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An important constraint on wind dispersal is the need for abundant seed production to maximize the likelihood of a seed landing in a site suitable for germination. Some wind-dispersed plants, such as the dandelion, can adjust their morphology in order to increase or decrease the rate of diaspore detachment. [ 25 ]
The name derives from the Ancient Greek word pappos, Latin pappus, meaning "old man", so used for a plant (assumed to be an Erigeron species) having bristles and also for the woolly, hairy seed of certain plants. The pappus of the dandelion plays a vital role in the wind-aided dispersal of its
This allows the plume of seeds to close up and reduce the chance to separate from the stem, waiting for optimal conditions that will maximize dispersal and germination. [20] [21] The pappus of a dandelion seed, which aids in wind-driven dispersal Field with flowering dandelions, Tatarstan, Russia
Mark Stone/University of WashingtonBlowing dandelion seeds into the wind isn't just a pretty little way for kids (and adults) to waste away a warm afternoon outside. They’re also an ...
The patterns of seed dispersal are determined in large part by the specific dispersal mechanism, and this has important implications for the demographic and genetic structure of plant populations, as well as migration patterns and species interactions. There are five main modes of seed dispersal: gravity, wind, ballistic, water, and by animals.
Dandelion seeds are adapted to wind dispersal. A dispersal vector is an agent of biological dispersal that moves a dispersal unit, or organism, away from its birth population to another location or population in which the individual will reproduce. [1] [2] These dispersal units can range from pollen to seeds to fungi to entire organisms.
Dandelion seeds are contained within achenes, which can be carried long distances by the wind. The seed pod of milkweed (Asclepias syriaca) Some seeds (e.g., pine) have a wing that aids in wind dispersal. The dustlike seeds of orchids are carried efficiently by the wind. Some seeds (e.g. milkweed, poplar) have hairs that aid in wind dispersal. [28]
The upper half of the cypselas' surface is spinulose. Each cypselae possesses a single seed. [3] The seeds utilize wind dispersal. The pappus of each seed helps amplify drag, which increases the chance that wind will carry it away and prolongs its descent. [4] The fruit and seeds of Taraxacum ceratophorum