Agriculture Reference
In-Depth Information
(2) Inbreeding and outbreeding species tend to have
different characteristics. Explain factors that would
determine if a given species should be classified as
inbreeding or outbreeding.
(3) A number of different cultivar types are available
in agriculture. Outline the major features of the
following cultivar types: Hybrid cultivars; Inbred
line cultivars; Clonal cultivars; Multiline cultivars;
Open-pollinated cultivars and Synthetic cultivars.
(4) List two inbreeding crop species and two out-
breeding crop species that have been utilized as
(1) pure-line cultivars; (2) out-crossing population
cultivars; (3) hybrid cultivars; (4) clonal cultivars
and (5) synthetic cultivars.
(5) Describe
Pure-line
Out
Hybrid
Clonal
cultivar
pollinated cultivar cultivar
cultivar
Would cultivars of
only one single
genotype be feasible?
Is heterosis a major
yield factor in
resulting cultivars?
Are resulting cultivars
propagated by means
of botanical seeds?
Can the seed, or plant
parts, of a cultivar be
used for its own
propagation?
the
major
features
of
the
follow-
ing types of apomixis:
Diplospory;
Semigamy;
Parthenogenesis; Apospory.
(6) List five different plant parts that can be responsible
for asexual reproduction.
