Deficiency Diseases and Disorders

Heart rot of beets and cracking in celery are classic symptoms of Boron (B) deficiency. Boron is essential for cell wall integrity and structural development in these crops.

Chronic deficiency occurs when a nutrient is supplied at a rate that is consistently lower than the plant's requirements over a long period, leading to slow growth and persistent symptoms.

Acute deficiency is characterized by a sudden onset of symptoms when a nutrient becomes unavailable, often during a period of rapid plant growth when demand is high.

Excess manganese (Mn) competes with iron (Fe), magnesium (Mg), and calcium (Ca) for uptake, often inducing deficiencies in these elements.

Plant deficiency symptoms are diverse and include chlorosis (yellowing), necrosis (tissue death), stunted growth, premature leaf fall, and inhibition of cell division. All these are recognized symptoms of nutrient deficiency.

Magnesium is the central atom of the chlorophyll molecule. Its deficiency leads to the breakdown of chlorophyll, resulting in chlorosis (yellowing of leaves).

Little leaf of brinjal (eggplant) is a classic symptom of zinc deficiency in plants.

Whiptail disease in cauliflower and other brassicas is specifically caused by a deficiency of molybdenum.

FeO (Ferrous oxide) is a classic example of a metal-deficient defect, where the ratio of iron to oxygen is less than 1:1 due to the presence of Fe(3+) ions replacing some Fe(2+) ions to maintain electrical neutrality.

Anemia is a condition characterized by a deficiency of red blood cells or hemoglobin in the blood, often caused by low iron levels.

Malnutrition is a broad term that encompasses both undernutrition (deficiencies) and overnutrition (excesses), representing any deviation from optimal nutritional status.

Undernutrition specifically refers to a deficiency in calories or nutrients, often characterized by underfeeding. Malnutrition is a broader term that can include overnutrition or specific nutrient imbalances.

Vitamin A deficiency is a leading cause of preventable blindness in children, particularly in developing countries.

Anemia is a condition characterized by a lack of healthy red blood cells, most commonly caused by an iron deficiency.