OR SEED PROPAGATION
1) produces large
numbers in a short period of time
2) can handle large
3) produces hybrids
1) some plants produce
no viable seeds
2) some seeds are
very difficult or slow to germinate
3) causes genetic
variability (e.g. due to production of hybrids)
OR VEGETATIVE PROPAGATION
the concept that every cell in a plant has the inherent genetic ability
reproduce the entire plant.
1) All off-spring
are true-to-type (identical to the
parent) and produce a clone .
clone - a group of plants, cultivar or variety derived from
the same parent plant by asexual
2) for plants that
are hard or impossible to propagate from seeds
3) decrease time
to flowering (esp. grafting & budding); by-passes juvenile phase
1) can only propagate
a few from each parent (except tissue culture).
2) requires a lot
An asexual propagation technique
where small pieces of excised tissue or individual cells are placed in
sterile in vitro culture containing all the nutrients, carbohydrates
and hormones needed for growth. The tissue grows rapidly and can
be induced to produce large numbers of new plants. Hormones are used
to cause the tissue to grow into callus masses, roots or shoots.
Sometimes called micropropagation.