PPT on Fertilization of plants

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WELCOME TO MY PRESENTATION

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Present By:

Name: Md Rubel HossainID # 12309056Program: BSAg

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Tropic name:

Fertilization of plants

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# fertilization is the fusion of two dissimilar sexual reproductive units, call gametes.

Fertilization:

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Fertilization

The process by which two gametes fuse to become a zygote, which develops into a new organism. The resultant zygote is diploid.

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Parts of fertilization:

Pollentube

Progamy

Chalazogamy

Egg cellFemale cell

orZygote

Endosperm

Pertenocarpy

Antpodal cell

Synergid

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A pollen tube is part of the male gametophyte of seed plants. It acts as a conduit to transport the male gamete cells from the pollen grains. Either from the stigma to the ovules at the base of the pistil.

Pollen tube:

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Pollen tube

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This is the commonest type of fertilization seen in angiosperms here the entry of the pollen tube into the ovary takes place through the microphyle .

Porogamy:

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Chalazogamy:

In plants like casuarinas, the entry of pollen tube takes place through the chalaza.

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Egg cell:

An ovule, inside the petals is a flower’s sexual organs, its stamens and pistil. The pistil consists of three parts: stigma, style, and ovary. The stigma traps pollen grains that are needed for fertilization of eggs.

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Endosperm:

Endosperm is the tissue produced inside the seeds of most flowering plants around the time of fertilization.

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Perthenocarpy:

Is the process in which the plants that have lost capacity to produce seeds such as oranges are reproduced.

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Antipodal cell:

The nuclei are derived by the division of the megaspore nucleus. There is an egg nucleus and two synergies’ at the microphyle end. There are nuclei at the opposite and these become the antipodal cell.

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Synergid:

Is one of two small cells living the egg in the mature embryo sec of a flowering plant.

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HAVE YOU ANY

QUESTION ?

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Thanks

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