ppt on fertilization of plants
DESCRIPTION
This is a nice presentation on "Fertilization of plants". you can found all of the information of plant fertilization on this presentation. thanks.. www.leadmoneymedia.comTRANSCRIPT
1
WELCOME TO MY PRESENTATION
https://www.facebook.com/rubel570
2
Present By:
Name: Md Rubel HossainID # 12309056Program: BSAg
https://www.facebook.com/rubel570
3
Tropic name:
Fertilization of plants
https://www.facebook.com/rubel570
4
# fertilization is the fusion of two dissimilar sexual reproductive units, call gametes.
Fertilization:
https://www.facebook.com/rubel570
5
Fertilization
The process by which two gametes fuse to become a zygote, which develops into a new organism. The resultant zygote is diploid.
https://www.facebook.com/rubel570
6
Parts of fertilization:
Pollentube
Progamy
Chalazogamy
Egg cellFemale cell
orZygote
Endosperm
Pertenocarpy
Antpodal cell
Synergid
https://www.facebook.com/rubel570
7
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:
https://www.facebook.com/rubel570
8
Pollen tube
https://www.facebook.com/rubel570
9https://www.facebook.com/rubel570
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:
10https://www.facebook.com/rubel570
11https://www.facebook.com/rubel570
12
Chalazogamy:
In plants like casuarinas, the entry of pollen tube takes place through the chalaza.
https://www.facebook.com/rubel570
13https://www.facebook.com/rubel570
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.
14https://www.facebook.com/rubel570
15https://www.facebook.com/rubel570
16
Endosperm:
Endosperm is the tissue produced inside the seeds of most flowering plants around the time of fertilization.
https://www.facebook.com/rubel570
17https://www.facebook.com/rubel570
18
Perthenocarpy:
Is the process in which the plants that have lost capacity to produce seeds such as oranges are reproduced.
https://www.facebook.com/rubel570
19https://www.facebook.com/rubel570
20
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.
https://www.facebook.com/rubel570
21
Synergid:
Is one of two small cells living the egg in the mature embryo sec of a flowering plant.
https://www.facebook.com/rubel570
22
HAVE YOU ANY
QUESTION ?
https://www.facebook.com/rubel570
23
Thanks
https://www.facebook.com/rubel570