biology-class-12-unit-03-chapter-02-reproduction-sexual-reproductionin-flowering-plants-l-2-5-g-5cmwdl2bk

### <Success style="font-size:25px"> Reproduction Sexual Reproductionin Flowering Plants L-2 </Success>
### <primary style="font-size:24px"> Dehiscence of anther </primary>
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- Pollen grains are getting dried up →"Powdery" (Pollen sacs)

- Further drying will break the partition between pollen sac → One chamber

- As the drying continuous, endothecium cells → dehydration → Contract

- Pollen sac is going to be broken → Disperse the pollen grains

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<footer style = "font-size: 18px">Types of microspore tetrads</success> $\rightarrow$ Pollen grains $\rightarrow$ <span style = "color:blue"> Dehiscence of anther </span> $\rightarrow$ Pollination $\rightarrow$ Types of self pollination </footer>

### <Success style="font-size:25px"> Reproduction Sexual Reproductionin Flowering Plants L-2 </Success>
### <primary style="font-size:24px"> Types of self pollination </primary>
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- **Self pollination**

- Geitonogamy

- Autogamy

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<footer style = "font-size: 18px">Dehiscence of anther $\rightarrow$ Pollination $\rightarrow$ <span style = "color:blue"> Types of self pollination </span> $\rightarrow$ Types of self Pollination $\rightarrow$ Autogamy </footer>

### <Success style="font-size:25px"> Reproduction Sexual Reproductionin Flowering Plants L-2 </Success>
### <primary style="font-size:24px"> Types of self Pollination </primary>
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- 1. Autogamy (Bisexual flower) - Flower Anther $\rightarrow$ stigma

- 2. Geitnogamy - One flower to another flower of same plant

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![image](/subject-images/iitpal/image/biology-class-12-unit-03-chapter-02-reproduction-sexual-reproductionin-flowering-plants-l-2_5-g-5cmwdl2bk-04.jpg)	![image](/subject-images/iitpal/image/biology-class-12-unit-03-chapter-02-reproduction-sexual-reproductionin-flowering-plants-l-2_5-g-5cmwdl2bk-05.jpg)

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<footer style = "font-size: 18px">Pollination $\rightarrow$ Types of self pollination $\rightarrow$ <span style = "color:blue"> Types of self Pollination </span> $\rightarrow$ Autogamy $\rightarrow$ Advantages of self pollination </footer>

### <Success style="font-size:25px"> Reproduction Sexual Reproductionin Flowering Plants L-2 </Success>
### <primary style="font-size:24px"> Autogamy </primary>
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- **1. Cleistogamy -**"Flower never open"$\rightarrow$Self pollination

- example - _Oxalis_

- **2. Homogamy -**Anther and stigma matures at the same time

- example - _Mirabilis_

- **3. Bud pollination -**Anther and stigma are mature whithin the bud

- example - Wheat, rice etc

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<footer style = "font-size: 18px">Types of self pollination $\rightarrow$ Types of self Pollination $\rightarrow$ <span style = "color:blue"> Autogamy </span> $\rightarrow$ Advantages of self pollination $\rightarrow$ Disadvantages of self pollination </footer>

### <Success style="font-size:25px"> Reproduction Sexual Reproductionin Flowering Plants L-2 </Success>
### <primary style="font-size:24px"> Advantages of self pollination </primary>
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- **1.** It Increases the chances of pollination $\rightarrow$ Fertilization $\rightarrow$ off springs $\rightarrow$ more productivity

- **2.** Purity of species will be maintained

- **3.** It does not require to produce large number of pollen grains

- **4.** It does not have to produce flower with colored Patels, Scent, Nector

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![image](/subject-images/iitpal/image/biology-class-12-unit-03-chapter-02-reproduction-sexual-reproductionin-flowering-plants-l-2_5-g-5cmwdl2bk-09.jpg)

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<footer style = "font-size: 18px">Types of self Pollination $\rightarrow$ Autogamy $\rightarrow$ <span style = "color:blue"> Advantages of self pollination </span> $\rightarrow$ Disadvantages of self pollination $\rightarrow$ Cross pollination </footer>