CLASSIFICATION OF CROPS ANNUAL, BIENNIAL AND PERENNIAL CROPS
SECOND TERM
LEARNING NOTES
SUBJECT: AGRICULTURAL SCIENCE
CLASS: JSS 1 (BASIC 7)
SCHEME OF WORK
WEEK 1
TOPIC: CLASSIFICATION OF CROPS
ANNUAL, BIENNIAL AND PERENNIAL CROPS
Previous lesson :
The pupils have previous knowledge of
Behavioral objectives:
At the end of the lesson, the pupils should be able to
- Explain the meaning of crops
- classify crops based on their life span
- explain the meaning of annual , biennial and perennial; crops
Instructional Materials:
- Wall charts
- Pictures
- Related Online Video
- Flash Cards
Methods of Teaching:
- Class Discussion
- Group Discussion
- Asking Questions
- Explanation
- Role Modelling
- Role Delegation
Reference Materials:
- Scheme of Work
- Online Information
- Textbooks
- Workbooks
- 9 Year Basic Education Curriculum
- Workbooks
Content:
WEEK 1
TOPIC: CLASSIFICATION OF CROPS
CONTENT: CLASSIFICATION OF CROPS
SUB-TOPIC 1: Classification of Crops
Crops can be classified based on their life cycle or lifespan: Lifespan is the period of existence of an organism before death. We see a variety of plants around us. Despite the fact that all of them have the same parts and functions, they are different. They appear distinctive with different types of leaves, flowers, stem, etc. Thus, crops are classified into Annual, Biennial and Perennial Crops.
ANNUAL CROPS: These are crops, which complete their life cycle (length of life) within one year or in one growing season. These crops grow into maturity, flower, produce seeds and eventually die within one year. Examples are maize, rice, sorghum, okra, tomato, yam, etc.
Annual crops are crops which complete their life cycle (length of life) within one year or in one growing season. These crops grow into maturity, flower, produce seeds and eventually die within one year. Examples are maize, rice, sorghum, soya-beans, guinea corn, cowpea, sweet potato, cotton, tomato, yam, etc.
BIENNIAL CROPS: These are crops, which take two years or two seasons to complete their life cycle. The vegetative parts grow into maturity in the first year or season, while the fruits or tubers are produced in the second year or season. Examples are cassava, cocoyam, onion bulbs, carrots, cabbage, etc.
These are crops, which take two years or two seasons to complete their life cycle. The vegetative parts grow into maturity in the first year or season, while the second year is for reproduction (i.e the formation of flowers, fruits and seeds) and then the plant dies. Examples are ginger, sugar beets, pineapple, cassava, cocoyam, plantain, carrots, cabbage, turnip, swede etc.
PERENNIAL CROPS: These are crops, which take more than two years to complete their life cycle. Their lives cover several growing seasons. Perennial crops are also called permanent crops. As you keep on maintaining them, they keep on producing from year to year. Examples are Rubber, Cocoa, Oil Palm, Orange, Mango, Pawpaw, Cashew, Guava, Tea, etc.
These are crops, which take more than two years to complete their life cycle. Their lives cover several growing seasons. Perennial crops are also called permanent crops. As you keep on maintaining them, they keep on producing from year to year.
Some are woody e.g shrubs and tree crops others are herbs e.g perennial grasses and legumes. Examples are pea, rubber, cocoa, oil palm, orange, mango, pawpaw (non-woody) cashew, guava, tea, etc.
Ephemeral Crops
These are crops that complete their life cycle within a very short period of time. They complete several life cycles within one growing season. Examples are tomato, okra, lettuce, Jew’s mallow (ewedu)
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
EVALUATION
- Explain the meaning of the following with relevant examples:
- Perennial crops
- Ephemeral crops
- Differentiate between the annuals and biennials and give five examples each.
- Give 3 examples of annual crops
- What is the other name of Perennial Crops? Give 6 examples.
- Name five crops that are Biennial
- Identify 10 different crops grown in your school farm and write the class they belong.
Conclusion: The class teacher gives out a short summary of the topic that has just been taught and he or she goes round to mark: