Other cutting info

Question 1

Formation of adventitious roots process

Answer 1

1. Dedifferentiation
   Parenchyma cells become meristematic
2. Differentiation
   Initiation and organization of root initials
3. Development and emergence of new roots

Question 2

Functions of cutting media

Answer 2

• Hold cutting in place
• Provide moisture
• Permit air exchange
• Reduce light penetration to cutting base (b/c auxin breaks down in light)

Question 3

Cutting environment needs

Answer 3

High humidity to reduce transpiration
Ample but not excessive light
Warm media (70-80 F)
Cooler air (70-80 F day / 60 F night)

Question 4

When should you stop fertilizing before taking stem cuttings? Why?

Answer 4

At least 2 weeks before taking stem cuttings because nitrogen encourages shoots growth and stem cuttings need to be focused on root production

Question 5

“Parent” of a cloned plant

Answer 5

Ortet

Question 6

“Children” of a cloned plant

Answer 6

Ramets

Question 7

What is a trick for taking cuttings to retain the correct polarity?

Answer 7

Cut one end (i.e. proximal or distal) straight and the other slanted (keep the same for all cuttings)

Question 8

Why don’t you want to put succulent cuttings directly in media?

Answer 8

They hold so much moisture, they tend to rot. It’s better to leave them out for ~24 hours to let a callus form first