Transcript Greenhouse Power Point

Plant Anatomy
Chapter 4
Primary Root
1.
Continues to
grow and
branch.
1st structure to
emerge from a
seed is a root.
Secondary Root
2. A root that arises
from the primary
root.
This is the best
place to take root
cuttings.
Root Hairs
4. Single cell roots
that are located a
few millimeters
back from the
root tip.
Root Cap
3. Mass of cells on
the tips of roots
which protect the
root from course
soil.
Taproot
One in which the
primary root
grows down from
the stem with
some small
secondary roots
forming.
Fibrous Root System
Plants that branch
into a number of
small primary
and secondary
roots.
Ex. Grass
Stem Tubers
Swollen tips of a
rhizome.
Ex. Potato
Adventitious Roots
Roots begin from
cutting of a plant
stem or leaf.
Adventitious Roots
Ex. Ivy, Wandering
Jew, Heart-leaf
philodendron,
Coleus
Typical Flower
Consist of 4 main parts.
1. Sepals
2. Petals
3. Stamens
4. Pistils
Sepal
The green leaf like
structures
beneath the
petals.
Calyx
Is made up of the
sepals on one
flower.
They form a
protective
covering before
the flower opens.
Petal
Usually bright in
color and serve to
attract
pollinators, such
as insects.
Stamens
The male
reproductive part
of the flower.
Pistils
The female
reproductive part
of the flower.
Define
Pollination: Occurs when pollen grains
are transferred from the anther to the
stigma.
Pollination occurs how: Insects, Bats,
Birds, Wind
Define
Fertilization: Occurs when one sperm nucleus
fuses with the egg cell nucleus, forming a
zygote that will become a seed.
Cross-Pollination: Occurs when pollen grains
from flowers on one plant transfer to the
stigmas of flowers on another plant.
Define
Hybrid: Is the offspring resulting from
cross-pollinating two different varieties
of species.
Complete Flower
Has all 4 major
parts.
1. Sepal
2. Petals
3. Stamens
4. Pistils
Incomplete Flower
Lack 1 or more of
the 4 major parts.
Ex. This one lacks
sepals
Imperfect Flower
A flower that lacks
either stamens or
pistils.
Perfect Flower
Contains both
Stamen and
Pistils.
Inflorescence
The arrangement of
flowers on a
stem.
Ex. Daisies,
Gladiolas
Inflorescence
Cyme
Usually flat topped.
Ex. Baby’s Breath
Umbel
Has several
branches from a
common point.
Ex. Queen Anne’s
Lace
Spike
Spike
Elongated
inflorescence
with a central
axis along which
are sessile
flowers.
Sessile flowers are
attached directly
without a stem or
stalk.
Ex. Gladiolas,
Liatris
Raceme
Raceme
Elongated
inflorescence
with central axis.
Which are simple
pedicels of more
or less equal
length.
Ex. Snapdragons,
Scotch Broom,
Stock
Panicle
Panicle
Has a central axis
and elongated
which there are
branches that
themselves
branch.
Ex. Astilbe,
Begonias
Fleshy Fruit
Composed of a soft &
Fleshy material
with seed or seeds
enclosed.
Ex. Tomato,
Peach,Watermelon
Dry Fruit
Consist of seeds
enclosed in a
fruit wall that is
hard and brittle
when mature.
Ex. Sunflower,
Pea, Oak
Fruit
Seed baring organ.
Seeds
Mature fertilized
ovules, or eggs,
that are contained
in the fruit.
Ex. Fruit, Grass
Seed Coat
Protects the seed.
Seed Embryo
Miniature Plant
Endosperm
Stored food in
specialized
tissue.
Monocot
Has 1 seed leaf.
Dicot
Has 2 seed leaves.
Germination
Process of events
whereby the seed
embryo goes
from a dormant
stage to an active
growing stage.
Germination Requirements
1.
2.
3.
4.
5.
6.
Moisture
Oxygen
Optimal Temperature
Light
Environmental Conditions
Seed not planted too deep.
Germination
 Germination
is
very important so
that people will
have enough to
eat and for
farmers to make
money!!!!!!!