Winter squash

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An assortment of winter squashes Squashes.jpg
An assortment of winter squashes

Winter squash is an annual fruit representing several squash species within the genus Cucurbita . Late-growing, less symmetrical, odd-shaped, rough or warty varieties, small to medium in size, but with long-keeping qualities and hard rinds, are usually called winter squash. [1] They differ from summer squash in that they are harvested and eaten in the mature stage when their seeds within have matured fully and their skin has hardened into a tough rind. At this stage, most varieties of this vegetable can be stored for use during the winter. Winter squash is generally cooked before being eaten, and the skin or rind is not usually eaten as it is with summer squash. [2]

Contents

Varieties

Butternut squash is a variety of winter squash Cucurbita moschata Butternut 2012 G2.jpg
Butternut squash is a variety of winter squash
Calabaza, a winter squash common in Cuba, Florida, Puerto Rico, and the Philippines Bunga nin kalabasa.jpg
Calabaza, a winter squash common in Cuba, Florida, Puerto Rico, and the Philippines

Four species in the genus Cucurbita yield cultivars that are brown as winter squashes: C. argyrosperma , C. maxima , C. moschata , and C. pepo .

Cultivars of winter squash that are round and orange are called pumpkins. In New Zealand and Australian English, the term pumpkin generally refers to the broader category called winter squash elsewhere. [3]

Planting and harvesting

Squash is a frost-tender plant meaning that the seeds do not germinate in cold soil. Winter squash seeds germinate best when the soil temperature is 21 to 35 °C (70 to 95 °F), with the warmer end of the range being optimal. [4] It is harvested whenever the fruit has turned a deep, solid color and the skin is hard. Most winter squash is harvested in September or October in the Northern Hemisphere, before the danger of heavy frosts.[ citation needed ]

Although winter squashes are grown in many regions, they are relatively economically unimportant, with few exceptions. [1] They are grown extensively in tropical America, Japan, Northern Italy, and certain areas of the United States. [1] The calabazas of the West Indies and the forms grown by the people of Mexico and Central America are not uniform, pure varieties but extremely variable in size, shape, and color. [1] Since these species are normally cross-pollinated, it is now difficult to keep a variety pure. [1]

Nutritional value

Winter squash, all varieties, raw
Nutritional value per 100 g (3.5 oz)
Energy 143 kJ (34 kcal)
8.59g
Sugars 2.2 g
Dietary fiber 1.5g
Fat
0.13 g
0.95 g
Vitamins and minerals
Vitamins Quantity
%DV
Vitamin A equiv.
8%
68 μg
8%
820 μg
38 μg
Thiamine (B1)
3%
0.04 mg
Riboflavin (B2)
5%
0.062 mg
Niacin (B3)
3%
0.5 mg
Pantothenic acid (B5)
4%
0.188 mg
Vitamin B6
9%
0.156 mg
Folate (B9)
6%
24 μg
Vitamin C
14%
12.3 mg
Minerals Quantity
%DV
Calcium
2%
28 mg
Iron
3%
0.58 mg
Magnesium
4%
15 mg
Manganese
7%
0.164 mg
Phosphorus
2%
24 mg
Potassium
12%
350 mg
Other constituentsQuantity
Water90 g

Percentages estimated using US recommendations for adults, [5] except for potassium, which is estimated based on expert recommendation from the National Academies. [6]

Raw winter squash (such as acorn or butternut squash) is 90% water, 9% carbohydrates, 1% protein. It contains negligible fat (table), except in the oil-rich seeds. In a 100 gram reference amount, it supplies 34 calories and is a moderate source (10-19% of the Daily Value, DV) of vitamin C (15% DV) and vitamin B6 (12% DV), with no other micronutrients in significant content (table). It is also a source of the provitamin A carotenoid, beta-carotene. [7]

See also

Related Research Articles

<i>Cucurbita</i> Genus of herbaceous plants

Cucurbita is a genus of herbaceous fruits in the gourd family, Cucurbitaceae, native to the Andes and Mesoamerica. Five edible species are grown and consumed for their flesh and seeds. They are variously known as squash, pumpkin, or gourd, depending on species, variety, and local parlance. Other kinds of gourd, also called bottle-gourds, are native to Africa and belong to the genus Lagenaria, which is in the same family and subfamily as Cucurbita, but in a different tribe, their young fruits are eaten much like those of the Cucurbita species.

<span class="mw-page-title-main">Spaghetti squash</span> Group of cultivars

Spaghetti squash or vegetable spaghetti is a group of cultivars of Cucurbita pepo subsp. pepo. They are available in a variety of shapes, sizes, and colours, including ivory, yellow and orange, with orange having the highest amount of carotene. Its center contains many large seeds. When raw, the flesh is solid and similar to other raw squash. When cooked, the meat of the fruit falls away from the flesh in ribbons or strands that look like and can be used as an alternative to spaghetti.

<span class="mw-page-title-main">Acorn squash</span> Type of squash

Acorn squash, also called pepper squash or Des Moines squash, is a winter squash with distinctive longitudinal ridges on its exterior and sweet, yellow-orange flesh inside. Although considered a winter squash, acorn squash belongs to the same species as all summer squashes.

