Commercially prepared growth regulators Flashcards
can (and if yes, how?) plant growth regulators be produced outside of plants?
Plant growth regulators can be produced outside of plants by artificial or synthetic methods.
what do rooting powders often contain?
Rooting powders often contain a synthetic growth regulator such as naphtylacetic acid (NAA).
What does NAA stand for?
naphtylacetic acid
what does naphtylacetic acid (NAA) in rooting powder stimulate?
This stimulates rapid root formation on stem cuttings.
What do horticulturists use NAA for?
Horticulturists (people who grow plants) use NAA to produce roots on cuttings more quickly than would naturally be the case.
What is ethene used to ripen?
Ethene ripens bananas and other fruits.
What is tissue culturing also known as involving plants?
micropropagation
What is micropropagation/tissue culturing?
pieces of plant material are grown to form entire new plants.
How is a callus produced/grown?
If a piece of plant tissue is grown in a high auxin concentration, it will develop into a mass of similar (undifferentiated) cells, called a callus.
If a piece of plant tissue is grown in high auxin concentration, what will happen to it?
If a piece of plant tissue is grown in a high auxin concentration, it will develop into a mass of similar (undifferentiated) cells, called a callus.
If a piece of plant tissue is grown in a high auxin concentration, it will develop into a mass of similar (undifferentiated) cells, called a callus. What happens when you add different concentrations of auxins to the callus?
By adding different concentrations of auxins, the callus can be stimulated to form roots, shoots or an entire plant
Give some examples of commercially prepared growth regulators (3)
rooting powder, tissue culturing (micropropagation) with auxins, ethene
