MINERAL NUTRITION

Question 1

In young plants, stunted growth and chlorosis (yellow coloration)
of older leaves; often abundant anthocyanin in veins; stems
short and woody

Answer 1

Nitrogen (N)

Question 2

Young plants stunted; leaves dark blue green, sometimes
purplish; stems slender, not woody; often with anthocyanin in
veins and may become necrotic

Answer 2

Phosphorus
(P)

Question 3

Yellow with marginal or mottled chlorosis which then develops
into necrosis occurring at leaf tip and margins towards leaf
base; margin “firing” (rapid drying of margins and tips)

Answer 3

Potassium (K)

Question 4

Interveinal chlorosis appearing first on old leaves; severely
affected leaves wilt and shed or may abscise; brittleness of
leaves common; necrosis often occurs

Answer 4

Magnesium
(Mg)

Question 5

Young shoots deformed in appearance; breakdown of meristematic tissues in stems and roots (death in acute cases);
roots poorly developed; symptoms appear near growing points
of stems and roots; little or no fruiting

Answer 5

Calcium (Ca)

Question 6

Leaves light green to yellow, appearing first along veins of young leaves; stems often slender

Answer 6

Sulfur (S)

Question 7

Interveinal chlorosis appearing first on young leaves; tendency
for chlorosis of all aerial parts, often becoming necrotic; in some
cases, leaves may completely bleached with margins and tips
scorched

Answer 7

Iron (Fe)

Question 8

Willting of leaves, especially at leaf margins; with severe
deficiency curling of youngest leaves, followed by shriveling;
necrosis might occur

Answer 8

Chlorine (Cl)

Question 9

Terminal leaves necrotic, shed prematurely; internodes of
terminal shoots shortened; apical meristems blacken and die;
plants dwarfed, stunted

Answer 9

Boron (B)

Question 10

Mottled chlorosis with veins green, appearing first on young
leaves, may spread to old leaves; stems yellowish green, often
hard and woody

Answer 10

Manganese
(Mn)

Question 11

Stunted growth in dicots due to reduction in internodal growth
(“rosetting”) and drastic decrease in leaf size; whitish chlorotic
streaks between veins in older leaves; chlorosis of lower leaves
followed by necrotic spots

Answer 11

Zinc (Zn)

Question 12

Wilting of terminal shoots frequently followed by death; leaf color often faded

Answer 12

Copper (Cu)

Question 13

Light yellow chlorosis of older leaves; flowers may fail to grow

Answer 13

Molybdenum
(Mo)

Question 14

Root growth severely inhibited; leaf tip necrosis with urea application

Answer 14

Nickel (Ni)