<i>Cucurbita pepo</i> Species of flowering plant that yields varieties of squash and pumpkin

Cucurbita pepo is a cultivated plant of the genus Cucurbita. It yields varieties of winter squash and pumpkin, but the most widespread varieties belong to the subspecies Cucurbita pepo subsp. pepo, called summer squash.

<span class="mw-page-title-main">Zucchini</span> Edible summer squash

The zucchini, courgette or baby marrow is a summer squash, a vining herbaceous plant whose fruit are harvested when their immature seeds and epicarp (rind) are still soft and edible. It is closely related, but not identical, to the marrow; its fruit may be called marrow when mature.

<span class="mw-page-title-main">Calabaza</span> Type of squash

Calabaza is the generic name in the Spanish language for any type of winter squash. Within an English-language context it specifically refers to the West Indian pumpkin, a winter squash typically grown in the West Indies, tropical America, and the Philippines. Calabaza is the common name for Cucurbita moschata in Cuba, Florida, Puerto Rico, Mexico and the Philippines. C. moschata is also known as auyama in Colombia, the Dominican Republic and Venezuela; ayote in Central America; zapallo in certain countries of South America; and "pumpkin", "squash", or "calabash" in English-speaking islands.

<span class="mw-page-title-main">Kabocha</span> Type of winter squash

Kabocha is a type of winter squash, a Japanese variety of the species Cucurbita maxima. It is also called kabocha squash or Japanese pumpkin in North America. In Japan, "kabocha" may refer to either this squash, to the Western pumpkin, or indeed to other squashes. In Australia, "Japanese pumpkin" is a synonym of Kent pumpkin, a variety of winter squash.

Straightneck squash is a cultivated variety of Cucurbita pepo grown as a type of summer squash that is usually yellow-colored. It is also known as yellow squash, though other squashes, such as crookneck squash, may also be known by that name. It has mildly sweet and watery flesh, and thin tender skins that can be left on the fruit for many types of recipes. It was almost certainly domesticated in the eastern United States, although other variants of the same species were domesticated in Mesoamerica. This squash grows on vined plants reaching 60–90 cm (2.0–3.0 ft) in height that thrive in mild weather. It is well known as an item in American cooking where it is fried, microwaved, steamed, boiled, or baked. It is often used in recipes interchangeably with zucchini. A good yellow summer squash will be small and firm with tender skin free of blemishes and bruising. It is available all year long in some regions, but is at its peak from early through late summer. One similar inedible C. pepo variety is C. pepo var. ovifera.

<span class="mw-page-title-main">Pumpkin seed</span> Seeds of pumpkin and similar squashes

A pumpkin seed, also known as a pepita, is the edible seed of a pumpkin or certain other cultivars of squash. The seeds are typically flat and oval with one axis of symmetry, have a white outer husk, and are light green after the husk is removed. Some pumpkin cultivars are huskless and are grown only for their edible seed. The seeds are nutrient- and calorie-rich, with an especially high content of fat, protein, dietary fiber, and numerous micronutrients. Pumpkin seed can refer either to the hulled kernel or unhulled whole seed and most commonly refers to the roasted end product used as a snack.

<span class="mw-page-title-main">Butternut squash</span> Cucurbita moschata; type of winter squash

Butternut squash, known in Australia and New Zealand as butternut pumpkin or gramma, is a type of winter squash that grows on a vine. It has a sweet, nutty taste similar to that of a pumpkin. It has tan-yellow skin and orange fleshy pulp with a compartment of seeds in the blossom end. When ripening, the flesh turns increasingly deep orange due to its rich content of beta-carotene, a provitamin A compound.

<i>Cucurbita moschata</i> Species of flowering plant

Cucurbita moschata is a species originating in either Central America or northern South America. It includes cultivars known as squash or pumpkin. C. moschata cultivars are generally more tolerant of hot, humid weather than cultivars of C. maxima or C. pepo. They also generally display a greater resistance to disease and insects, especially to the squash vine borer. Commercially made pumpkin pie mix is most often made from varieties of C. moschata. The ancestral species of the genus Cucurbita were present in the Americas before the arrival of humans. No species within the genus is fully genetically isolated from all the other species. C. moschata can be hybridized with all other species. It has been suggested that this shows that the species of Cucurbita have diversified more recently than those of related genera such as Cucumis and Citrullus.

<span class="mw-page-title-main">Crookneck squash</span> Cultivar of Cucurbita pepo

Crookneck squash, also known as yellow squash, is a cultivar of Cucurbita pepo, the species that also includes some pumpkins and most other summer squashes. The plants are bushy and do not spread like the plants of winter squash and pumpkin. Most often used as a summer squash, it is characterized by its yellow skin and sweet yellow flesh, as well as its distinctive curved stem-end or "crooked neck". It should not be confused with crookneck cultivars of Cucurbita moschata, such as the winter squash 'Golden Cushaw', or the vining summer squash 'Tromboncino'. Its name distinguishes it from another similar-looking variety of C. pepo, the straightneck squash, which is also usually yellow. There is one similar non-edible C. pepo variety: C. pepo var. ovifera.

