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Abscission (from Latin ab- 'away' and scindere 'to cut') is the shedding of various parts of an organism, such as a plant dropping a leaf, fruit, flower, or seed. In zoology , abscission is the intentional shedding of a body part, such as the shedding of a claw , husk, or the autotomy of a tail to evade a predator.
In the fields of horticulture and botany, the term deciduous (/ d ɪ ˈ s ɪ dʒ u. ə s /) [1] [2] means "falling off at maturity" [3] and "tending to fall off", [4] in reference to trees and shrubs that seasonally shed leaves, usually in the autumn; to the shedding of petals, after flowering; and to the shedding of ripe fruit.
Many plants and seeds recognize this and enter a dormant period in the fall to stop growing. The grain is a popular example in this aspect, where they would die above ground during the winter, so dormancy is favorable to its seedlings but extensive domestication and crossbreeding has removed most dormancy mechanisms that their ancestors had.
Flowers and tuber of Anredera cordifolia. A stem tuber forms from thickened rhizomes or stolons. The top sides of the tuber produce shoots that grow into typical stems and leaves and the undersides produce roots. They tend to form at the sides of the parent plant and are most often located near the soil surface.
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When they are mature enough, they drop off and root in any suitable soil beneath. Vegetative reproduction from a stem cutting less than a week old. Some species are more conducive to this means of propagation than others. A bulb of Muscari has reproduced vegetatively underground to make two bulbs, each of which produces a flower stem.
Special Baked Potatoes. For a nifty way to spice up plain old potatoes, try Tressa Surdick's recipe. To make them, she slices the spuds, then seasons them before baking.
Potatoes on a countertop. It’s a tale as old as time: You buy a bunch of potatoes at the grocery store, leave them on your counter and then promptly forget about them for a few weeks. Until you ...