Structure of a Grape Vine
- Buds and nodes are the beginnings of leaves and fruit on the grape vine. Flowers may sprout from buds and nodes, later maturing into edible grapes. The grapes will usually receive their color in July, changing from green to reddish-purple. Small shoots from the buds and nodes may also turn into large grape leaves, which will reach full maturity before the fruit ripens on the vine. Small, lateral shoots may also develop on the wood of the vine itself. The lateral shoots may develop very small fruits which are inadequate for harvesting. Prune the lateral shoots during the summer to keep the grape vine healthy, getting rid of these unwanted growths, according to the University of Nebraska-Lincoln.
- Tendrils--a distinct feature on grape vines--are long, winding protrusions which coil and wind around fences, trellises, the plant itself and anything else they may reach. Tendrils appear at the top and sides of stems, growing in long, thin lengths until the plant is ready for harvest. After the fruit is harvested, the tendrils of the grape vine will harden and become wooden in nature.
- The large leaves of the grape vine provide nourishment and air for the plant. The leaves grow laterally along the vine with three to five large lobes, which are serrated at the edges. Grape vine leaves are light to dark green in appearance. The leaves of any plant, grapevine included, are the main tool of nourishing the plant, converting sunlight into usable energy.
- The stem, or vine, of the grape vine is the main "trunk" of the plant. Shoots which will bear grapes grow outwardly from the vine, the central stem which runs the length of the plant. The grape vine's stem provides its main support system, providing a backbone for all leaves, flowers and fruit. The stem is anchored to the ground via roots, which grow beneath the surface of the soil to soak up nutrients.
- Grape vines grow three types of roots: shallow, subterranean and principal. The shallow roots are quick-growing, short-living roots which live near the surface of the soil to catch moisture. Subterranean roots help to anchor the plant, keeping it secure to the ground to provide structural support. Principal roots deliver moisture and minerals directly to the plant, storing nutrients to nourish the grape vine throughout the long winter while the plant is dormant.
Buds and Nodes
Tendrils
Leaves
Stems and Shoots
Roots
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