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Batuan fruit tree
The Batuan tree (Citrus tachibana Nakai var. tachibana), or the Tachibana, is a citrus cultivar of Japanese origin, whose fruit are known for their bitter taste, particularly when harvested in July.
The cultivar was first described by botanist Ken-ichi Tachibana, who published his findings in a 1933 report from the Japan Forestry Research Institute (Genkō), which named the cultivar Citrus tachibana after him.
The cultivar's official name in the horticultural trade is "Batuan" or "tachibana". The cultivar's common name "tachibana" or "tachibana-hachi" (, ), is also used to refer to the tree as a whole. The cultivar's common name "batuan" or "batuan-hachi" () is used to refer to the fruits of the cultivar.
The cultivar's name in Japanese is .
The Batuan tree is an acidic, bittersweet citrus. The tree typically bears two oranges per year (in autumn) and five grapefruit in the first half of the year (between spring and autumn). The tree itself has a height of 20 to 30 meters and can live up to 160 years.
The Batuan tree produces small, thin-skinned, white-fleshed oranges and is one of the most popular varieties in Japan. As its name "Batuan" implies, the tree is known to have a high level of cold tolerance. In an agricultural census conducted in 1947, the Batuan tree was found to be the most popular and important variety of citrus tree in Japan, with its fruit alone it earned the country more money than all other types of trees.
In nature, the tree grows in areas that have a humid climate and a yearly rainfall of 1,700–2,000 ,mm (about 70–100 inches).
Despite its common name, the Batuan tree is not a sour fruit. It can be eaten whole or it can be juiced. The citrus has a very acidic flavor with a hint of a fruit candy flavor. When the citrus is juiced, the taste is sweeter. Some Japanese enjoy the fruits eaten whole while others prefer them blended with water to create a citrus cocktail.
Batuan oranges contain an average of 18 ,mg of vitamin C.
The Batuan tree is characterized by its size, shape, and color. At maturity the tree is between 10 and 15 m (about 33–49 ft) tall. The tree is typically between 20 and 30 cm (about 8–12 in) in diameter at the base. The tree can grow in any environment and, unlike most citrus, can survive in areas with a cold climate.
The tree has a spreading shape, with a branch on top that is straight and upright, and branches along the length of the tree that are long and slender. The Batuan tree's leaves are thin and long.
The Batuan tree has an orange-like appearance due to the fact that its leaves resemble an orange in shape. The leaves grow in bunches of 20 to 25 each in the early stages of development and gradually grow longer until the leaves grow to be 20 cm (about 8 in) long. The individual leaves are long and thin, with a rounded shape and sharp edges.
In late summer, the Batuan tree changes color from green to yellow.
Because the tree is not sensitive to heat, it grows in an almost endless variety of soil. The Batuan tree can grow in either a shady or sunny area of the garden. Because of its resistance to heat, the Batuan tree thrives in temperate climates, where the average temperature is below the optimum (32–34 ,°C, 90–93 ,°F). A large variety of citrus trees can be found in the Batuan citrus groves and fields, including kumquats, natsumis and satsumis. The Batuan tree can be grafted onto different citrus species and is one of the many varieties of citrus trees available.
The Batuan tree has the ability to withstand frost, unlike the majority of citrus trees. The Batuan tree is very hardy and can withstand temperatures as low as 7 ,°C (45 ,°F) and temperatures as high as 33 ,°C (92 ,°F).
The Batuan tree has also been known to have some resistant to several types of pests and diseases. When the fruit develops, the Batuan tree is considered to be highly resistant to citrus canker.
The Batuan tree has the potential to be a very large tree. The Batuan tree is highly resistant to a number of pest and disease and is known to be resistant to citrus canker, the most severe disease of citrus fruit.
The Batuan tree is highly resistant to citrus canker. In areas where the Batuan tree grows, it can thrive even in the presence of the most severe form of citrus canker.
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