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Pollination and Fertilization in Plants (in Hindi)
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In this lesson, Aman has explained in detail about the working of fertilisation system in plants.

Aman Srivastava is teaching live on Unacademy Plus

Aman Srivastava
Selected under Ministry of Defence,CGDA;Cleared UPSEE, debate enthusiast Edu: An engineer in electronics and communication from I.E.T luckn

U
Unacademy user
amazing concepts and experience
RK
bfV:::::::::::::im:::I x:कानेश:ने::':नेकेके:':.:"में
Bro I am south Indian.sir English version?
Aman Srivastava
3 years ago
Hi, it will be uploaded within 24 hours.
Jamana Raghava
2 years ago
bro what to do for history,geography
Jamana Raghava
2 years ago
I am in Delhi from mukarji nagar
Jamana Raghava
2 years ago
I can't understand Hindi
Jamana Raghava
2 years ago
I am from obc category.how many marks I have to score pre and mains to become customs inspector
Jamana Raghava
2 years ago
pls reply me bro
Jamana Raghava
2 years ago
pls give me plan for that
Jamana Raghava
2 years ago
thnku
Jamana Raghava
2 years ago
I am preparing for banking last 2yrs.2 times failed in I review bank po
Jamana Raghava
2 years ago
interview
Jamana Raghava
2 years ago
I am rural background student
Jamana Raghava
2 years ago
pls motivate me and make plan for me bro
you explained stamen part very well but you forgot to explain the pistil part(female part).
Aman Srivastava
2 years ago
Hi, actually the pistil part is not required to explain the pollination process, hence i deliberately left it as it may create confusion to non science background students. The fourth whorl is gynoecium i.e the pistil part.
Uday Sharma
2 years ago
okay mate. I got it.
Kunal Mishra
2 years ago
sir have u ever joined aakash iit jee???
Utkarsh Arora
2 years ago
Dear Aman, request you to kindly upload a detailed video giving us the description of the preferences of the posts. Also please advice the preference in which we should fillt he form. Placing the higher level jobs first and continuing.. Thank you for your guidance.
Uday Sharma
2 years ago
hi, Utkarsh Arora Aman have already uploaded his video on YouTube regarding your query. just wait for sometime, he will upload the video regarding this. If you want to watch the video, you can go on YouTube and search with name of him.
hey Aman I noticed that you forgot to mention the fourth whorle in the slide although YouTube explained it very well in the slide. if my comment come into your notice, please have a glance over it. thanks.
Thanks you very much sir..
  1. Fertilization and Pollination -for SSC-CGL


  2. ABOUT ME Name: Aman Srivastava o B.tech in Electronics & Communication (I.E.T Lko) Cleared SSC-CGL 2016 pre + mains Follow me on Unacademy Please rate ,review & share


  3. FLOWER: Flower is a special organ of flowering plants (angiosperms) which works as the reproductive system. A flower is composed of four distinct whorls. (1) The outermost whorl is called calyx. (composed of green leaf-like structures; called sepals.) (2) The second whorl is called corolla. (composed of colourful structures; called petals.) Petals are colourful so that insects and other animals can be attracted towards them. This is necessary for pollination. (3) Androecium: The third whorl is called androecium It is composed of stamens. It has a tube-like portion is called filament and a capsule like structure at the top is called anther. The anther produces pollen grains; which are the male gametes


  4. Stigma Petal Anther Style Filament Sepal Ovary Receptacle -


  5. POLLINATION: The transfer of pollen grains from anthers to stigma is called pollination. Self Pollination: When anthers of the same flower are transferred to the stigma. Cross Pollination: When anthers from a different flower are transferred to the stigma. Plants need help from various agents of pollination to carry out cross pollination. . .Wind, insects, birds and other animals play the role of agent of pollination.


  6. _ Stigma Pollen Anther Ovule (egg)


  7. FERTILIZATION: The fusion of the male gamete and the female gamete. When pollen settles on top of the stigma, it germinates to produce a pollen tube The pollen tube enters the ovary through the style. Male nuclei are transferred to the ovary, through the pollen tube. The cell formed, just after fertilization, is called zygote. Zygote develops into embryo and embryo develops into a seed. The seed is an embryo which is enclosed in a protective coat. The ovary gets transformed into fruit.


  8. Pollen grains Stigma Style Pollen tube Polar Nuctel Ovary Embryo sac Micropyle Egg