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Babaco

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Babaco
Babaco fruit being sold as food
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Brassicales
Family: Caricaceae
Genus: Vasconcellea
Species:
V. × heilbornii
Binomial name
Vasconcellea × heilbornii

The babaco (Vasconcellea × heilbornii; syn. Carica pentagona), is a hybrid cultivar in the genus Vasconcellea from Ecuador. It is a hybrid between Vasconcellea cundinamarcensis (syn. Carica pubescens, "mountain papaya".), and Vasconcellea stipulata (syn. Carica stipulata, "toronche".) although Vasconcellea weberbaueri has also been mentioned as a contributor to the hybrid.[1][2]

Growth

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It can grow at high altitudes (over 2,000 m), and is the most cold-tolerant plant in the genus Vasconcellea. The babaco is classified as a herbaceous shrub like Carica papaya (papaya) but unlike papaya it produces only female flowers. The babaco plant can produce from 30–60 fruits annually, and has an average life span of about eight years. The small plant is better suited as a container specimen than its cousin the papaya, which needs constant moisture and high temperatures to survive.

The plant is easy to cultivate under greenhouse conditions (Kempler et al., 1993). Propagation of the plant is achieved by rooting axillary shoots. The opening of axillary buds and subsequent shoot growth is stimulated by removing the apical meristem. The shoots are cut at 15–25 cm long and only the apical leaf is kept. The basal area of the stem is mildly injured and dipped in 0.4% IBA rooting powder and planted into suitable rooting media such as peat:perlite:sand and placed under intermittent mist. The cutting can be ready for transplanting within 3 weeks. Top-prunings (to reduce the height of the plant) may also be used as giant cuttings, up to 1.5 meters long, if protected against drying out.

In contrast to the tropical papaya, babaco require a cool subtropical climate. Recommended greenhouse minimum temperature of 10 °C at night, 12 °C during the day, and 18 °C for fruit to ripen quickly and uniformly. Excessively low temperatures cause fruit to mature with rough, pitted skin.

The flowering habit is indeterminate. Under greenhouse conditions, plant growth during winter month (October- March at 49°N) is slow, and flowers senesce and fail to set fruit (Kempler et al., 1993). In Ecuador, the trees begin cropping 10 months after planting and continue bearing for 6 months, producing about 40 fruit/tree with each weighing about 1-1.5 kg, in the greenhouse we produced about 32 kg fruit per square meter in 16 months when planted 0.8 plants per sq. meter, and 25 kg sq. meter after 12 months space at 3 plants sq. meter. Because of the heavy fruit load a support system for the plants was required. Small fruit size can be achieved by growing plants at high densities. Fruit begins to mature with gradual color change from green to yellow and, if harvest is delayed, the fruit stalk will abscise and fruit will drop and bruise. The delicate-skinned fruit is harvested with pruners with a short stalk and handled carefully. In northern climate, ripening begins in November (March planting), and continues until June. During this period new flowers are set (April–September) and the second crop starts to ripen in November, the plant is cut above the last-formed fruit as flowers senesce in October. After the end of the second season, cropping plants can be cut and rejuvenated from the base or replaced with new plants.

Cultural importance

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Babaco sweet fruit consumption is of considerable cultural importance in the mountainous regions of Andean countries, specially in Ecuador. The fruit is commonly eaten in the Ecuadorian Sierra as fruit marmalade, boiled with sugar to make dulce de babaco, in juice, or as flavoring of traditional sweets. Boiled babaco texture has been described close to that of boiled apple. The fruit is used mainly in confections, pastry and juices.[1]

Characteristics

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It is a small, unbranched or sparsely branched tree reaching 5–8 m tall. The fruit differs from the related papaya (C. papaya) in being narrower, typically less than 10 cm in diameter. The babaco fruit is seedless and the smooth skin can be eaten, and is said to have tastes of strawberry, papaya, kiwi and pineapple. The fruit is pentagonal in shape, therefore giving it the scientific name of Carica pentagona. The fruit is not especially acidic, but contains papain, a proteolytic enzyme, which may cause mild irritation or "burns".

Like the papaya, the babaco is grown for its edible fruit and for its fruit juice. Cultivation away from its native range has been successful as far south as New Zealand, and as far north as California, some regions of Britain, Guernsey, Channel Islands, and somewhat also in Italy (mostly Sicily and Calabria).

References

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  1. ^ a b Aguirre-Rodríguez, Adriana; Duarte-Casar, Rodrigo; Rojas-Le-Fort, Marlene; Romero-Benavides, Juan Carlos (2024-09-01). "Food uses, functional activities, and bioactive compounds of three Ecuadorian Vasconcellea fruits: Bibliometric analysis and review". Journal of Agriculture and Food Research. 17: 101244. doi:10.1016/j.jafr.2024.101244. ISSN 2666-1543.
  2. ^ VAN DROOGENBROECK, B.; KYNDT, T.; ROMEIJN-PEETERS, E.; VAN THUYNE, W.; GOETGHEBEUR, P.; ROMERO-MOTOCHI, J. P.; GHEYSEN, G. (2006-02-24). "Evidence of Natural Hybridization and Introgression between Vasconcellea Species (Caricaceae) from Southern Ecuador Revealed by Chloroplast, Mitochondrial and Nuclear DNA Markers". Annals of Botany. 97 (5): 793–805. doi:10.1093/aob/mcl038. ISSN 1095-8290. PMC 2803430. PMID 16500954.
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