![]() ![]() In 2009, an international team of researchers announced they had sequenced the cucumber genome. They may have a pollenizer cultivar interplanted, and the number of beehives per unit area is increased, but temperature changes induce male flowers even on these plants, which may be sufficient for pollination to occur. Newer gynoecious hybrid cultivars produce almost all female blossoms. Traditional cultivars produce male blossoms first, then female, in about equivalent numbers. In Europe, they are grown outdoors in some regions, where bees are likewise excluded. In the United States, these are usually grown in greenhouses, where bees are excluded. Ī few cultivars of cucumber are parthenocarpic, the blossoms of which create seedless fruit without pollination, which degrades the eating quality of these cultivar. Some self-compatible cultivars exist that are related to the 'Lemon cucumber' cultivar. Most cucumbers that require pollination are self-incompatible, thus requiring the pollen of another plant in order to form seeds and fruit. Cucumbers may also be pollinated via bumblebees and several other bee species. For this purpose, thousands of honey beehives are annually carried to cucumber fields just before bloom. Most cucumber cultivars are seeded and require pollination. ![]() Flowering and pollination Cucumis sativus flower Genomic information NCBI genome ID However, much like tomatoes and squashes, it is often perceived, prepared, and eaten as a vegetable. In botanical terms, the cucumber is classified as a pepo, a type of botanical berry with a hard outer rind and no internal divisions. Ĭucumber fruits consist of 95% water (see nutrition table). The fruit of typical cultivars of cucumber is roughly cylindrical, but elongated with tapered ends, and may be as large as 62 centimeters (24 in) long and 10 centimeters (4 in) in diameter. The vine has large leaves that form a canopy over the fruits. ![]() The plant may also root in a soilless medium, whereby it will sprawl along the ground in lieu of a supporting structure. The cucumber is a creeping vine that roots in the ground and grows up trellises or other supporting frames, wrapping around supports with thin, spiraling tendrils. In North America, the term wild cucumber refers to plants in the genera Echinocystis and Marah, though the two are not closely related. The cucumber originates from the Himalayas, China ( Yunnan, Guizhou, Guangxi), and Northern Thailand, but now grows on most continents, and many different types of cucumber are grown commercially and traded on the global market. Considered an annual plant, there are three main types of cucumber-slicing, pickling, and seedless-within which several cultivars have been created. The cucumber ( Cucumis sativus) is a widely-cultivated creeping vine plant in the family Cucurbitaceae that bears cylindrical to spherical fruits, which are used as culinary vegetables. ![]()
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