Growth and Inflorescences Flashcards
Annuals plants
Produced from seed in the spring then die at the end of the growing season
What phases do annual plants usually have?
Early vegetative phase, then a reproductive phase
What grows during the vegetative phase?
Stem growth and new cells (nodes and internodes) by the apical meristem
Reproductive meristems give rise to
inflorescences
What is terminal inflorescence
When the apical meristem turns into a reproductive meristem and produces an inflorescence at the end of the stem
What makes determinate plants so popular in agriculture?
Because the plant produces all or most of its flowers/fruits at the same time, which means they can be harvested simultaneously.
What makes determinate growth determinate?
Because the number of nodes on that stem has been determined and will not increase.
What is indeterminate growth?
The apical meristem remains a vegetative stem that is capable of forming new nodes and internodes throughout the season, so even if the reproductive phase has begun new nodes can still be formed.
Define inflorescence
the flowering structure of the plant
What are inflorescence that support only 1 flower?
Solitary/Sole flower
What is the stalk attached to a solitary/sole flower called?
Peduncle
Hypothetical inflorescence
supports multiple flowers
What is the “bract” of a flower?
When the leaf has an inflorescence instead of emerging from a stem node
Peduncle
the stem-like part of the inflorescence between the point where it emerges from the terminal node of the stem and the point where the branches of the inflorescence begin
Rachis
the central axis of the inflorescence, starting at the point where the first inflorescence branch is attached
