Green bean
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Green beans are young, unripe fruits of various cultivars of the common bean (Phaseolus vulgaris),<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref name="UIL">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> although immature or young pods of the runner bean (Phaseolus coccineus), yardlong bean (Vigna unguiculata subsp. sesquipedalis), and hyacinth bean (Lablab purpureus) are used in a similar way.<ref name="UMN">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> Green beans are known by many common names, including French beans,<ref name="FGtP">Template:Cite book</ref> string beans (although most modern varieties are "stringless"),Template:R and snap beansTemplate:R or simply "snaps."<ref>Singh BK and Singh B. 2015. Breeding perspectives of snap bean (Phaseolus vulgaris L.). Vegetable Science 42(1): 1-17.</ref><ref>Template:Cite book</ref> In the Philippines, they are also known as "Baguio beans" or "{{#invoke:Lang|lang}}" to distinguish them from yardlong beans.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
They are distinguished from the many other varieties of beans in that green beans are harvested and consumed with their enclosing pods before the bean seeds inside have fully matured. An analogous practice is the harvest and consumption of unripened pea pods, as is done with snow peas or sugar snap peas.
UsesEdit
As common food in many countries, green beans are sold fresh, canned, and frozen. They can be eaten raw or steamed, boiled, stir-fried, or baked. They are commonly cooked in other dishes, such as soups, stews, and casseroles. Green beans can be pickled, similarly to cucumbers.
A dish with green beans common throughout the northern US, particularly at Thanksgiving, is green bean casserole, a dish of green beans, cream of mushroom soup, and French-fried onions.<ref name="TNBR">Template:Cite book</ref>
NutritionEdit
Template:Nutritionalvalue Raw green beans are 90% water, 7% carbohydrates, 2% protein, and contain negligible fat (table). In a Template:Convert reference amount, raw green beans supply Template:Convert of food energy and are a moderate source (range 10–19% of the Daily Value) of vitamin C, vitamin K, vitamin B6, and manganese, while other micronutrients are in low supply (table).
DomesticationEdit
The green bean (Phaseolus vulgaris) originated in Central and South America, where there is evidence that it has been cultivated in Mexico and Peru for thousands of years.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
CharacteristicsEdit
The first "stringless" bean was bred in 1894 by Calvin Keeney, called the "father of the stringless bean," while working in Le Roy, New York.<ref name="keeney">Template:Cite book</ref> Most modern green bean varieties do not have strings.Template:R
PlantEdit
Green beans are classified by growth habit into two major groups, "bush" (or "dwarf") beans and "pole" (or "climbing") beans.<ref name="TBC">Template:Cite book</ref><ref>Template:Cite book</ref><ref name="RHS">How to Grow French Beans – Royal Horticultural Society, RHS Gardening</ref>
Bush beans are short plants, growing to not more than Template:Convert in height, often without requiring supports. They generally reach maturity and produce all of their fruit in a relatively short period, then cease to produce. Owing to this concentrated production and ease of mechanized harvesting, bush-type beans are those most often grown on commercial farms. Bush green beans are usually cultivars of the common bean (Phaseolus vulgaris).
Pole beans have a climbing habit and produce a twisting vine, which must be supported by "poles," trellises, or other means. Pole beans may be common beans (Phaseolus vulgaris), runner beans (Phaseolus coccineus) or yardlong beans (Vigna unguiculata subsp. sesquipedalis).<ref name="Capomolla 2017">Template:Cite book</ref><ref name="Watson 1996">Template:Cite book</ref>
Half-runner beans have both bush and pole characteristics, and are sometimes classified separately from bush and pole varieties.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref>Template:Cite book</ref><ref>Template:Cite book</ref><ref>Template:Cite book</ref> Their runners can be about Template:Convert long.<ref>Template:Cite book</ref>Template:Irrelevant citation
VarietiesEdit
Over 130 varieties (cultivars) of edible pod beans are known.<ref>Template:Cite book</ref> Varieties specialized for use as green beans, selected for the succulence and flavor of their green pods, are the ones usually grown in the home vegetable garden, and many varieties exist. Beans with various pod colors (green, purple, red, or streaked.<ref>Singh B K, Pathak K A, Ramakrishna Y, Verma V K and Deka B C. 2011. "Purple-podded French bean with high antioxidant content." ICAR News: A Science and Technology Newsletter 17 (3): 9.</ref>) are collectively known as snap beans, while green beans are exclusively green. Pod shapes range from thin and circular ("fillet" types) to wide and flat ("romano" types) and more common types in between.
The three most commonly known types of green beans belonging to the species Phaseolus vulgaris are string or snap beans, which may be round or have a flat pod; stringless or French beans, which lack a tough, fibrous string running along the length of the pod; and runner beans, which belong to a separate species, Phaseolus coccineus. Green beans may have a purple rather than green pod, which changes to green when cooked.<ref name="Press 2002">Template:Cite book</ref>Template:Page needed Yellow-podded green beans are also known as wax beans.Template:R Wax bean cultivars are commonly of the bush or dwarf form.<ref name="Phillips 1993">Template:Cite book</ref>Template:Page needed
All of the following varieties have green pods and are Phaseolus vulgaris unless otherwise specified:
Bush (dwarf) typesEdit
Pole (climbing) typesEdit
ProductionEdit
| Production of green beans – 2020 | ||
|---|---|---|
| Country | (Millions of tonnes) | |
| Template:CHN | 18.0 | |
| Template:IDN | 0.9 | |
| {{#invoke:flag | India}} | 0.6 |
| {{#invoke:flag | Turkey}} | 0.5 |
| Template:THA | 0.3 | |
| World | 23.3 | |
| Source: FAOSTAT of the United Nations<ref name="faostat">{{#invoke:citation/CS1|citation | CitationClass=web
}}</ref> | |
In 2020, world production of green beans was 23 million tonnes, with China accounting for 77% of the total (table).
GalleryEdit
- A green bean.jpg
Green common beans on the plant
- CDC greenbean.jpg
Whole raw green beans packed in a punnet for sale
- Green beans with green bean slicer.jpg
Green beans with bean slicer
- Cut Green Beans.jpg
Cut and cooked green beans
- Four Different Varieties of Green Beans (Phaseolus vulgaris).jpg
Four varieties of the common green bean presenting variations in color, size, shape, and texture
- Pickled Beans (3920862383).jpg
Pickled beans
- GreenbeanFrance.jpg
Green beans on a bush plant
- Signal-2023-08-05-204959 003.jpg
Mature green beans, freshly picked in France
- Green beans, strung up to dry on the porch, known as leather britches or shucky beans.jpg
Dried green beans (known as leather britches or shucky beans)