2 thoughts on “Define pollination and it’s classification system of different types.<br /><br />Class 12th NCERT biology seminar.<br /><br />IlDR”
Class 12th Biology – Pollination
1.DefinePollination.
A: The transfer of pollen grains shed from the anther( Male reproductive organ in flower ) to the stigma of pistil( Female reproductive organ in flower ) is termed known as pollination. This eventually precedes to the fertilization.
2.TypesofPollination
A: In classification system there are about 2 types of pollination:
Self pollination
Cross pollination ( or ) Xenogamy
Self pollination ( fertilisation in the same plant ) is divided into two types, they are:
Autogamy – Transfer of pollen grains from the anther to the stigma of the same flower.
Geitonogamy – Transfer of pollen grains from the anther to the stigma of the different flower of same plant.
Cross pollination: Transfer of pollen grains from the anther to the stigma of the different flower of a different plant ( or ) fertilization in the different plant. It is divided into two factors, these factors are also known as agents of pollination:
Abiotic factors – pollination done by natural occurrences. for example- Wind and Water.
Biotic factors – pollination done by living beings. for example- Ants, snakes, bats, insects and birds, etc.
Furthermore, Abiotic factors are divided into two types, they are:
Anemophily: It refers to the pollination brought about by wind.
Hydrophily: It refers to the pollination brought about by water.
Biotic factors are divided into four types( major ), they are:
Entomophily: It refers to the pollination brought about by insects.
Chiropterophily: It refers to the pollination brought about by bats.
Malacophily: It refers to the pollination brought about by snails.
Ornithophily: It refers to the pollination brought about by birds.
Agents Of pollination
Myrmecophily: It refers to the pollination brought about by Ants. for example- Medicago sativa, Melitotus officinalis.
Elephophily: It refers to the pollination brought about by elephants. for example- Rafflesia
Ophiophily: It refers to the pollination brought about by snakes. for example- Arum.
[tex]\small\text \green{Pollination \: \: is \: \: the \: \: transfer \: \: \: of \: \: \: pollen} \\ \small\text\green{from \: \: \: a male \: part of a plant to a female} \\ \small\text\green{part \: \: \: \: \: of \: \: \: a \: \: \: \: \: plant, \: \: \: \: \: later \: \: \: \: \: enabling} \\ \small\text\green{fertilisation and the production of seeds,} \\ \small\text\green{most often by an animal or by wind. \: \: \: \: \: \: \: }[/tex]
[tex] \\ [/tex]
[tex] \large \text{\fcolorbox{red}{blue}{Types of Pollination}}[/tex]
Class 12th Biology – Pollination
1. Define Pollination.
A: The transfer of pollen grains shed from the anther( Male reproductive organ in flower ) to the stigma of pistil( Female reproductive organ in flower ) is termed known as pollination. This eventually precedes to the fertilization.
2. Types of Pollination
A: In classification system there are about 2 types of pollination:
Self pollination ( fertilisation in the same plant ) is divided into two types, they are:
Cross pollination: Transfer of pollen grains from the anther to the stigma of the different flower of a different plant ( or ) fertilization in the different plant. It is divided into two factors, these factors are also known as agents of pollination:
Furthermore, Abiotic factors are divided into two types, they are:
Biotic factors are divided into four types( major ), they are:
Agents Of pollination
[tex]\small\text \green{Pollination \: \: is \: \: the \: \: transfer \: \: \: of \: \: \: pollen} \\ \small\text\green{from \: \: \: a male \: part of a plant to a female} \\ \small\text\green{part \: \: \: \: \: of \: \: \: a \: \: \: \: \: plant, \: \: \: \: \: later \: \: \: \: \: enabling} \\ \small\text\green{fertilisation and the production of seeds,} \\ \small\text\green{most often by an animal or by wind. \: \: \: \: \: \: \: }[/tex]
[tex] \\ [/tex]
[tex] \large \text{\fcolorbox{red}{blue}{Types of Pollination}}[/tex]
[tex] \text{ \: \: \: \: \: \: \: \: 1. \: \red{Self- Pollination}} \\ \text{ \: \: \: \: \: \: \: \: \: \: \: 2. \: \red{Cross-Pollination}}[/tex]