1. Method of Instruction, techniques and activities
Objectives:
At the end of the discussion the students will be able to:
a. classify the requirements for the plants to grow healthy .
b. discuss the three aspect of light that affect plant growth.
c. named the 17 elements of plant growth.
2. Pre-test
Questions:
1. What are the requirements for the plans to grow healthy?
2. Whar are the three aspect of light that affect plant growth?
3. What are the 8 elements of plant growth?
Answer key:
1. The requirements for the plants to grow healhty are the following:
a. temperature
b. water
c. light
d. plant nutrients
2. The three aspect of light that affect plant growth are:
a. quality
b. quantity
c. duration
3. The 8 elements of plant growth are:
1. iron
2. zinc
3. molybdenum
4.manganese
5. boron
6. copper
7. cobalt
8.chlorine
3. Lesson Proper
Introduction
DID YOU KNOW THAT ... THE REQUIREMENTS FOR PLANTS TO GROW HEALTHY ARE:
temperature, water, light, and plant nutrients
Topic: PLANT REQUIREMENTS
4. Techniques for demonstration/ performance
Discussion
TEMPERATURE
Heat generally accelerates metabolic processes particularly photosynthesis and respiration .
WATER
It is required in photosynthesis.
It is needed for cell expansion and growth-water imbibition of seeds prior to germination.
Without adequate water leaves and herbaceous plants become flaccid and wilt.
It carries nutrients throughout the plant.
Evaporation of water cools the plant in hot water.
LIGHT
The three aspects of light that affect plant growth re quality, quantity, and duration.
Plants use red and blue light for photosynthesis. These colors and the far-read end of the spectrum also affect plannt growth, seed germination, flowering and other processes. Good rates of photosynthesis usually require light intensity equivalent to sunlight.
NUTRIENTS
Plants need 17 elements for normal growth.
Carbon, hydrogen, and oxygen are found in air and water.Nitrogen, potassium, magnesium, calcuim, phosphorous, and sulfur are found in the soil.
These six elements are used to relatively large amounts by the plant and are called MACRONUTRIENTS.
The eight other elements that are used in much smaller amounts and are called MICRONUTRIENTS , or TRACE ELEMENTS such as iron, zinc, molybdenum, manganese,boron, copper,cobalt, and chlorine.
5. Post-test and answer key
Directions: Supply the functions of the following:
MICRONUTRIENTS
1. Boron(B)
2.Copper (Cu)
3. Chloride (Cl)
FUNCTIONS
BORON(B) - helps in the use of nutrients and regulates other nutrients. Aids production of sugar and carbohydrates.
COPPER(Cu)- Important for reproductive growth aids in root metabolism and helps in the utization of proteins.
CHLORIDE(Cl)- aids plant metabolism

DEFICIENCIES/ EXCESS SYMPTOMS
BORON(B) - Premature shedding witches brooms forms
COPPER(Cu) - Stunted growth leaves are limp, curl or drop. Seed stalks are limp and bend over Carotene and other pigments reduced
CHLORIDE(Cl)- Wilting of leaves, especially at leaf margins.
SOURCES
BORON(B)- Organic matter compounds containing borax or borate
COPPER(Cu)- Compounds containing copper, cupric or cuprous
CHLORIDE(Cl) - Soil
BIBLIOGRAPHY
www.agriculture.com//http.Requirements for plant to grow healthy//
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www.yahoo.com