Physiological disorder

a) Sun scorch or sun scald:

• Caused due to direct exposure of fruits to sunlight.
• Thatching the branches with paddy straw, dry grass or hay to prevent direct exposure of fruits to sunlight.

b) Water stain:

• It is characterized by distinct dark streaks or stains which occurs down the side of fruit due to deposition of tannis.
• Blemishes can be rectified by treatment with weak solution of citric acid.

c) Internal breakdown:

• It is characterized by a slight discoloration at the blossom end of fruit.
• Water soaking progresses around the blossom end and ultimately to whole fruit.