Asexual Plant Reproduction

• Reproduction is the biological process by which new individual organisms – “offspring” – are produced from their parent organisms
• Plant do this in 2 ways, asexually and sexually

  Reproduction
• is a type of reproduction that produces identical offspring from a single parent plant

  Asexual Reproduction
• The two types of asexual reproduction are Natural Vegetative Reproduction and Artificial Propagation Methods.
• Plant reproduction from its vegetative parts or specialized reproductive structures

  Natural vegetative reproduction
• The different types of natural vegetative reproduction are tuber, runner, corm, rhizome, and bulb.
• New shoots arise from axillary bud on swollen, short, fleshly, underground stem.

  Tuber
• Potato is an example of tuber.
• New plant arise at nodes of above ground horizontal stem

  Runner
• Bermuda grass and strawberry plants are examples of runner.
• New plant arise from very short, thickened, underground stem with thin, scaly leaves

  Corm
• Gladiolus is an example of corm.
• New plant arise at nodes of underground horizontal root-like stem

  Rhizome
• Sugarcane and ginger are examples of rhizome.
• New bulbs arise from axillary bud on very short stem with thick fleshy leaves (only in monocots)

  Bulb
• Onion and garlic are examples of a bulb.
• Asexual methods are also practiced with a little help from humans

  Artificial propagation methods
• Leaves or pieces of stems or roots are cut from one plant, planted in soil and used to grow new individual

  Cutting
• Ornamental trees and shrubs (grapes, apples) are examples of cutting
• Small stems from one plant are attached to larger stems or roots of another plant

  Budding or grafting
• Some fruit and nut tress (oranges) are example of grafting.
• Pieces of tissues from one plant are placed on a sterile medium and used to grow new individuals in mass numbers

  Tissue culture
• Orchids, potatoes, and many house plants are examples of tissue culture.
• The different types of artificial propagation methods are cutting, budding or grafting, and tissue culture.