CROP PLANT FORM Jss 1 First Term Agricultural Science
WEEK 6
DATE:…………………….
TOPIC: CROP PLANT FORM.
CONTENT:i. Plant parts
ii.
Functions of each plant parts.
Functions of each plant parts.
Sub – Topic 1: Different parts of plants
Plant form refers to the shape of a
plant. Flowering plants have two regions: the shoot region, which is found
above the ground level and the root region which is found below the ground
level.
plant. Flowering plants have two regions: the shoot region, which is found
above the ground level and the root region which is found below the ground
level.
PARTS OF A FLOWERING PLANTS
A flowering crop plant has the
following parts
following parts
•
The leaves
The leaves
•
The flowers
The flowers
•
The branches
The branches
•
The stem
The stem
•
The roots
The roots
Flowers, leaves, branches and stem
comprise the shoot region or system while the different roots comprise the root
regions system.
comprise the shoot region or system while the different roots comprise the root
regions system.
EVALUATION
Differentiate
between shoot system and root system and name their parts.
between shoot system and root system and name their parts.
Sub – Topic
2 Functions
of the parts of a plant
2 Functions
of the parts of a plant
The
leaves: The
leaves of a plant perform the following functions.
leaves: The
leaves of a plant perform the following functions.
•
Manufacture food through the process
of photosynthesis
Manufacture food through the process
of photosynthesis
•
Some leaves store food e.g. onions,
cabbage, waterleaf.
Some leaves store food e.g. onions,
cabbage, waterleaf.
•
Some leaves are used for propagation
e.g. Bryophyllium
Some leaves are used for propagation
e.g. Bryophyllium
•
The leaves permit air to enter
leaves the plant through the stomata.
The leaves permit air to enter
leaves the plant through the stomata.
•
The leaves give the shape of the
plant.
The leaves give the shape of the
plant.
The
flowers: The
functions of the flowers include the following.
flowers: The
functions of the flowers include the following.
•
Bright scented flowers attracts
insects for pollination
Bright scented flowers attracts
insects for pollination
•
The flowers produce the fruits and
seeds
The flowers produce the fruits and
seeds
•
Some plant flowers are eaten by man
Some plant flowers are eaten by man
•
Use for decoration/they adds beauty
to the plants.
Use for decoration/they adds beauty
to the plants.
•
They release sweet odour.
They release sweet odour.
The
branches: The function of the branches
includes the following
branches: The function of the branches
includes the following
•
They help to hold the leaves and
fruits in shape
They help to hold the leaves and
fruits in shape
•
Some plant branches are used for
propagation.
Some plant branches are used for
propagation.
The
stem: The functions of the include:
stem: The functions of the include:
•
They help to transfer food nutrients
from the roots up to the leaves and flowers.
They help to transfer food nutrients
from the roots up to the leaves and flowers.
•
Also, it brings down the
manufactured food form the leaves to other parts of the body
Also, it brings down the
manufactured food form the leaves to other parts of the body
•
They are used for propagation e.g.
cassava stem
They are used for propagation e.g.
cassava stem
•
It carries the branches, leaves and
flower
It carries the branches, leaves and
flower
•
Some plant stems store food e.g.
yam, Irish potato and sugar cane.
Some plant stems store food e.g.
yam, Irish potato and sugar cane.
The
root: The functions of the roots include
root: The functions of the roots include
•
It holds the plant firmly to the
ground
It holds the plant firmly to the
ground
•
It absorbs minerals and water from
the soil.
It absorbs minerals and water from
the soil.
•
Some plant roots store food e.g.
cassava and carrot
Some plant roots store food e.g.
cassava and carrot
•
Some plant roots are medicinal.
Some plant roots are medicinal.
Diagrams
Parts of flowering plants
Leaf Flower Stem Branches Fruits
EVALUATION
1. Outline
two functions each of
two functions each of
•
The leaves
The leaves
•
The flowers
The flowers
•
The branches
The branches
2. State
any 3 functions each of the stem and the root.
any 3 functions each of the stem and the root.
Assignment:
Students to get any of the part of
the plant, identify and draw it, and write its functions
the plant, identify and draw it, and write its functions
Junior secondary Agriculture
(workbook 1)byAnthony.Youdeowei et-al page 5-7,16.
(workbook 1)byAnthony.Youdeowei et-al page 5-7,16.
REFERENCE
TEXTS:
TEXTS:
•
Intensive Agricultural Science for
J.S.S. 1, 2 & 3 by E. U. Okaro.
Intensive Agricultural Science for
J.S.S. 1, 2 & 3 by E. U. Okaro.
•
Essentials of Agricultural Science
for J.S.S. & Colleges by Earnest ChukwudiAnie.
Essentials of Agricultural Science
for J.S.S. & Colleges by Earnest ChukwudiAnie.
•
Agricultural Science for JSS (Upper
Basic Education) by L. A. Are et al.
Agricultural Science for JSS (Upper
Basic Education) by L. A. Are et al.
•
Prescribed Agricultural Science for
J.S.S. by S. E. Omoruyi et al.
Prescribed Agricultural Science for
J.S.S. by S. E. Omoruyi et al.
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