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Plant Reproduction

University of Winnipeg http://www.io.uwinnipeg.ca/~simmons/flower.htm. Plant Reproduction. Topic # 2022. Mr. Christensen. Pearson College http://www.pearson-college.uwc.ca/pearson/biology/asex/asex.htm. Asexual Reproduction.

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Plant Reproduction

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  1. University of Winnipeg http://www.io.uwinnipeg.ca/~simmons/flower.htm Plant Reproduction Topic # 2022 Mr. Christensen Pearson College http://www.pearson-college.uwc.ca/pearson/biology/asex/asex.htm

  2. Asexual 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.

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

  4. Plant Asexual Reproduction • Underground stems that serve for food storage and reproduction. Rhizomes, bulbs, corms and tubers Jeruasalem Artichoke, potato (tuber) Quackgrass Rhizomes Irises and day lilies Pearson College http://www.pearson-college.uwc.ca/pearson/biology/asex/asex.htm

  5. Plant Asexual Reproduction Amaryllis Bulb Gladiolus Corm Pearson College http://www.pearson-college.uwc.ca/pearson/biology/asex/asex.htm

  6. Plant 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.htm

  7. Plant Asexual Reproduction • Roots—Plants can send up stems from their roots to reproduce. Dandelion, Poplar, Aspen California Pictures www.californiapictures.com/gallery.html

  8. Plant 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.html

  9. Plant 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.htm

  10. Plant 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.htm

  11. Plant 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 Cape http://www.botany.uwc.ac.za/ecotree/flowers/pollination4.htm

  12. University of Illinois Urbana Champaign http://www.life.uiuc.edu/plantbio/260/breedingsystems/breedingsystems.htm

  13. Plant Sexual Reproduction • Cross Pollination—Pollen of a plant pollinates another plant. • Hybrid—The offspring of genetically different plants. University of the Western Cape http://www.botany.uwc.ac.za/ecotree/flowers/pollination4.htm

  14. Pollination Vectors • Wind (grasses) • Water (aquatic plants) • Insects (bees, beetles, butterflies and wasps) • Mammals (bats/rodents) • Birds University of the Western Cape http://www.botany.uwc.ac.za/ecotree/flowers/pollination4.htm

  15. Plant 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.htm

  16. Plant 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.htm

  17. Plant 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.)

  18. Plant Sexual Reproduction Male and Female flowers on a Pumpkin plant http://www.pumpkinnook.com/how to/pollen.htm

  19. Plant 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 water

  20. Plant Growth Cycles

  21. Flower Structure

  22. Fruit Classifications

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