it from an axillary bud A leaf can be
  • Petiole - Definition and Function | Biology Dictionary
    Petiole Definition The petiole is the stalk that supports a leaf in a plant and attaches it to the stem Many people often call it a stem, which is incorrect A stem is the part of the plant that serves as the main source of support and produces nodes and roots, and that’s not what we observe in petioles In the picture below, the nodes are the points connecting the petioles to the stem We
  • What Is the Petiole? Structure and Function Explained
    The petiole is a stalk-like structure connecting the leaf blade (lamina) and the main stem of a plant This component is fundamental to the plant’s architecture, holding the photosynthetic machinery away from the stem The petiole’s length and rigidity vary significantly across species, directly influencing how a plant captures light and manages its canopy structure By linking the leaf to
  • What Are Petioles In Plants - ezgardentips. com
    The petiole is the stalk that connects a leaf to a plant’s stem, often confused with a stem, which serves as the plant’s primary support structure and produces nodes and roots The petiole allows leaves to maintain optimal sunlight exposure by twisting towards the sun in some species Leaves with petioles can have varying lengths; they can be long, as seen in celery and rhubarb, or short
  • Petiole | plant anatomy | Britannica
    The petiole is a stalk that connects the blade with the leaf base The blade is the major photosynthetic surface of the plant and appears green and flattened in a plane perpendicular to the stem
  • Understanding Petioles: The Hidden Structure of Leaves
    A **petiole** is the narrow, elongated structure that connects a leaf blade to the stem of a plant Think of it as the “leaf’s handshake” with the plant—it supports the blade, angles it toward sunlight, and transports water, sugars, and minerals between the leaf and the rest of the plant





中文字典-英文字典  2005-2009