Did you mean:

Tuber aus Wikipedia. Zum Beitrag

Tuber - Wikipedia, the free encyclopedia a.new,#quickbar a.new{color:#ba0000} /* cache key: enwiki:resourceloader:filter:minify-css:4:f2a9127573a22335c2a9102b208c73e7 */ Tuber From Wikipedia, the free encyclopedia Jump to: , For fungal genus, see Truffle (fungus). For the community in California, see Tuber, California. Tuber is Latin for "swelling", as also used for benign tumours such as in tuberous sclerosis Oca tubers Tubers are various types of modified plant structures that are enlarged to store There are both stem and root tubers.

Contents

Stem tubers

A stem tuber forms from thickened rhizomes or stolons. The tops or sides of the tuber produce shoots that grow into typical stems and leaves and the under sides produce roots. They tend to form at the sides of the parent plant and are most often located near the soil surface. The below-ground stem tuber is normally a short-lived storage and regenerative organ developing from a shoot that branches off a mature plant. The offspring or new tubers, are attached to a parent tuber or form at the end of a hypogeogenous rhizome. In the fall the plant dies except for the new offspring stem tubers which have one dominant bud, which in spring regrows a new shoot producing stems and leaves, in summer the tubers decay and new tubers begin to grow. Some plants also form smaller tubers and/or tubercules which act like seeds, producing small plants that resemble (in morphology and size) seedlings. Some stem tubers are long lived such as those of tuberous begonia but many tuberous plants have tubers that survive only until the plants have fully leafed out, at which point the tuber is reduced to a shriveled up husk. Stem tubers generally start off as enlargements of the h... mehr

Tuber aus Wikipedia. Zum Beitrag