abscission (adj. abscissile)
The normal shedding of leaves, flowers or fruit from a plant at a special separation layer, or abscission zone.
GardenWeb Glossary of Botanical Terms
New Search: ...
Abscission The falling of leaf, twig-tip, etc, from a clean-cut scar, by a self-healing wound.
Accent plant Attention-getting plant due to its color or form.
Accessory buds Buds found beside or above the true bud at a node.
Abscission - A natural dropping of leaves, flowers and other plant parts.
Acid soil - Soils with a pH below 7.0 Acid soils can cause problems when their pH IS BELOW 5.5 ...
abscission layer
A layer of cells at the base of a plant part (like a leaf) that dissintegrates, causing that part to become separated.
accuminate ...
abscission The dropping of leaves, flowers, or fruit by a plant. This can result from natural growth processes (e.g., fruit ripening) or from external factors such as temperature or chemicals.
The abscission point is the point at which an apple will free itself from the tree. You've got to pick it off by that abscission point. If you wrench it off, you'll pull the whole fruit spur off and wreck the future crop.
Well, fall's lower temperatures and shorter days stimulate the formation of the abscission layer between the leaf and the branch. This is what causes leaves to fall off trees.
Drought and waterlogging produce many of the same symptoms on the above-ground parts of the plant, mainly chlorosis (yellowing leaves), abscission (shedding older leaves), and wilt.
Ethylene - A plant hormone most noteable involved in fruit ripening, but also involved in aging, growth inhibition, and leaf abscission. Ethylene is a gaseous hormone.
Eukaryote - An organism with a membrane bound nucleus and organelles.
IV. Monitoring: Monitor for thread blight in early summer in areas of the orchard where the disease was present in previous years. Monitor again after harvest and before leaf abscission and record the location of any new centers of infection.
 See also: Leaf, Plant, Flower, Stem, Produce
|
