Plant Propagation & Nursery Management Flashcards
6 cards from real CHT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Plant Propagation & Nursery Management flashcards as text
Which type of cutting is taken from the current season's new growth before it hardens?
Answer: Softwood cutting
Softwood cuttings are taken from succulent, actively growing new shoot tips in spring or early summer before the wood hardens.
Stratification is a seed treatment used primarily to:
Answer: Break dormancy of seeds requiring a cold, moist period
Stratification mimics winter conditions by exposing seeds to cold, moist conditions to break physiological dormancy before germination.
Grafting is preferred over seed propagation for fruit trees because it:
Answer: Guarantees the exact genetic characteristics of the parent
Grafting is a form of clonal propagation that ensures the scion produces fruit with identical genetic characteristics to the selected parent variety.
What is the function of rooting hormone (IBA) when used on cuttings?
Answer: Stimulate callus and root formation at the cut surface
Indole-3-butyric acid (IBA) is an auxin that promotes adventitious root initiation and development at the base of vegetative cuttings.
Division as a propagation method is best suited for:
Answer: Clump-forming perennials and ornamental grasses
Division involves separating the crown and root system of clump-forming perennials and grasses into sections, each with roots attached for immediate replanting.
The primary purpose of bottom heat in a propagation bench is to:
Answer: Encourage faster root development by warming the root zone
Bottom heat raises the temperature of the rooting medium (ideally 65–75°F), accelerating callus formation and root initiation in cuttings.