Chapter 10 - Techniques of seed propogation

Question 1

three basic systems that are relied upon to produce seedlings:

Answer 1

1. Field seeding
2. Seeding in field nurseries
3. Seeding in protected conditions

Question 2

What is a seed planting depth rule of thumb?

Answer 2

is to plant seeds to a depth that approximates three to four times the seeds diameter.

Question 3

Scarification

Answer 3

is the process of physically or chemically altering the seed coverings to improve germination in dormant seeds.

Question 4

What are the 3 main scarification treatments?

Answer 4

1. mechanical scarification
2. Chemical (Acid) Scarification.
3. High Temperature Scarification.

Question 5

Flat Production.

Answer 5

Traditional bedding plant production relied on flat production of seedlings. Seeds were planted in a germination flat or container, and later germinated seedlings were “pricked out”

Question 6

Plug Production.

Answer 6

a seedling produced in a small volume of medium contained in a small cell, of which between 72 to 800 are contained on a single sheet of polystyrene, Styrofoam, or other suitable material

Question 7

drill seeder

Answer 7

A drill opens the furrow for planting the seed. The drill controls seeding depth and must provide good seed-to-soil contact while minimizing soil compaction that might impede seedling emergence.

Question 8

Random seeders

Answer 8

meter seed in the row without exact spacing. They are less complex than precision seeders and are useful when spacing between plants in the row is not critical, and thinning is not applied to achieve final plant stand as in many agronomic crops. Random seeders use gravity to drop seeds through holes located at the bottom of the hopper. The size of these holes and tractor’s speed determine the seeding rate.

Question 9

Precision seeders

Answer 9

selectively meter seed from the hopper to maintain a preset spacing in the row, and can greatly reduce the number of seeds required to seed an acre compared to random seeding.