Propagation/Greenhouse Management
Part 1 – 152 | Unit 1.3
Glossary
Pricking Out
A traditional French-intensive method of raising
seedlings in wooden flats, where seedlings are
transplanted from a sowing flat at high density
to a second propagation flat at lower density
Propagation Media
The growing media in which seeds are
germinated and seedlings are grown
Radicle
The young root as it emerges from the
seed, normally the first organ to appear on
germination
Roguing
The selective removal of seedlings affected by
pests or pathogens
Scarification
Scratching or etching a thick seed coat to
improve water uptake
Self Pollination
Self pollination occurs when pollen is
transferred from the anther to the stigma of the
same flower
Sexual Propagation
The intentional reproduction of a new
generation of plants by the germination and
growth of seeds that were created in the
previous generation through the fertilization of
a plant ovary via the union of male and female
sex cells. Results in a genetically unique plant
generation.
Stratification
The exposure of ungerminated seeds to either
warm or cold temperature extremes to release
chemical dormancy factors
Transpiration
The loss of water vapor from a plant, mostly
from the stomata of leaves
Viability
Capability of germination