After successful completion of 5 Units in this Lesson, you will be able to answer:

1
Module VI Nutrient Deficiency Symptoms
Virtual Academy for the Semi Arid Tropics
Lesson 4 Deficiency symptoms of Micronutrients

• After successful completion of 5 Units in this
  Lesson, you will be able to answer
• Under what soil conditions the deficiencies of
  each micronutrient occur?
• Describe the plant symptoms due to nutrient
  deficiencies of each micronutrient nutrient in
  groundnut crop?

Course on Groundnut Production Practices
2
Module VI Nutrient Deficiency Symptoms
Virtual Academy for the Semi Arid Tropics
Lesson 4 Deficiency symptoms of Micronutrients
The 5 Units in this Lesson are Unit 1 Iron
Deficiency Symptoms Unit 2 Zinc Deficiency
Symptoms Unit 3 Boron Deficiency
Symptoms Unit 4 Molybdenum Deficiency
Symptoms Unit 5 Manganese Deficiency
Symptoms
Course on Groundnut Production Practices
3

• After successful completion of this Unit you
  should be able to answer
• Under what conditions boron deficiency results in
  groundnut?
• Describe the symptoms due to boron deficiency in
  groundnut?

4
Boron deficiency has been reported from many
groundnut-growing areas in India. Soil samples
from parts of Tamil Nadu, UP, Maharashtra and
Gujarat were found to be deficient in boron It
occurs on deep, and highly weathered soils.
5
The inner faces of the boron deficient groundnut
cotyledons are depressed and discolored (Figs.).
This is classified as a form of internal damage
and has been termed hollow heart.
6
Module VI Nutrient Deficiency Symptoms
Virtual Academy for the Semi Arid Tropics
Lesson 4 Deficiency symptoms of Micronutrients
With this, the Unit 3 on Boron Deficiency
Symptoms in this Lesson concludes. Next, in
Unit 4 the deficiency symptoms of molybdenum are
briefly described. In the subsequent units in
this Lesson deficiency symptoms of other
micronutrients in groundnut are
explained. Select Unit 4 in Lesson 4 of Module
VI from Course contents
Course on Groundnut Production Practices