Lesson Plan 3
Title
Nutrient Stress: Visual Diagnosis of Nutrient Disorders
Author
Nalini Pandey
Name of Paper
Stress Physiology
Student Learning Outcome
(SLO)
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How this SLO fits within the
context of the paper
Prerequisite knowledge of
students
List of learning materials
needed to deliver the lesson
Mineral nutrients are essential for the proper growth and development
of plants. Nutrient deficiencies or toxicities cause stress and affect plant
yield and productivity. It is important therefore to know how these are
visually manifested in plants.
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Step by step description of how
the lesson would be delivered
Demonstrate knowledge and understanding of Mineral Nutrition of
Plants.
Demonstrate knowledge and understanding of the criteria for
essentiality
To be able to identify and diagnose common plant nutrient disorders
(deficiencies and toxicities)
To be able to understand and differentiate between visual symptoms
of nutrient deficiencies and toxicities.
Know potential limitations of visual diagnosis
Understand how to use a key for identifying nutrient disorders
Demonstrate knowledge and understanding of the methods used to
study nutrient disorders
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2.
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5.
Basic concepts of the absorption of water and ions by plants
An understanding of what inorganic plant nutrients are
Computer skills to be able to access the internet
An understanding of designing and conducting experiments
Introduction to Plant Physiology- W.G. Hopkins, John Willey & Sons
Mineral Nutrition of Higher Plants- H. Marschner, Academic Press,
New York, USA
Principles in Plant Nutrition, E. Mengel & E. A. Kirkby, International
Potash Institute, Bern, Switzerland. Plant Micronutrients
Plant Physiology- Taiz L and Zeiger E, 2002, Sinaer Associates,
Massachusets
Access to internet;
www.plantphys.net.
http://4e.plantphys.net/article.php?ch=8&id=289.
http://www.agmin.com.au/Nutrient & Deficiency Guide
Files/Deficiency Symptoms in Crops.htm.
http://www.hbci.com/~wenonah/min-def/list.htm
Ask students to present their concepts of Mineral Nutrition
Explain the criteria of essentiality of nutrients
Explain them the concept of the Macro- and Micronutrients.
Ask them to enumerate the essential Micro- and Macro-nutrients
known to them.
Describe the Plant Nutrient Symptoms Terminology
6. Explain the visual deficiency effects of each Micro- and Macronutrients
7. Go to: http://www.biologie.uni-hamburg.de/b-online/library
/plant_physiology/minerals.html
 http://4e.plantphys.net/article.php?ch=8&id=289.
 http://www.back-to-basics.net/nds/index.htm
8. Homework:
a. Students should enumerate the differences in the visual nutrient
disorders.
b. Students should prepare a key for identifying symptoms
c. Students to design, conduct and analyze experiments to
demonstrate at least two nutrient deficiency
Estimated amount of time to
deliver the lesson
Class room: 1hr X3 lectures
Laboratory: 1hr X 2 classes
Experiment: 1 month
Assessment Rubric for Lesson 3
Criteria
Total
Marks
Proficiency levels
Not proficient
Proficient
Exemplary
Theory (Total Marks: 100)
Demonstration of
knowledge and
understanding of
visual symptoms of
nutrient disorders
100
0-30 marks
30-70 marks
70-100 marks
Answers less than 3
questions correctly
Answers 3 to 7
questions correctly
Answers 7-10 questions
correctly
Practical ( 100 Marks)
Experimental
designing to
demonstrate 2
nutrient disorders
0-5 marks
6-10 marks
11-15 marks
15
More than 2 mistakes
in experimental
design
1-2 mistakes in
experimental design
No mistake in
experimental design
Listing and arranging
material required for
demonstrating
nutrient disorders
10
1-3 marks
4-6 marks
7-10 marks
Unable to list all
requirements
Able to list all
requirements but
unable to arrange for
all
Able to list and arrange
for all requirements
Handling of
equipment
10
1-3 marks
4-6 marks
7-10 marks
Improper handling
Able to handle
apparatus but not
with precision
Able to set up apparatus
with precision as per
requirement
Handling of biological
material
10
1-3 marks
4-6 marks
7-10 marks
Improper handling
Able to handle
biological material
with care, not
precision
Able to handle biological
material with care and
precision
Actual Conduct of
Experiment
15
1-5 marks
6-10 marks
11-15 marks
More than 2 mistakes.
No replication. Was
unable to demonstrate
symptoms
1-2 mistakes. Only 2
replicates taken.
Could demonstrate
symptoms of only
one disorder
No mistakes. Data
recorded from 3
replicates. Could
demonstrate symptoms
of 2 nutrient disorders
1-3 marks
4-6 marks
7-10 marks
Presentation of
results
Statistical analysis of
results
Interpretation and
Discussion of Results
Identification of
sources of error and
need for further
investigation
10
10
10
10
Written descriptions.
No tables and
photographs of
symptoms
Only observation
tables and
description. No
photographs
Description of data with
tables and photographic
illustrations of symptoms
in plants
1-3 marks
4-6 marks
7-10 marks
No statistical analysis
Minimum (Primary)
statistical analysis
Appropriate complex
statistical analysis
1-3 marks
4-6 marks
7-10 marks
Incorrect
interpretation. Less
than 2 supporting
evidences from other
related studies
Correct
interpretation based
on 2-3 supporting
evidences from other
related studies
Correct interpretation
based on more than 5
supporting evidences
from other related
studies
1-3 marks
4-6 marks
7-10 marks
No sources of error
identified and no
suggestions
Sources of error
identified but no
suggestions for
further investigation
Sources of error
identified with
suggestions for further
investigations