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2022plantreproduction

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Plant ReproductionAsexual ReproductionPlant Asexual ReproductionSlide 4Slide 5Slide 6Slide 7Slide 8Slide 9Plant Sexual ReproductionSlide 11Slide 12Slide 13Pollination VectorsSlide 15Slide 16Slide 17Slide 18Slide 19Plant use of the Sun’s EnergyPlant Growth CyclesFlower StructureFruit ClassificationsSlide 24Slide 25Plant ReproductionMr. ChristensenUniversity of Winnipeg http://www.io.uwinnipeg.ca/~simmons/flower.htmPearson College http://www.pearson-college.uwc.ca/pearson/biology/asex/asex.htmTopic # 2022Asexual Reproduction•Asexual reproduction is the formation of new individuals from the cell(s) of a single parent.•It is common in plants, less so in animals.Plant Asexual Reproduction•Above ground Stems arch over and take root at the tips, forming new plants (Forsythia, Raspberry and Strawberry)•Horizontal above ground stems are called stolonsPearson College http://www.pearson-college.uwc.ca/pearson/biology/asex/asex.htmPlant Asexual Reproduction•Underground stems that serve for food storage and reproduction. Rhizomes, bulbs, corms and tubers Quackgrass RhizomesIrises and day liliesJeruasalem Artichoke, potato (tuber)Pearson College http://www.pearson-college.uwc.ca/pearson/biology/asex/asex.htmPlant Asexual ReproductionPearson College http://www.pearson-college.uwc.ca/pearson/biology/asex/asex.htmAmaryllis BulbGladiolus CormPlant Asexual Reproduction•Leaves—Mitosis along the meristems at the leaf margins produce tiny plantlets that fall off and can take up an independent existence.Pearson College http://www.pearson-college.uwc.ca/pearson/biology/asex/asex.htmPlant Asexual Reproduction•Roots—Plants can send up stems from their roots to reproduce. Dandelion, Poplar, AspenCalifornia Pictures www.californiapictures.com/gallery.htmlPlant Asexual Reproduction•Plant Propagation—Deliberate propagation by asexual means to keep particularly desirable traits. Grafting removal of a twig (scion) from a desired plant and inserting it into a notch of a cut stump (stock plant).University of Arizona http://ag.arizona.edu/pubs/garden/mg/propagation/grafting.htmlPlant Asexual Reproduction•Cuttings—Using stems, leaves or roots of plants for asexual reproduction.Pearson College http://www.pearson-college.uwc.ca/pearson/biology/asex/asex.htmPlant Sexual Reproduction•Sexual Reproduction—Sperm carried in the pollen from the male part of a flower fuses with the egg in the female part of the flower.http://www.howe.k12.ok.us/~jimaskew/bflower.htmPlant Sexual Reproduction•Pollination—Transfer of pollen from the male to the female part of the plant.•Self-Pollination—Pollen of a plant pollinates a flower of the same plant (only some plants can do this, apple trees for example cannot)University of the Western Capehttp://www.botany.uwc.ac.za/ecotree/flowers/pollination4.htmUniversity of Illinois Urbana Champaign http://www.life.uiuc.edu/plantbio/260/breedingsystems/breedingsystems.htmPlant Sexual Reproduction•Cross Pollination—Pollen of a plant pollinates another plant.•Hybrid—The offspring of genetically different plants.University of the Western Capehttp://www.botany.uwc.ac.za/ecotree/flowers/pollination4.htmPollination Vectors•Wind (grasses)•Water (aquatic plants)•Insects (bees, beetles, butterflies and wasps)•Mammals (bats/rodents)•BirdsUniversity of the Western Capehttp://www.botany.uwc.ac.za/ecotree/flowers/pollination4.htmPlant Sexual Reproduction•Complete Flower—A flower having all floral structures, including the calyx (sepals, corolla (petals), stamen (anthers and filaments) and pistil (stigma, style and ovary). (Rose)Texas Technological University http://www.pssc.ttu.edu/pss1321/Web%20topics/cpa2.htmPlant Sexual Reproduction•Incomplete Flower—A flower which lacks one or more floral structures•Perfect Flower—A flower which has male and female floral structures in the same flower. (Rose, Apple, Tomato and Wheat)Texas Technological University http://www.pssc.ttu.edu/pss1321/Web%20topics/cpa2.htmPlant Sexual Reproduction•Imperfect Flower—A flower which has male and female floral structures in separate flowers. (Spruce, Ash and Maples•Monoecious Plant—A plant species having separate male and female flowers on the same plant.(example corn, cucumber, Birch)•Dioecious Plant—A plant species having male and female flowers that are on separate plants. (example buffalograss, Hollies, Yews, Ash, Asparagus and Maple.)Plant Sexual Reproductionhttp://www.pumpkinnook.com/how to/pollen.htmMale and Female flowers on a Pumpkin plantPlant use of the Sun’s Energy 1% Photosynthesis 2% Heat the mass of the plant 6% Heat the air 10% Reflected 43% Converted to heat and radiated 48% Used to evaporate waterPlant Growth CyclesFlower StructureFruit


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