Differences between Monocotyledons and Dicotyledons

Subject :

Agricultural Science

Topic :

Crop Plant forms (cont.) (d) Monocotyledons (e) Dicotyledons (Differences between Monocot & Dicot Required).

Class :


JSS 1  / Basic 7

 

Term :

First Term

 

Week :

Week 8

 

Previous Knowledge :

The pupils have previous knowledge of

 

Crop Plant Forms (cont. (a) Aquatic form(b) Terrestrial Form(c) Broad leaf Crops (d)Narrow leaf crops.

Behavioural Objectives :  At the end of the lesson, the pupils should be able to

  • List five crops that are monocotyledons and five crops that are dicotyledous.
  • state 6 differences between monocotyledons and dicotyledous.

 

 

Content :

CONTENT:

i. Monocotyledon and Dicotyledon plants

ii. Difference between monocotyledon and Dicotyledon plants

Sub – Topic 1: Monocotyledon and Dicotyledonous.

Monocotyledons plants: These are plants with one seed leaf or Cotyledons e.g. maize, rice, oil palm, coconut, wheat, millet, banana etc.

Dicotyledonous plants: These are plants with two seed leaves or cotyledons e.g. cowpea, mango, citrus, cashew groundnuts, tomatoes, kola, mango etc.

EVALUATION

(i) List five crops that are monocotyledons and five crops that are dicotyledous.

Sub – Topic 2: DIFFERENCE BETWEEN MONOCOTYLEDONS & DICOTYLEDONS

STRUCTURE MONOCOT FEATURES DICOT FEATURES
1.

2.

3.

4.

Root

Stem

Seeds

Pollinations.

Fibrous root system.

Single erect stem without branches.

One seed leaves or cotyledons

Usually by wind

Tap root system.

Stem with many branches.

Two seed leaves or cotyledons.

Usually by insects and other

5. Leaf Narrow and long Broad and short
6. Leaf venation Paralleled veined Net veined
7. Germination By hypogeal (seed remains below the soil By epigeal (seed comes above the soil.
8. Flowers Many and unscented Few coloured and scented

(i) State 6 differences between monocotyledons and dicotyledous.

Diagrams: draw

A monocot plant of maize with its complete parts

A dicot plant e.g. tomatoes with its complete parts.

 

 

Differences between Monocotyledons and Dicotyledons

Structure Monocot Features Dicot Features
1 Root i. Fibrous root system. Tap root system.
2 Stem ii. Single erect stem without branches.
iii. Scattered vascular bundles.
Stem with many branches
Vascular bundles in ring
form.
3 Seeds iv. One seed leaf or cotyledon
v. Exhibits hypogeal germination
Two seed leaves or cotyledons.
Exhibits epigeal germination
4 Flower vi. Usually pollinated by wind
vii. None colourful, inconspicuous
and unscented.
viii. Floral parts in threes or
multiples of threes
Pollinated by insects and other
animals.
Colourful, inconspicuous and
scented.
Floral parts in four or five or
multiples of four or five.
5 Leaf ix. Leaves are long and narrow.
x. Leaf stalk or petiole is absent.
xi. Have parallel veination.
xii. The leaf base is broad and
clasp around the stem.
Leaves are short and broad.
Have leaf stalk or petiole.
Leaves are with net veination.
The leaf base is narrow.

EVALUATION

  1. Give five differences between a maize seed and cowpea.

 

Presentation

The topic is presented step by step

 

Step 1:

The class teacher revises the previous topics

 

Step 2.

He introduces the new topic

 

Step 3:

The class teacher allows the pupils to give their own examples and he corrects them when the needs arise

 

 

 

Conclusion :

 

The class teacher wraps up or conclude the lesson by giving out short note to summarize the topic that he or she has just taught.

The class teacher also goes round to make sure that the notes are well copied or well written. He or she does the necessary corrections when the need arises.

 

Assignment :

Prepare for the next lesson by reading about

 

ASSIGNMENT

Each student to draw a germinating seedling of maize and cowpea to show hypogeal and epigeal germination.

WEEKEND ASSIGNMENT

Plant maize and groundnut seeds and observe them after germination and classify them into monocotyledons and dicotyledons.

(Visited 502 times, 1 visits today)

error: Alert: Content is protected !!