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30 gru 2021 · 1) Wind: Seeds of plants such as maple, milkweed, dandelion, swan plants, and cottonweed trees are light and feathery, which helps them carry to a distant place by the wind. In contrast, some plants like maple have winged seeds that do not float but flutter to the ground.
Seed Dispersal by Wind. The wind is the natural and fundamental means of seed dispersal in the plant kingdom. This process of dispersal is mainly seen in those plants which bear very light seeds.
One of the most fascinating and efficient mechanisms is wind dispersal. Through the power of air currents, seeds are carried over long distances, allowing plants to colonize new areas, find optimal growing conditions, and ensure their survival.
There are five main modes of seed dispersal: gravity, wind, ballistic, water, and by animals. Some plants are serotinous and only disperse their seeds in response to an environmental stimulus. These modes are typically inferred based on adaptations, such as wings or fleshy fruit. [1]
5 cze 2013 · We revisit these findings and formulate two alternative hypotheses for abscission mechanisms based on a simple model of a forced harmonic oscillator: large diaspore displacement [through a maximum deflection threshold, (MDT)] and material fatigue [through a maximum cumulative stress threshold (MCST)].
2 wrz 2024 · For example, seeds adapted for wind dispersal often have specialized structures like wings or parachutes that facilitate their aerial transport. On the other hand, seeds dispersed by water are typically buoyant and can travel across aquatic environments before germinating.
25 lip 2002 · Mechanisms of long-distance dispersal of seeds by wind. Ran Nathan, Gabriel G. Katul, Henry S. Horn, Suvi M. Thomas, Ram Oren, Roni Avissar, Stephen W. Pacala & Simon A. Levin. Nature 418,...
