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Interest Approach Have you ever seen seeds from plants, such as the African violet, jade, or aloe vera for sale in a garden center or seed catalog? No, these plants are propagated asexually, without seeds. Have any of you ever propagated any of these plants at home. If so, how did you propagate them. Student Learning Objectives Explain asexual propagation. Discuss and identify the various methods of stem cutting propagation. Discuss the methods of leaf and leaf-bud cuttings. Describe the various types of growing media used for cuttings. Describe grafting and identify three common methods. Explain layering and the difference between separation and division in plant propagation. Explain tissue culture. Terms Air layering Clone Asexual Division propagation Explants Bark graft Grafting Budding Hardwood Callus cuttings Layering Cleft graft Leaf cutting Plant Propagation Plants may be reproduced sexually (with seeds) or asexually (without seeds). In traditional agriculture, sexual reproduction is the dominant method of producing new plants. In horticulture, both sexual and asexual reproduction are common methods of producing new plants. Asexual Reporoduction Asexual propagation is the reproduction of new plants from stems, leaves, or roots of a parent plant. Portions of parent plants are used to make new plants.
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