For most bulbous crops, artificial (vegetative) propagation methods have been developed, such as scaling (lily), scooping (hyacinth), and chipping (narcissus). Because the speed of these methods is often low, introduction of newly bred cultivars (either produced by conventional breeding or by genetic modification) or of pathogen-free bulbs (produced by meristem culture) requires a long period of time. In tulip, for which no artificial propagation method exists, this can even take 20–25 yr. Micropropagation considerably shortens this period. Furthermore, because of the large number of propagation cycles in the field, conventionally produced bulbs may become easily infected. Micropropagation produces starting material that is completely or predominantly pathogen-free.
|Title of host publication||Plant Cell Culture Protocols|
|Number of pages||7|
|Publication status||Published - 1999|
|Name||Methods in molecular biology|