Nutritional/Physiological Disorders:Zinc Deficiency
- Deficiency develops as a result of imbalanced fertilizer application and high density planting, thereby limiting yield.
- Leaf width is reduced more than the length thereby giving the leaves a lanceolate shape. Leaves become narrow and strap (Image1).
- The lower leaf surface shows purple pigmentation and exhibit interveinal chlorosis
- Fruit bunch tends to protrude outside the pseudostem and yield is reduced. In severely affected plants fruit development is slow, the bunch is yellow and remains almost horizontal for a relatively longer period.
- Fingers appear twisted,shorter, smaller, thinner and lighter green in colour.
- Distal ends of fruits are nipple shaped.
- Zinc deficiency is more prevalent in basic soils than in acid soils.