VIRGIN
FRUIT

 

Generally Fruit gives rise to starts from union of  egg cells in the ovule of the flower are
fertilized by pollen sperm nuclei.

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But,in some plants ,how ever ,fruit develops with
out  fertilization ,a phenomenon know as parthenocarpy(VIRGIN
FRUIT).

Why
the need for seedless fruits?

 

Parthenocarpic fruits has more advantages over
seeded fruits.they are

1.Longer shelf life and

2. Greater consumer appeal. 

3. parthenocarpy can be promote for increasing
winter and early production in horticulture plants.,  5,6; this says that possibility for the
consumers to  make avaliable fresh
horticultural products in all seasons.

Reasons

The most frequent reasons for seedless
fruits development are 1. Mutation

2.Pollination failure,or non functional eggs or
sperm. 3.Stenospermocarpy may also 
produce  seed less fruit,but the
seeds are actually aborted after fertilization.

4.Parthenocarpy(literally meaning “virgin fruit”)   The
natural or artificially  production of
fruit with out fertilization of ovules, which makes seedless fruits.

5.Some Plant Harmones(Auxins,Gibberlins,Cytokinins)

6. Ethylene.

7.Genetic engineering .  it says 
 that it is possible to prevent  fertilization it results to obtain
seedlessness  by modification of genome
in horticulture plants.

Some important seed less fruit crops

1.Water melon (triphloid)

2.Grapes

3.Oranges

4.Egg plant(Brinjal) In the case of eggplant,
the devoid of seeds prevents browning and texture reduction of the pulp.

5.Citrus.

6.Banana.

7.Tomatos.

How
to spread practice of seedless production.

 

A widespread agriculture practice for the production
of seedless parthenocarpic fruit ,by treating flowers with phytohormones before
pollination. Few harmones lieAuxin, gibberellin and cytokinins or mixtures of these
hormones have already proven to be effective in promote fruit development in
the absence of fertilization in several crop species, for example tomato and
eggplants 1.