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Companion plantsSee also: List of companion plants and List of beneficial weedsTomatoes serve, or are served by, a large...
11/02/2023

Companion plants
See also: List of companion plants and List of beneficial weeds
Tomatoes serve, or are served by, a large variety of companion plants.
Among the most famous pairings is the tomato plant and carrots; studies supporting this relationship have produced a popular book about companion planting, Carrots Love Tomatoes.[71]
The devastating tomato hornworm has a major predator in various parasitic wasps, whose larvae devour the hornworm, but whose adult form drinks nectar from tiny-flowered plants like umbellifers. Several species of umbellifer are therefore often grown with tomato plants, including parsley, Queen Anne's lace, and occasionally dill. These also attract predatory flies that attack various tomato pests.[72]
Borage is thought to repel the tomato hornworm moth.[73]

Although not a disease as such, irregular supplies of water can cause growing or ripening fruit to split. Besides cosmet...
11/02/2023

Although not a disease as such, irregular supplies of water can cause growing or ripening fruit to split. Besides cosmetic damage, the splits may allow decay to start, although growing fruits have some ability to heal after a split. In addition, a deformity called cat-facing can be caused by pests, temperature stress, or poor soil conditions. Affected fruit usually remains edible, but its appearance may be unsightly.

Companion plants
See also: List of companion plants and List of beneficial weeds
Tomatoes serve, or are served by, a large variety of companion plants.

Among the most famous pairings is the tomato plant and carrots; studies supporting this relationship have produced a popular book about companion planting, Carrots Love Tomatoes.[71]

The devastating tomato hornworm has a major predator in various parasitic wasps, whose larvae devour the hornworm, but whose adult form drinks nectar from tiny-flowered plants like umbellifers. Several species of umbellifer are therefore often grown with tomato plants, including parsley, Queen Anne's lace, and occasionally dill. These also attract predatory flies that attack various tomato pests.[72]

Borage is thought to repel the tomato hornworm moth.[73]

Plants with strong scents, like alliums (onions, chives, garlic), mints (basil, oregano, spearmint) and French marigold, (Tagetes patula) are thought to mask the scent of the tomato plant, making it harder for pests to locate it, or to provide an alternative landing point, reducing the odds of the pests from attacking the correct plant.[74] These plants may also subtly affect the flavor of tomato fruit.[75] Basil is popularly recommended as a companion plant to the tomato. Common claims are that basil may deter pests or improve tomato flavor. However, in double-blind taste tests, basil did not significantly affect the taste of tomatoes when planted adjacent to them.[76][77]

Tomato plants can protect asparagus from asparagus beetles, because they contain solanine that kills this pest,[citation needed] while asparagus plants contain Asparagusic acid that repels nematodes known to attack tomato plants.[78] Marigolds also repel nematodes.[79][80][81]

In the wild, original state, tomatoes required cross-pollination; they were much more self-incompatible than domestic cu...
11/02/2023

In the wild, original state, tomatoes required cross-pollination; they were much more self-incompatible than domestic cultivars. As a floral device to reduce selfing, the pistil of wild tomatoes extends farther out of the flower than today's cultivars. The stamens were, and remain, entirely within the closed corolla.

As tomatoes were moved from their native areas, their traditional pollinators (probably a species of halictid bee) did not move with them.[82] The trait of self-fertility became an advantage, and domestic cultivars of tomato have been selected to maximize this trait.[82]

This is not the same as self-pollination, despite the common claim that tomatoes do so. That tomatoes pollinate themselves poorly without outside aid is clearly shown in greenhouse situations, where pollination must be aided by artificial wind, vibration of the plants (one brand of vi****or is a wand called an "electric bee" that is used manually), or more often today, by cultured bumblebees.[83] The anther of a tomato flower is shaped like a hollow tube, with the pollen produced within the structure, rather than on the surface, as in most species. The pollen moves through pores in the anther, but very little pollen is shed without some kind of externally-induced motion. The ideal vi****ory frequencies to release pollen grains are provided by an insect, such as a bumblebee, or the original wild halictid pollinator, capable of engaging in a behavior known as buzz pollination, which honey bees cannot perform. In an outdoors setting, wind or animals usually provide sufficient motion to produce commercially viable crops.[citation needed]

