CHT Plant Propagation & Nursery Management

Question 1

Which type of cutting is taken from the current season's new growth before it hardens?

Accepted Answer

Softwood cutting

Answer

Hardwood cutting

Answer

Semi-hardwood cutting

Answer

Root cutting

Question 2

Stratification is a seed treatment used primarily to:

Accepted Answer

Break dormancy of seeds requiring a cold, moist period

Answer

Speed germination of tropical seeds

Answer

Sterilize seeds before planting

Answer

Coat seeds with fungicide

Question 3

Grafting is preferred over seed propagation for fruit trees because it:

Accepted Answer

Guarantees the exact genetic characteristics of the parent

Answer

Is less expensive

Answer

Produces trees that mature faster from seed

Answer

Eliminates the need for rootstock

Question 4

What is the function of rooting hormone (IBA) when used on cuttings?

Accepted Answer

Stimulate callus and root formation at the cut surface

Answer

Kill pathogens on the cutting

Answer

Provide nutrition to the cutting

Answer

Prevent wilting during rooting

Question 5

Division as a propagation method is best suited for:

Accepted Answer

Clump-forming perennials and ornamental grasses

Answer

Large shade trees

Answer

Annual vegetables

Answer

Tropical palms

Question 6

The primary purpose of bottom heat in a propagation bench is to:

Accepted Answer

Encourage faster root development by warming the root zone

Answer

Sterilize the rooting medium

Answer

Prevent overwatering

Answer

Provide supplemental light