Embryo Flashcards
What does the embryo contain?
Living cells and the precursor tissue to the first leaf, stem, and roots.
What are the two main components of the embryo?
Axis and scutellum.
What encases the first leaf in the embryo?
Coleoptile.
What are the first roots in the embryo called?
Chits.
What must be true for the grain to germinate?
The embryo must be alive and intact.
What percentage of the total dry grain weight does the embryo comprise?
3-4%.
What is the approximate protein content in the embryo?
~ 34%.
What percentage of triglycerides is found in the embryo?
~ 13-17%.
What is the approximate content of cell wall and polysaccharide gums in the embryo?
~ 16%.
What percentage of sucrose is present in the embryo?
~ 14-15%.
What is the range of raffinose content in the embryo?
5-10%.
What percentage of ash is found in the embryo?
5-10%.
What is the pectin and hemicelluloses content in the embryo?
~ 7%.
What happens to the embryo when treated with tetrazolium salts if it is alive?
It stains pink.
What can the pink staining of the embryo be used for?
A quick test before barley is accepted at the maltings.
