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Asexual Reproduction in Plants
Quiz 14B
Asexual Reproduction
little genetic variation has genes identical to its parent’s
Advantages of Asexual Reproduction
identical plants saves time saves money
Types of Asexual Reproduction
Vegetative reproduction Vegetative propagation
Vegetative Reproduction
The growth of a new plant from a stem, leaf, or root (something other than a seed).
Vegetative Propagation
Man’s use of vegetative reproduction to grow a new
plant from a root, stem, or leaf.
Types of Vegetative Propagation that are induced
cuttings (or slip)
layering grafting
Cuttings (or slip)
A piece of a stem, leaf, or root which is
capable of growing into a
new plant.
Cuttings (or slip)Cuttings are possible because certain types of plants are able to sprout special types of roots at the cut end of their stems. Adventitious roots
When a yellow-flowering hedge shrub is trimmed, a new shrub may be started by simply sticking a trimmed stem into the ground.
Layering
A branch is exposed to the soil, allowed to form roots, and then separated from the parent plant.
Vineyards use this method to quickly reproduce a desirable variety of grapes.
Layering
Layering
GraftingThe process of transplanting living tissue from one plant to another.
Used to propagateseedless plants: grapes, navel oranges
GraftingThis tree was developed by the West family in New South Wales, Australia and the process involves grafting branchesfrom compatible fruit trees onto one. The result is 4 different trees each with there own variety of fruit.
GraftingFor example there is a stone fruit tree with apricots, peaches, plums, nectarines and peachcots; a citrus tree with oranges, mandarins, lemons, limes, tangellos, grapefruit; a multiple apple tree, and a pear tree.
Types of Vegetative Propagation that are natural
underground stolons (mints) rhizomes (cattails) corms (gladiolus) bulbs (onion) tubers (Irish potatoes) runners (strawberries)
Underground Stolons
Underground Stolons
Rhizomes
Rhizomes
Corms
Corms
Bulbs
Bulbs
Tubers
Tubers
Runners
Runners