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The fruit growth pattern in guava is:

  • A.simple sigmoid curve
  • B.single sigmoid curve
  • C.double sigmoid curve
  • D.triple sigmoid curve

Answer: C

The fruit growth pattern in guava is a double sigmoid curve. Growth is rapid at first, slows in a middle lag phase while the seed hardens, and then picks up again as the fruit swells and ripens. This gives two S-shaped phases.

A simple or single sigmoid curve has only one S-shaped phase and a triple sigmoid has three, so options A, B and D do not describe the guava.

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