abscission layer การใช้

• In claws, this results in an abscission layer, and the old segment breaks off.
• Ultimately, the abscission layer is responsible for leaf drop.
• The abscission layer is a greenish-grayish color.
• The beginnings of leaf drop starts when an abscission layer is formed between the leaf petiole and the stem.
• This site, known as an abscission layer, serves to block the movement of sugars going from the leaf into the plant.
• The intensity of the red color produced has to do with the sugars that are captured in the leaf once the abscission layer is in place.
• A hard tissue called the abscission layer is then formed at the point where the leaf stalk meets the stem, effectively closing the door between leaf and plant, and causing the leaf to fall off.
• When the tree has stopped sending raw materials to the leaf and sucked out anything it can use for energy over the winter, the abscission layer that glues the leaf stem to the tree breaks down.
• It may be that the abscission layer in oaks and beeches isn't as thick as it is in other trees, and the leaves just hang on longer, hoping that the tree will hear them knocking and open up, or at least send out a warm sap toddy.
• When auxin coming from the leaf is produced at a rate consistent with that from the body of the plant, the cells of the abscission layer remain connected; in autumn, or when under stress, the auxin flow from the leaf decreases or stops, triggering cellular elongation within the abscission layer.
• When auxin coming from the leaf is produced at a rate consistent with that from the body of the plant, the cells of the abscission layer remain connected; in autumn, or when under stress, the auxin flow from the leaf decreases or stops, triggering cellular elongation within the abscission layer.
• A ripe head ( " ear " ) of wild-type wheat is easily shattered into dispersal units when touched, or blown by the wind, because during ripening a series of abscission layers forms that divides the rachis into short segments, each attached to a single spikelet ( which contains 2 3 grains along with chaff ).