Parthenocarpy

As parthenocarpy or Jungfernfrüchtigkeit fruit development is referred to without prior fertilization and seed formation in plants. The fruit development can be triggered by mechanical stimuli of the Journal of the fruit blossom for example, which leads to a growth substance distribution. It is promoted by favorable climatic conditions, or by frost flowers, if only the ovules, but not the ovaries are damaged.

A distinction between inductive parthenocarpy, which is triggered by external stimuli, vegetative parthenocarpy, which occurs spontaneously, and Scheinparthenokarpie ( Stenospermokarpie ), in dying the seed after fertilization, and the ripe fruit appear parthenocarpic, as with so-called seedless grapes.

The parthenocarpy is common in apples, pears, grapes, figs, pineapples, citrus fruits and bananas, but can be artificially induced by the treatment of flowers with auxin in other plants; in this way, for example seedless tomatoes, cucumbers and eggplants draw.

Parthenocarpy is also genetically engineered either to obtain seedless fruits or in order to prevent the spread of transgenic plants.