Horticulture 4

stage 1 of micropropagation

Establishment

ex Orchid

stage 2 of micropropagation

Multiplication

ex venus flytrap

stage 3 of micropropagation

Pretransplant

stage 4 of micropropagation

Transplantation 

Cytokinin Sources

Kinetin 

BA

Auxin Sources

IBA

IAA

Protoplast Culture and Fusion

Used for 2 species that can’t be hybridized sexually

Uses non sex cells, somatic cells, to make a hybrid

Remove cell walls with protoplasm

Put in culture with fusing agent PEG

Androgenesis

Anther Culture

Haploid plant

Chemicals that double chromosomes

Colchesine, Surflan 

Ploidy level of endosperm

Triploid

What nuclei fuse to form the endosperm

2 polar nuclei 

What fuses to form the embryo

1 Sperm and 1 egg

Two fusion events occur during sexual propagation

Double Fertilization

In what plant group does double fertilization occur?

Angiosperm

What is the ploidy level of the sporophyte?

Diploid

What is the ploidy level of the gametophyte?

Haploid 

What is the name of the gametophyte in ferns?

Prothallus

What is the ploidy level of a spore?

Haploid

When and where does meiosis take place during the fern life cycle?

Sporophyte