Annona Species Monograph.pdf - Crops for the Future

Chapter 10. Agronomy
Figure 10-6. Steps of the topworking technique used to regenerate an
unproductive canopy of an annona tree
A reliable in vitro method for propagation of Annona species would be of
considerable benefit to the annona industry because it would allow rapid
clonal propagation of superior yielding and disease resistant varieties, as well
as enabling clonal multiplication of superior rootstock material in areas
where grafted Annona species are required (Rasai et al., 1994). In addition,
micro-propagation would facilitate the exchanging of germplasm materials
among research centres. However, rapid multiplication with sustained
proliferation and in vitro rooting has always proved to be difficult.
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