Question

What marks the end of juvenile phase in flowering plants?

Answer 1

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The beginning of reproductive phase(start of reproduction) in plants, marks the end of a Juvenile phase in flowering plants

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Answer 2

Answer:

The end of the juvenile phase in the flowering plant is marked by the onset of the adult phase or the reproductive phase.

Explanation:

• Juvenile phase – It is the phase when the plant is incapable of being induced to flower.
• When a plant undergoes from juvenile phase to a reproductive phase, it is known as a phase change.

• Reproductive or the adult phase- It is the phase when a plant reproduces sexually (flowering occurs.)

Both juvenile and reproductive phases are visible in Espostoa (species of cactus) when a phase change occurs, it affects only one narrow strip of the shoot, as the shoot apical meristem continues to function, one side of the shoot produces adult characters, and able to produce flowers, and the other sides of the same shoot are juvenile and cannot flower.