plant prop exam 2

what is a annual, biennial, and perennial life cycle?

• annual: life cycle in 1 year then dies

• biennial: life cycle in 2 years then dies

• perennial: life cycle in 2+ years

what are the 2 main types of perennial plants?

• woody: above ground plants

• herbaceous: soft stem, dies back to ground during winter

what are the 4 phases of a seedling life cycle? (EJTA)

1. embryonic: dev. of embryo inside seed on parent plant

2. juvenile: seed emerges, veg. growth cannot flower

3. transition: growth slows, morphology changes, sensitive to flower inducing signals

4. adult: flowers and produces seeds

what does the length of the phases of the seedling life cycle depend on?

the species and exposure to environmental triggers

what is different about the seedling life cycle in a clonal plant?

• derived from veg. propagation

• no phase 1

• stage/phase taken from dependent on what you want (new plant will have same phase as prop. plant)

what is plant taxonomy based on?

• morphological features

• biochemical aspects

• genetic characteristics

what are the different binomial nomenclatures of varieties, cultivars, hybrid interspecific, and hybrid intergeneric plants?

• variety: Genus species var. + variety name

• cultivar: Genus species ‘cultivar’

• hybrid interspecific: Genus X hybrid species

• hybrid intergeneric: X Genus 1 & 2 Mashup species

what are the types of meristematic tissue and their main purposes? (3)

• apical: makes plant taller and longer

• lateral: increases plant girth

• intercalary: only in monocots @ base of leaves and nodes

where can you find apical meristem?

auxiliary buds, top of plant, tip of roots

What are the types of permanent tissue and their main purposes? (3)

• dermal: protection and gas exchange (outer layer)

• vascular: transports water, mineral, and sugars (xylem and phloem)

• ground: photosynthesis site, structural support, and storage for water and sugars (fills space between first 2)