Tomato plants are vines, initially decumbent, typically growing 180 cm (6 ft) or more above the ground if supported, alt...
11/02/2023

Tomato plants are vines, initially decumbent, typically growing 180 cm (6 ft) or more above the ground if supported, although erect bush varieties have been bred, generally 100 cm (3 ft 3 in) tall or shorter. Indeterminate types are "tender" perennials, dying annually in temperate climates (they are originally native to tropical highlands), although they can live up to three years in a greenhouse in some cases. Determinate types are annual in all climates.[citation needed]

Tomato plants are dicots, and grow as a series of branching stems, with a terminal bud at the tip that does the actual growing. When the tip eventually stops growing, whether because of pruning or flowering, lateral buds take over and grow into other, fully functional, vines.[9][self-published source?]

An unripe tomato growing on the vine
Tomato vines are typically pubescent, meaning covered with fine short hairs. The hairs facilitate the vining process, turning into roots wherever the plant is in contact with the ground and moisture, especially if the vine's connection to its original root has been damaged or severed.[citation needed]

Most tomato plants have compound leaves, and are called regular leaf (RL) plants, but some cultivars have simple leaves known as potato leaf (PL) style because of their resemblance to that particular relative. Of RL plants, there are variations, such as rugose leaves, which are deeply grooved, and variegated, angora leaves, which have additional colors where a genetic mutation causes chlorophyll to be excluded from some portions of the leaves.[10][unreliable source?]

The leaves are 10–25 cm (4–10 in) long, odd pinnate, with five to nine leaflets on petioles,[11] each leaflet up to 8 cm (3 in) long, with a serrated margin; both the stem and leaves are densely glandular-hairy.[citation needed]

Their flowers, appearing on the apical meristem, have the anthers fused along the edges, forming a column surrounding the pistil's style. Flowers in domestic cultivars can be self-fertilizing. The flowers are 1–2 cm (1⁄2–3⁄4 in) across, yellow, with five pointed lobes on the corolla; they are borne in a cyme of three to 12 together.[citation needed]

The tomato is the edible berry of the plant Solanum lycopersicum,[1][2] commonly known as the tomato plant. The species ...
11/02/2023

The tomato is the edible berry of the plant Solanum lycopersicum,[1][2] commonly known as the tomato plant. The species originated in western South America, Mexico, and Central America.[2][3] The Mexican Nahuatl word tomatl gave rise to the Spanish word tomate, from which the English word tomato derived.[3][4] Its domestication and use as a cultivated food may have originated with the indigenous peoples of Mexico.[2][5] The Aztecs used tomatoes in their cooking at the time of the Spanish conquest of the Aztec Empire, and after the Spanish encountered the tomato for the first time after their contact with the Aztecs, they brought the plant to Europe, in a widespread transfer of plants known as the Columbian exchange. From there, the tomato was introduced to other parts of the European-colonized world during the 16th century.[2]

Tomatoes are a significant source of umami flavor.[6] They are consumed in diverse ways: raw or cooked, and in many dishes, sauces, salads, and drinks. While tomatoes are fruits—botanically classified as berries—they are commonly used culinarily as a vegetable ingredient or side dish.[3]

Numerous varieties of the tomato plant are widely grown in temperate climates across the world, with greenhouses allowing for the production of tomatoes throughout all seasons of the year. Tomato plants typically grow to 1–3 meters (3–10 ft) in height. They are vines that have a weak stem that sprawls and typically needs support.[2] Indeterminate tomato plants are perennials in their native habitat, but are cultivated as annuals. (Determinate, or bush, plants are annuals that stop growing at a certain height and produce a crop all at once.) The size of the tomato varies according to the cultivar, with a range of 1–10 cm (1⁄2–4 in) in width.[2]

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