Annona Species Monograph.pdf - Crops for the Future

Chapter 10. Agronomy
Figure 10-4. Splice grafting: A) annona rootstock; B) scion from selected
cultivar and cut rootstock; C) wrapping of scion and rootstock
producing a humid chamber with a transparent plastic bag; D) new
grafted plant
In Ecuador, grafting of cherimoya takes place 15 months after transplanting,
when the seedling rootstocks are 30-40 cm tall and the stem diameter is 0.5
cm, and has up to 90% success (Fuentes, 1999). Four types of grafting
(splice, cleft, whip-and-tongue, and crown) and shield-budding were
evaluated by Moran et al. (1972) with scions of two diameters (0.8-1.0 cm
and 1.2-1.5 cm) on cherimoya seedling rootstocks of the same cultivar. They
found no differences in percentage take between the two sizes of rootstock,
but subsequent growth was better on the thicker rootstock. Both the budding
and the four grafting methods led to a success rate of at least 70%. The crown
grafts took more quickly, but shield-budding led to superior growth
compared to the other methods. However, splice and whip-and-tongue
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