Presentation is loading. Please wait.

Presentation is loading. Please wait.

Reproduction in Flowering Plants

Similar presentations


Presentation on theme: "Reproduction in Flowering Plants"— Presentation transcript:

1 Reproduction in Flowering Plants
Prof. N.A. Malla Department of Botany GDC Bijbehara

2 Flower Flower is the reproductive part of the plant.
Flower is the modification of the shoot.

3 The Parts of a Flower Most flowers have four parts: Sepals Petals
Stamens Carpels

4 The Parts of a Flower Sepals protect the bud until it opens.
Calyx: Collection of sepals. Sepals protect the bud until it opens. Carolla: Collection of petlas. Petals attract insects. Androecium: Collection of stamens. Stamens make pollen. Gynoecium: Collection of carpels. Carpels grow into fruits which contain the seeds.

5 Stamen: Male Reproductive Part
Male reproductive organ Stamen Anther: produces male gametes by meiosis. Filament :holds the anther up.

6 Carpel: Female Reproductive Part
Female reproductive organ Pistil Stigma : Top of the pistil, sticky surface for pollen to stick. Style : Connects the stigma to the ovary Ovary : Contains ovules ( eggs).

7 Angiosperm Life Cycle

8 Microgametogenesis

9 Megagametogenesis

10 Pollination Transfer of mature pollen grains from the anther to the stigma.

11 Pollination: Agencies
Flowering plants use the wind, insects, bats, birds and mammals to transfer pollen from the male (stamen) part of the flower to the female (stigma) part of the flower. © P. Billiet

12 Types of Pollination Self Pollination: Pollen from same flower. Cross Pollination: Pollen from a different flower.

13 Germination of Pollen Grain
When a pollen grain lands on the stigma, it germinates and a pollen tube grows down through the style to an ovule (egg).

14 Double Fertilization

15 Flower to Fruit

16 Ovule to Seed

17 Seed Anatomy

18 Seed Germination


Download ppt "Reproduction in Flowering Plants"

Similar presentations


Ads by Google