Propagation Week 1 Flashcards
Plant Propagation
Multiplying plants which are most useful to promote man’s well-being and preserving their essential genetic characteristics.
Theophrastus
(370 BC) Wrote Enquiry into Plants
Propagation of seeds for food crops and herbs.
Made the first mention of “cuttings” “A piece torn off” –already roots/ suckers taken from parent plant.
Romans
First to use glass (mica) to germinate seeds (first green houses)
Grafting (roses) sealed grafting using clay, chalk, sand, straw, and cattle manure
Layering: used for propagating vines
Ancient Chinese
Pioneers of grafting by Budding (wild peony) . Also, air layering
Victorians
Rooted cuttings in small pots nested in large pots under a bell glass (became a fad)
Asexual (vegetative) Propagation
Off spring produced is genetically identical to parent plant (cloning)
Reproduce plants with no viable seed.
Bypass “juvenility” in woody plants.
Helpful to skip to phase creating flowers and fruit
What are the two major type of plant propagation?
Sexual and Asexual
Sexual Propagation
Genetic variation from parent plant
Helps prevent monocultures
Monoculture
A large scale production of an agricultural commodity based on one cultivar or one clone. Narrow genetic base.
Juvenility
An early stage in the life of a plant before it matures and produces flowers and fruits.
Name the 3 plant classes
Ferns, Gymnosperm, Angiosperm
Ferns
Have vascular tissue but don’t reproduce by seed. Sexually produce by spores not seed
Gymnosperm
a class of plants with vascular tissue that reproduce by seed and produce cones. seeds are housed in cones. "Naked seed" not enclosed by fruit but naked on scales of cone.
Angiosperms
A class of plants with vascular tissue that reproduce by seed and produce flowers and fruits.
Subclasses of Angiosperm
Monocot and Dicot
Monocot
One seed leaf
Flower parts in multiples of 3
Parallel veins (blade of grass)
Dicot
Two seed leaves
Flower parts in multiples of 4 or 5
Network of veins
What classification type commonly ends with “aceae”
Family
Botanical Nomenclature
System for naming plants (Latin)
Binomial
A name having two parts
Genus + specific epithet
Genus
A level of plant classification more narrow than family and broader than species; it is always written in italics with the first letter capitalized.
Specific epithet
the second part of a plant’s scientific species name that is always written in italics and lowercase letter; it is usually a Latin adjective.
Hybrid
plant results from the cross of plants in a different species or genus
Species
Name (scientific name) of the plant is a binomial
A group of plants which freely reproduce sexually with other members of that group