plant reproduction by omar al awad grade 7e. asexual reproduction asexual reproduction is the...

Plant ReproductionPlant Reproduction

By Omar Al By Omar Al Awad Grade Awad Grade 7E7E

Asexual ReproductionAsexual Reproduction

Asexual reproductionAsexual reproduction is the is the fformation of ormation of new individuals from the cell of a single new individuals from the cell of a single parent.parent.

It is common in plants, less so in animals.It is common in plants, less so in animals.

Plant Asexual Plant Asexual ReproductionReproduction

Above ground StemsAbove ground Stems arch over and take arch over and take root at the tips, forming new plants (Forsythia, root at the tips, forming new plants (Forsythia, Raspberry and Strawberry)Raspberry and Strawberry)

Horizontal above ground stems are called Horizontal above ground stems are called stolonsstolons

Pearson College http://www.pearson-college.uwc.ca/pearson/biology/asex/asex.htm

Plant Asexual Plant Asexual ReproductionReproduction

Underground stemsUnderground stems that serve for food that serve for food storage and reproduction. Rhizomes, bulbs, storage and reproduction. Rhizomes, bulbs, corms and tubers corms and tubers

Quackgrass RhizomesIrises and day lilies

Jeruasalem Artichoke, potato (tuber)

Plant Asexual Plant Asexual ReproductionReproduction

Amaryllis BulbGladiolus Corm

Plant Asexual Plant Asexual ReproductionReproduction

LeavesLeaves—Mitosis along the meristems at the —Mitosis along the meristems at the leaf margins produce tiny plantlets that fall leaf margins produce tiny plantlets that fall off and can take up an independent off and can take up an independent existence.existence.

Plant Asexual Plant Asexual ReproductionReproduction

RootsRoots—Plants can send up stems from their —Plants can send up stems from their roots to reproduce. Dandelion, Poplar, Aspenroots to reproduce. Dandelion, Poplar, Aspen

Plant Asexual Plant Asexual ReproductionReproduction

Plant PropagationPlant Propagation—Deliberate —Deliberate propagation by asexual means to propagation by asexual means to keep particularly desirable traits. keep particularly desirable traits. Grafting Grafting removal of a twig (scion) removal of a twig (scion) from a desired plant and inserting from a desired plant and inserting it into a notch of a cut stump it into a notch of a cut stump (stock plant).(stock plant).

Plant Asexual Plant Asexual ReproductionReproduction

Cuttings—Cuttings—Using stems, leaves or roots of Using stems, leaves or roots of plants for asexual reproduction.plants for asexual reproduction.

BibliographyBibliography 1. 1. http://plants.pppst.com/seeds.html

2. 2. http://www.slideshare.net/gmanb5/asexual-reproduction

3. 3. http://www.biology4kids.com/files/plants_reproduction.html

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