BIOA02H3 Lecture Notes - Taraxacum Officinale, Germination, Plant Nutrition
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2013BIOAO2 S
Module 1
January 7th~Feb1 2013
Midterm date: Monday Febuary 4th 2013. 5-7pm
Module 2: Begins on Tuesday Feb 5th.
Total: 12 lectures
Lecture outline:
1-2: Tree of life-plants
3-4 Plant cells and plant tissues
5-6. From seed to tree
7-8. From tree to seed
9. Transport in plants
10. Plant nutrition and soils
11. Plant defense
12. Plant life on the edge.
Lecture 5 notes (From seed to tree)
A) Seed to germination
i. Seed dispersal
parent-offspring competition for space
ingenious adaptations: wind, water, ant, mammal, internal, hitchhiking, external
hitchiking:
Explosive self dispersal (e.g Jewelweed-touch me not)
Hairs-e.g common in milkweed (Asclepias xyriaca), Virgin’s bower (Clematis
virginiana)
Parachute-e.g. dandelion (Taraxacum officinale), Goat’s beard (Tragopogon
protensis)
Winged-e.g. sugar maple (Acer saccharum), Manitoba maple (A.negundo),
Norway maple (Acer platanoides).
Water dispersal- e.g seabean, coconut