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Phytohormones assist development of parthenocarpic fruits

How do phytohormones assist the development of the parthenocarpic fruits?

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Parthenocarpic fruits are those produced devoid of fecundation. Some plants naturally create parthenocarpic fruits, such as the banana tree, stimulated through their own hormones.

Angiosperms that don’t naturally create parthenocarpic fruits might do it if auxins are applied to flowers before fecundation. Thus even without fecundation the ovaries grow and fruits are formed though seedless.

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