Difference between revisions of "Tropaeolum tuberosum"

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|species=tuberosum
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|common_name=Mashua
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|habit=herbaceous
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The '''mashua''' (see below for other names) is a [[perennial plant]] grown in the [[Andes]] for its edible [[tuber]], which is eaten as a [[root vegetable]]. It is a major food source there. The tuber is rather peppery in flavor<ref>[http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2007/11/24/HOFKT0IEM.DTL&hw=perennially&sc=237&sn=006 10 perennial veggies to grow, San Francisco Gate]</ref> when raw, but this quality disappears when cooked. It is related to garden nasturtiums, being of the ''[[Tropaeolum]]'' genus, not to be confused with the genus ''[[Nasturtium]]''.
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Tropaeolum tuberosum, Ruiz & Pav. Root producing a pyriform irregular tuber 2-3 in. long: st. climbing, glabrous: lvs. peltate near the base, cordate-orbicular, 5-lobed nearly or quite to the middle: fls. rather small, the calyx and long spur red, the petals yellow, small and nearly erect and little exceeding the calyx. Peru and Bolivia.—Plant stands some frost. In Peru, the tubers are eaten, and the plant is sometimes cult. in Eu. for the tubers. It appears in the American catalogues of European dealers. The tubers are usually boiled, or said to be eaten in a partially dried condition.
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Tropaeolum tuberosum, Ruiz & Pav. Root producing a pyriform irregular tuber 2-3 in. long: st. climbing, glabrous: lvs. peltate near the base, cordate-orbicular, 5-lobed nearly or quite to the middle: fls. rather small, the calyx and long spur red, the petals yellow, small and nearly erect and little exceeding the calyx. Peru and Bolivia. B.M. 3714. F.S. 5:452. P.M. 5:49. R.H. 1853:341 (tubers). J.H. III. 30: 385. H.U. 1, p. 4.—Plant stands some frost. In Peru, the tubers are eaten, and the plant is sometimes cult. in Eu. for the tubers. It appears in the American catalogues of European dealers. The tubers are usually boiled, or said to be eaten in a partially dried condition.
 
 
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==Cultivation==
 
==Cultivation==
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The plant grows vigorously even in marginal [[soil]]s and in the presence of [[weed]]s.  It is also well-adapted to high-altitude [[subsistence agriculture]], and gives high yields; 30 [[tonne]]s per [[hectare]] are yielded at a height of 3000 metres, but up to 70 tons per hectare have been produced under research conditions<ref name="siu">[http://www.siu.edu/~ebl/leaflets/mashua.htm Mashua Ethnobotanical Leaflet, Southern Illinois University]</ref>.
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Its extraordinary resistance to [[insect]], [[nematode]], and [[bacteria]]l pests is attributed to high levels of [[isothiocyanate]]s.  In Colombia, it is planted as a [[companion planting|companion crop]] to repel pests in [[potato]] fields.
  
 
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Latest revision as of 15:00, 4 May 2010


Tropaeolum tuberosum3.jpg


Plant Characteristics
Habit   herbaceous

Height: ⇕ 10 ft"ft" can not be assigned to a declared number type with value 10.
Width: ⇔ 10 ft"ft" can not be assigned to a declared number type with value 10.
Lifespan: ⌛ perennial
Bloom: ❀ early summer, mid summer, late summer
Cultivation
Exposure: ☼ sun, part-sun
Features: ✓ flowers, edible
USDA Zones: 8 to 10
Flower features: ❀ red, orange, yellow, pink
Scientific Names

Tropaeolaceae >

Tropaeolum >

tuberosum >


The mashua (see below for other names) is a perennial plant grown in the Andes for its edible tuber, which is eaten as a root vegetable. It is a major food source there. The tuber is rather peppery in flavor[1] when raw, but this quality disappears when cooked. It is related to garden nasturtiums, being of the Tropaeolum genus, not to be confused with the genus Nasturtium.


Read about Tropaeolum tuberosum in the Standard Cyclopedia of Horticulture 

Tropaeolum tuberosum, Ruiz & Pav. Root producing a pyriform irregular tuber 2-3 in. long: st. climbing, glabrous: lvs. peltate near the base, cordate-orbicular, 5-lobed nearly or quite to the middle: fls. rather small, the calyx and long spur red, the petals yellow, small and nearly erect and little exceeding the calyx. Peru and Bolivia.—Plant stands some frost. In Peru, the tubers are eaten, and the plant is sometimes cult. in Eu. for the tubers. It appears in the American catalogues of European dealers. The tubers are usually boiled, or said to be eaten in a partially dried condition. CH


The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.


Cultivation

The plant grows vigorously even in marginal soils and in the presence of weeds. It is also well-adapted to high-altitude subsistence agriculture, and gives high yields; 30 tonnes per hectare are yielded at a height of 3000 metres, but up to 70 tons per hectare have been produced under research conditions[2].

Its extraordinary resistance to insect, nematode, and bacterial pests is attributed to high levels of isothiocyanates. In Colombia, it is planted as a companion crop to repel pests in potato fields.

Propagation

Do you have propagation info on this plant? Edit this section!

Pests and diseases

Do you have pest and disease info on this plant? Edit this section!

Species

Gallery

  • Peru Oca y mashua.jpg

  • photo 1

  • photo 2

  • photo 3

References

External links


  1. ↑ 10 perennial veggies to grow, San Francisco Gate
  2. ↑ Mashua Ethnobotanical Leaflet, Southern Illinois University
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