Lecture Four

Question 1

Annual Plants

Answer 1

produced from seed in the spring and die at the end of the growing season

typically have vegetative phase early in their life followed by a reproductive phase

Question 2

Meristems

Answer 2

reproductive buds

Question 3

Inflorescences

Answer 3

flowering structures of the plant

indication of transition from vegetative to reproductive

Question 4

Determinate Growth

Answer 4

i.e. showy flowers on top

popular in agriculture because it all ripens/blooms at the same time - easier harvest

Question 5

Terminal Inflorescence

Answer 5

inflorescence at the end of the stem

Question 6

Will nodes and internodes continue to form once a plant produces an inflorescence?

Answer 6

nope

Question 7

Indeterminate

Answer 7

everything blossoms at different times

vining plants are typically indeterminate

food available in small amounts throughout the year

Question 8

Why would a food plant with a determinate growth pattern tend to have a shorter harvest period than a plant with an indeterminate growth pattern?

Answer 8

The apical meristem on a determinant becomes reproductive and flowers so it does not make more nodes and internodes, thus reducing the period of ripening.

Question 9

Solitary/Simple Flower Inflorescences (Umble)

Answer 9

very simple inflorescences that only support one flower structure

Question 10

Peduncle

Answer 10

attaches a solitary flower to the node

Question 11

Rachis

Answer 11

central axis starting at the point where the branch is attached

Question 12

Pedicle

Answer 12

short stalk connecting the flower to the rachis

Question 13

Compound Inflorescence (Umbel)

Answer 13

supporting several flower structures

cluster of flowers at the end of each rachis

Question 14

What is the difference between a bract and a stipule?

Answer 14

stipule - leaf structure that occurs where another leaf petiole attaches

bract - pedicel attaches to the rachis