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Strawberry

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The garden strawberry, known scientifically as *Fragaria × ananassa*, is a widely cultivated hybrid plant. It belongs to the Rosaceae family, which is the rose family. People grow these plants globally for their sweet, juicy, and aromatic red fruit.

Fruits of Fragaria × ananassa
Fruits of Fragaria × ananassa

Because of their popularity, they are used in many foods. These include jams, ice creams, and chocolates. Even artificial strawberry flavors are common in commercial products. In 2023, global production exceeded ten million tons. China led this production, accounting for 40% of the total. The United States was the second largest producer.

Botanically, the strawberry is not a true berry. Instead, it is classified as an aggregate accessory fruit. This means the fleshy, edible part comes from the receptacle, which is the base of the flower.

Strawberry vs Peapod
Strawberry vs Peapod

The tiny structures on the outside are actually the real fruits. These are called achenes. Each achene is a small botanical fruit that contains a single seed inside. While the achenes make up only about 1% of the fruit's fresh weight, they contribute 11% of its total polyphenols.

Fragaria moschata detail
Fragaria moschata detail

The modern garden strawberry is a hybrid created from two different species. In the 1750s, gardeners in Brittany, France, developed this plant. They crossed *F. virginiana* from North America with *F. chiloensis* from Chile. Amédée-François Frézier had originally brought the Chilean species to Europe in 1714.

USFWS fragaricus chiloensis1 (23535206260)
USFWS fragaricus chiloensis1 (23535206260)

At first, the Chilean plants grew well but produced no fruit. This happened because they bore only female flowers. French gardeners solved this by planting the wild woodland strawberry, *F. vesca*, nearby to provide pollen. This cross-pollination allowed the plants to produce abundant fruit.

Genetically, strawberries are quite complex. Both parent species and the modern hybrid are octoploid. This means they possess eight sets of chromosomes, or 8N.

Hybridisation and polyploidy in strawberries
Hybridisation and polyploidy in strawberries

Scientists published the full genome sequence of the garden strawberry in 2019. During the Green Revolution of the 1950s, agronomists used selective breeding to increase diversity. They focused on creating perpetual flowering hybrids. These plants are not sensitive to changes in photoperiod, which is the amount of light in a day. This advancement allowed for higher yields and expanded production in places like California.

The flavor and aroma of a strawberry come from many chemical compounds. These include esters, terpenes, and furans.

Furaneol
Furaneol

There are about 360 volatile compounds in the fruit, and 31 of them are strongly linked to its desirable taste. For example, the compound furaneol is a major contributor to its fragrance. In the United States, breeders specifically look for methyl anthranilate and gamma-decalactone. These compounds provide a "sweet and fruity" aroma. The bright red color is caused by pigments called anthocyanins. The main pigment is pelargonidin-3-glucoside, though cyanidin-3-glucoside is also present in smaller amounts.

Cultivation methods vary depending on the region and climate. Some farmers use annual plasticulture, where raised beds are covered in plastic to stop weeds and erosion. Others use a perennial system of matted rows or mounds. Some studies show that growing plants in compost socks can increase levels of fructose, glucose, and various acids.

Strawberries face many challenges from pests and diseases. Over 200 species of arthropods, such as aphids and mites, attack the plants. Aphids can even carry the strawberry mild yellow-edge virus. Fungal diseases like gray mold and powdery mildew also affect the fruit and leaves. To protect crops, scientists study how plants metabolize certain volatiles to fight off mold.

Strawberries have a long history in human culture and art. The Roman poet Virgil wrote about them, mentioning a snake lurking in the grass beneath the fruit. This imagery was later used by writers like Shakespeare. In art, strawberries appear in famous works like Hieronymus Bosch's *The Garden of Earthly Delights*. Historically, they symbolized many things, such as religious blessings or the fleeting nature of joy. By the late 20th century, the symbol's meaning shifted toward female sexuality. Today, they remain a culinary staple, famous in desserts like pavlova and strawberry shortcake.

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🖼️ Images & Media (12)
File:Hybridisation and polyploidy in strawberries.svg
Hybridisation and polyploidy in strawberries.svg
File:Rosa rubiginosa 1.jpg
Rosa rubiginosa 1.jpg
File:Potentilla recta a1.jpg
Potentilla recta a1.jpg
File:Fragaria_viridis_fruit_-_Keila.jpg
Fragaria_viridis_fruit_-_Keila.jpg
File:Fragaria orientalis 42864136.jpg
Fragaria orientalis 42864136.jpg
File:Fragaria moschata detail.JPG
Fragaria moschata detail.JPG
File:Fragaria vesca - metsmaasikas.jpg
Fragaria vesca - metsmaasikas.jpg
File:Fragaria virginiana 3243.JPG
Fragaria virginiana 3243.JPG
File:USFWS fragaricus chiloensis1 (23535206260).jpg
USFWS fragaricus chiloensis1 (23535206260).jpg
File:Fruits of Fragaria × ananassa.JPG
Fruits of Fragaria × ananassa.JPG
File:Strawberry vs Peapod.svg
Strawberry vs Peapod.svg
File:Furaneol.svg
Furaneol.svg
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