Chapter : 6. Reproduction
Sexual Reproduction
Sexual Reproduction
Petals : Petals are coloured accessory floral organs which lie above the sepals. Petals attract insects to flowers for pollination.
Stamens : Stamens are the male reproductive organs of the flowers. Each Stamen has a slender stalk called filament.
Each anther lobe has two long pollen sacs so that there are four pollen sacs in an anther. They produce yellowish coloured powder of haploid pollen grains.
Carpels : Carpels form the central female reproductive organs of the flowers.
Pollination : Pollen grains from the anther are transferred by air, water, insects, and other animals, to the stigma of a pistil.
''The process of transfer of pollen grains from the anther of a flower to the stigma of same or other flower, is called as pollination''. On the basis of transfer of pollen grains to the stigma of same or other flower, pollination is of two types.
(A) Self pollination
(B) Cross pollination
Petals : Petals are coloured accessory floral organs which lie above the sepals. Petals attract insects to flowers for pollination.
Stamens : Stamens are the male reproductive organs of the flowers. Each Stamen has a slender stalk called filament.
Each anther lobe has two long pollen sacs so that there are four pollen sacs in an anther. They produce yellowish coloured powder of haploid pollen grains.
Carpels : Carpels form the central female reproductive organs of the flowers.
Pollination : Pollen grains from the anther are transferred by air, water, insects, and other animals, to the stigma of a pistil.
''The process of transfer of pollen grains from the anther of a flower to the stigma of same or other flower, is called as pollination''. On the basis of transfer of pollen grains to the stigma of same or other flower, pollination is of two types.
(A) Self pollination
(B) Cross pollination
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