Annona Species Monograph.pdf - Crops for the Future

Chapter 9. Genetic Improvement
Table 9.1. Main characteristics of cherimoya, soursop and sugar apple
ideotypes (adult plants).
Characteristic Cherimoya Soursop Sugar Apple
Plant
- Vegetative vigour Medium to low Medium to low Medium to low
- Reproductive vigour
(yield)
High ( > 30 kg/tree/year) High ( > 60
kg/tree/year)
High ( > 20
kg/tree/year)
- Bearing Regular Regular Regular
- Rootstock/Scion Com-
High High High
patibility
- Resistance
Climate (Temperature)
Pest and Disease
High Temperature (> 22
°C)
High
Abundant ( >150 flowers/tree)
Low Temperature (<
18 °C)
High
Abundant ( >100
flowers/tree)
Low Temperature (<
18 °C)
High
Abundant ( >180
flowers/tree)
- Flower Number
- Pollen Fertility (20 High (> 76%) High (> 76%) High (> 76%)
°C)
- Harvest Out-of-Season Throughout year Out-of-Season
Fruit
- Size/Weight
For Industry
For Fresh Consumption
Large / > 650 g
Medium / 300-600 g
Large / > 2,5 kg
Small / 0,8-2,5 kg
Large / > 400 g
Medium / 300 - 400 g
- Shape Heart Conical Rounded to Heart
- Fruit Set (naturally) High (> 27%) High (> 26%) High (> 25%)
- Skin Smooth (Impressa) Short protuberances Tuberculate
- Pulp Sweet, fibreless Sub-acid, low fibre Sweet, low fibre
- Flavour Delicate Sub-acid flavour Pleasant acidulous
- Seed number/100g of
pulp
- Shelf Life (15° to
30°C)
- Transport resistance High (pulp pressure > 1.5
kg/cm2)
Low or Absent / < 6 seeds Low / 10-30 seeds Low or Absent / < 10
seeds
Long ( > 10 days) Long ( > 5 days) Long ( > 5 days)
High (not found)
High (not found)
Sources: Anderson and Richardson (1990); George and Nissen (1987); Guardiazabal
and Cano (1999); Higuchi et al. (1998); Nakasone and Paull (1998);
Pinto et al. (2001); Scheldeman and Van Damme (1999); Viteri et al. (1999).
60