sexual plant propagation. propagation of plants from seeds w composition of seeds w seed coat-...
TRANSCRIPT
Sexual plant propagation
Propagation of plants from seeds Composition of seeds Seed coat- outside covering
which protects embryonic plant endosperm- stored plants food,
and nourishes embryonic plant during germination
Propagation of plants from seeds embryo (embryonic plant)- a
new plant that is developed as a result of fertilization, and during germination it extends its roots and seed leaves (cotyledons) to form a new plant.
Propagation of plants from seeds Germination media favorable pH supply of plant nutrients firm and porous sterile and free from foreign
materials
Indirect seeding Seeds sown in a separate place
from where they will eventually grow to maturity
Transplanted one or more times before reaching permanent growing area
Flats made of: wood, plastic, and metal have drainage holes in bottom seeds generally sown in rows. * we will use flats with individual
pots
When to seed important in business to have
saleable product ready at market time
Sowing seeds follow package directions to
determine planting distance cover with sprinkling of moist
sphagnum or peat moss label:name, variety, and date
sown
Watering water from bottom if watering from top be careful
to avoid washing seed out or too deeply into soil
Germination 65-70 degrees soil temperature retain humidity cover with glass or plastic
Germination some seeds require three days
of darkness prior to germination cover with newspaper instead
of glass
Germination water with a fine mist or from
the bottom
Transplanting seedlings following germination plants
develop seed leaves - cotyledons
allow plant to grow until first true leaves are present before transplanting
Transplanting seedlings hold seedlings by true leaves
not by the stem with thumb and forefinger
bruised stem could cause plant death
Transplanting seedlings don’t shake off media from
roots can cause them to dry out too
much
Transplanting seedlings plant about 2 inched apart insert at depth a little deeper than
they were grown before gently press media around roots water with gentle stream to settle
soil around roots
Direct seeding planting seeds directly into the
permanent growing area most economical media-soil prepare by loosening soil and
removing all large clumps
Direct seeding add manure, grass clippings, or
compost to improve soil structure chemical treatment disease prevention insect prevention
Direct seeding Germination Requirement same as indirect seeding.
Treatments of seed for Germination Same seed won’t readily
germinate soak in water or acid bath to
soften seed coat scratch with sand paper allows water into seed
Treatments of seed for Germination dormant stage moist and cold below 37 F bury in moist sand and keep
cool refrigerate
Treatments of seed for Germination Alternate wetting and drying Presence of light Darkness Follow package instructions Fire or extreme heat- Jack Pine