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REPRODUCTIVE STRATEGIES

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REPRODUCTIVE STRATEGIES – PowerPoint PPT presentation

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Title: REPRODUCTIVE STRATEGIES


1
REPRODUCTIVE STRATEGIES
  • sexual reproduction
  • asexual reproduction

2
SEXUAL REPRODUCTION
  • meiosis
  • fertilization

3
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4
F1
meiosis alternative associations
5
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6
TYPES OF SEXUAL REPRODUCTION
dioecious
monoecious or perfect flowers
7
Monoecious male and female flowers parts on
separate flowers on same plants
8
TYPES OF SEXUAL REPRODUCTION
Example dioecious
Example monoecious
Salix, Populus, Fraxinus, Sassafras, Taxus,
Pinaceae, Cupressaceae, Betulaceae, Fagaceae,
Juglandaceae.
Example perfect flowers
Magnoliaceae, Rosaceae, Fabaceae, Cornaceae,
Ulmaceae, Hippocastanaceae..
9
CONSEQUENCES OF SEXUAL REPRODUCTION
10
ASEXUAL REPRODUCTION
No meiosis fertilization
11
VEGETATIVE REPRODUCTION
12
TYPES OF VEGETATIVE REPRODUCTION
  • layering
  • root-crown sprouts
  • root suckers
  • stump (stem) sprouts

13
LAYERING
14
ROOT CROWN SPROUTS
15
ROOT SUCKERS Populus tremuloides
16
ROOT SUCKERS Clones of Populus tremuloides
17
STEM SPROUTS
18
Epicormic branching
Old-growth Pseudotsuga menziesii
19
EXAMPLE
THREE FORKS PARKSnoqualmie River
20
Snoqualmie River
Snoqualmie River discharge
21
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22
Populus trichocarpa roots
Populus trichocarpa stems
23
stem sprouts
Populus trichocarpa
24
Populus trichocarpa from Yellow Hill trail
25
CONSEQUENCES OF ASEXUAL REPRODUCTION
26
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27
ASEXUAL REPRODUCTIONAPPLICATION
Populus hybrids
CLONAL PRODUCTION FORESTRY
28
Populus hybrids
CLONAL PRODUCTION FORESTRY
29
GRAFTING ornamental and fruit trees, shrubs
30
scion
31
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