Summer squash are squashes that are harvested when immature, while the rind is still tender and edible. Most summer squashes are varieties of Cucurbita pepo, though some are C. moschata. Most summer squash have a bushy growth habit, unlike the rambling vines of many winter squashes. The term "summer squash" refers to the early harvest period and short storage life of these squashes, unlike that of winter squashes.

<span class="mw-page-title-main">Delicata squash</span> Variety of winter squash

Delicata squash is a variety of winter squash with cylindrical fruits that are cream-coloured and striped in green or orange. As its name suggests, it has characteristically a delicate rind. It is also known as peanut squash, Bohemian squash, or sweet potato squash. It is a very sweet variety with a thin, edible skin and is typically cut into half rounds and roasted. It is a cultivar of the species Cucurbita pepo, which also includes the summer squash varieties pattypan squash, zucchini, and yellow crookneck squash, as well as winter squash varieties including acorn squash, spaghetti squash, and most pumpkins used as Jack-o-lanterns.

<i>Cucurbita maxima</i> Species of squash

Cucurbita maxima, one of at least five species of cultivated squash, is one of the most diverse domesticated species. This species originated in South America from the wild subspecies Cucurbita maxima subsp. andreana over 4,000 years ago. Cucurbita maxima, known for modern varieties as Hubbard, Delicious, Marblehead, Boston Marrow, and Turks Turban, originated in northern Argentina near the Andes or in certain Andean valleys. Secondary centers of diversity include India, Bangladesh, Myanmar, and the southern Appalachians.

<span class="mw-page-title-main">Pumpkin</span> Category of culinary winter Cucurbita squashes

A pumpkin is a cultivated winter squash in the genus Cucurbita. The term is most commonly applied to round, orange-colored squash varieties, but does not possess a scientific definition. It may be used in reference to many different squashes of varied appearance and belonging to multiple species in the Cucurbita genus.

<span class="mw-page-title-main">Red kuri squash</span> Type of winter squash

Red kuri squash is a thin skinned orange colored winter squash, a cultivated variety of the species Cucurbita maxima. It looks like a small pumpkin without the ridges. It belongs to the Hubbard squash group.

<span class="mw-page-title-main">Tromboncino (squash)</span> Cultivar of Cucurbita moschata.

Tromboncino, also known as zucchetta, is a type of squash most often used as a summer squash.

<span class="mw-page-title-main">Connecticut field pumpkin</span> Type of pumpkin

Connecticut field pumpkins are a type of pumpkin first attested in the 16th century. They are one of the oldest varieties of pumpkin in existence and are known as an heirloom plant. One of the most popular Halloween pumpkins, Connecticut field pumpkins are commonly used for autumn decorations and jack-o'-lanterns; a strain of Connecticut field pumpkins have been described as "the original commercial jack-o'-lantern pumpkin". Due to the variety's appearance and growth process, it is considered to be well-suited for ornamental use. It also has culinary uses, particularly in canning, and was used for medicinal purposes by Native Americans in the United States prior to European contact.

References

  1. 1 2 3 4 5 Victor E. Boswell and Else Bostelmann. "Our Vegetable Travelers." The National Geographic Magazine.96.2: August 1949.
  2. "Winter Squash". University of Illinois Extension. Retrieved September 15, 2013.
  3. Ferriol, María; Picó, Belén (2007). "3". Handbook of Plant Breeding: Vegetables I. New York: Springer. p. 317. ISBN   978-0-387-72291-7. The common terms "pumpkin", "squash", "gourd", "cushaw", "ayote", "zapallo", "calabaza", etc. are often applied indiscriminately to different cultivated species of the New World genus Cucurbita L. (Cucurbitaceae): C. pepo L., C.  maxima Duchesne, C. moschata Duchesne, C. argyrosperma C. Huber and C. ficifolia Bouché.
  4. Nonnecke, Ib Libner (1989). Vegetable Production. New York: Van Nostrand Reinhold. p.  534. ISBN   0-442-26721-5.
  5. United States Food and Drug Administration (2024). "Daily Value on the Nutrition and Supplement Facts Labels". FDA. Archived from the original on 2024-03-27. Retrieved 2024-03-28.
  6. National Academies of Sciences, Engineering, and Medicine; Health and Medicine Division; Food and Nutrition Board; Committee to Review the Dietary Reference Intakes for Sodium and Potassium (2019). Oria, Maria; Harrison, Meghan; Stallings, Virginia A. (eds.). Dietary Reference Intakes for Sodium and Potassium. The National Academies Collection: Reports funded by National Institutes of Health. Washington, DC: National Academies Press (US). ISBN   978-0-309-48834-1. PMID   30844154. Archived from the original on 2024-05-09. Retrieved 2024-06-21.
  7. "Vitamin A". Micronutrient Information Center, Linus Pauling Institute, Oregon State University, Corvallis. 1 July 2016. Retrieved 21 December 2021.