Transcript Module VI: Nutrient Deficiency Symptoms

Module VI: Nutrient Deficiency Symptoms
Lesson 3: Deficiency Symptoms of Secondary Nutrients
Unit 3: Magnesium Deficiency Symptoms
After completing this Unit, you should be able to
answer:
1. Under what conditions magnesium deficiency
results in chili pepper?
2. Describe the leaf symptoms due to magnesium
deficiency in chili pepper?
3. How the chili pepper plants look in magnesium
deficient field?
Module VI: Nutrient Deficiency Symptoms
Lesson 3: Deficiency Symptoms of Secondary Nutrients
Unit 3: Magnesium Deficiency Symptoms
As magnesium is not held tightly in soils, it is
more susceptible to leaching losses from the
root zone.
Magnesium deficiency is most prevalent on
sandy-textured soils, which are subject to
leaching, particularly during seasons of excess
rainfall.
Module VI: Nutrient Deficiency Symptoms
Lesson 3: Deficiency Symptoms of Secondary Nutrients
Unit 3: Magnesium Deficiency Symptoms
The leaves are usually pale green
to yellow in color with many brown
lesions. The symptoms develop
firstly on older leaves and advance
upwards to younger leaves.
Observe pale green to
yellow leaves.
Module VI: Nutrient Deficiency Symptoms
Lesson 3: Deficiency Symptoms of Secondary Nutrients
Unit 3: Magnesium Deficiency Symptoms
The predominant symptom is dark
green veins with yellow areas
between the veins (interveinal
chlorosis).
In some chili pepper cultivars,
orange, purple, or brown lesions
develop within the chlorotic
tissues.
Observe dark green veins
with yellow areas.
Module VI: Nutrient Deficiency Symptoms
Lesson 3: Deficiency Symptoms of Secondary Nutrients
Unit 3: Magnesium Deficiency Symptoms
Eventually these lesions expand and often join together
until the margins of the leaf turn orange, red, or purple
in color, depending on the degree of pigmentation.
When the deficiency is very severe, the margins of the
older leaves turn brown, wither, and die.
Module VI: Nutrient Deficiency Symptoms
Lesson 3: Deficiency Symptoms of Secondary Nutrients
Unit 3: Magnesium Deficiency Symptoms
With this, the Unit 3 on Magnesium Deficiency Symptoms
and the Lesson on Deficiency symptoms of Secondary
Nutrients in chili pepper concludes.
The next Lesson in this Module is about deficiency
symptoms of micronutrients in chili pepper.
Click on the ‘Lessons’ button to select the lesson