The shell color of pineapple fruit changes from green to yellow during maturation.Fruit began to change color at 120 day but the pattern of change of shell color depends on growing season.In early crop, at harvesting date of 120 day, when the fruit is ready, for consumption,85% of fruits are still green .In contrast,40% of fruit in the late crop had been changed to color score 3 (two lower row of eyes became yellow).