Horticulture i 4.01 Sexual & Asexual Methods of Propagation.

Caroline is careful to use tissue culture in laboratory conditions that are aseptic. Therefore, the laboratory environment is:

• dirty

• humid

• pretty

• sterile

Jenny needs to construct some beds to use for rooting azalea cuttings. How deep should the rooting media be?

• 1 inch

• 4 inches

• 12 inches

• 24 inches

If Dave has a bag of fescue that has a seed germination rate of 80%, he can expect:

• 20 out of 80 seeds to germinate.

• 20 out of 100 seeds to germinate

• 80 out of 100 seeds to germinate

• all seeds to germinate.

Jacob learns a disadvantage of propagating using cuttings is that when cuttings are removed from the parent plant, the:

• cuttings’ absorption process stops.

• cuttings are cut off from their source of water

• parent plant needs more light.

• parent plant needs additional fertilizer

Callie is propagating her African violet by taking leaf cuttings. She is confident that leaf cuttings will work because she is using:

• axillary buds.

• herbaceous plants.

• stem tissue

• woody plants.

Samantha is cutting the iris rhizome in sections. This method of asexual propagation in which plants are broken or cut into smaller pieces or clumps and are planted to form new plants is:

• division

• grafting

• layering

• seeding

Christy enjoys mound layering her prize-winning azalea. Which is true of her mound layering technique?

• The plant has to be dug and separated first.

• A trench has to be dug for each stem being propagated.

• Only one inch of bark has to be removed

• Soil has to be heaped up around the plant.

Jennifer is using Rootone on her poinsettia cuttings. She knows that an advantage of using hormones on cuttings is that they:

• aid in photosynthesis

• decrease water needs

• keep the leaves from dropping

• speed root development.

Chris is interested in producing the most new plants in the shortest time period. What is the best propagation method for him to accomplish his goal?

• Budding

• Cutting

• Grafting

• Tissue Culture

Renee needs about 1,000 petunia plants. If the seed germination rate is 50%, what is the minimum number of seeds she should sow?

• 50

• 1,000

• 200

• 2,000