Unit 4 - Agricultural Botany Flashcards
List and describe three methods of artificial vegetative propagation
- cuttings- generally 1 foot long pieces are cut from woody perennials, then buried in damp sand or loose soil
- grafting- splicing two stems together, root=stalk, cutting part to join=scion, scion is the part to propagate
- budding- a strong bud is removed and attached to a T-shaped cut on another stem
List two points regarding the eastern and northern zones biogeographical region
Southern margin of boreal forest
Vegetation in both zones is somewhat similar, containing mostly forests, largely coniferous
List two points regarding the south central zone
The areas are mostly open prairie, but forested area in Moose Mountain hills
Oak, ash, and Elm are found, but don’t go so high
List two points regarding the southwestern zone
Lack of moisture is reflected in vegetation which is mainly composed of drought-tolerant species
There are very few trees and these are only in favorite spots such as river valleys
List two points regarding the central zone
Mostly Parkland, with scattered bluffs of aspen, poplar, and willows
Plants are less drought resistant
List two points regarding the Cypress Hills
Elevated plateau rising to 4800 feet, situated in the midst of a treeless plain some 2000 feet below
Bare of vegetation very similar to the foothills region, consisting of open grasslands, and woodlands containing pine, spruce, ash, poplar, aspen, etc.
What is a positive and a negative tropism?
Give an example of each
Positive- growth of plants toward stimulus
Example: positive phototropism growth of shoot toward light
Negative- growth of plant away from stimulus
Example: negative Geotropism growth of shoot to gravity
Discuss vegetative reproduction
list four points
- also known as asexual reproduction or vegetative propagation
- The new organism is produced from a non-sexual part of the parent
- A product of runners, buds, and bulbs
- produces offspring that are genetically identical to the parent organism
