The maturity time of Gannan navel oranges is in autumn and winter, and April to October is the fruit growth period.

Gannan navel orange, a specialty product of Ganzhou City, Jiangxi Province, is a national geographical indication product of China. The annual output of navel oranges in southern Gansu reaches one million tons. The place of origin, Ganzhou City, Jiangxi Province, has become the world's largest navel orange planting area, the third largest navel orange production area in the world, and the largest navel orange producing area in the country. ?

Gannan navel oranges are large in shape, bright orange-red, smooth and beautiful, with an edible rate of 85%, crisp and tender meat, crumbly, rich, sweet and fragrant flavor, and a juice content of more than 55%.

Extended information:

Nutritional value

Gannan navel oranges are rich in various nutrients necessary for the human body. According to testing, every 100ml of fresh navel orange juice contains: Soluble solids 11 to 15, sugar 11.0 to 13.0g, citric acid 0.80 to 0.95g, calories 207J, protein 0.9g, fat 0.2g, amino acids 203.9mg, vitamin A 0.127mg, vitamin B10.08mg, vitamin B20.03mg.

Vitamin C55~75mg, and rich in calcium, iron, phosphorus, magnesium, potassium, sodium and other elements. It also contains vitamin P, carotene, carotenoids, (R)-lemon oil, coumarin, flavonoids, limonoid analogs, glyceroglycolipids, acridone, pectin and other anti-cancer substances.

Types

1. Newhall navel orange

Chinese navel bud variant, the main variety grown in California, USA. It was introduced to my country in 1978 and is widely cultivated in various citrus producing areas. It was introduced to Ganzhou in the early 1980s and became the main navel orange variety in southern Gansu.

Characteristics: Strong growth potential, slightly open, and thick branches. The leaves are larger, oval, and dark green in color. It has strong early fruiting, high yield and stable yield. The fruit is larger, oblong, and the longitudinal diameter is significantly larger than the transverse diameter. The fruit surface is smooth and deep orange-red. The umbilical hole is small, often closed, and the umbilicus is yellow and cracked. The meat is crispy and tender, juicy, with a rich and sweet flavor, and is of excellent quality. The fruit matures in early to mid-November and is currently the main variety grown in the navel orange producing areas of southern Jiangxi.

2. Longhui red navel orange

Originally produced in Longhui Town, Nankang, Ganzhou, it is a bud variation of Newhall navel orange. In 2012, it passed the variety identification by the Jiangxi Provincial Crop Variety Approval Committee, with identification number: Gangui Citrus 2012002.

Characteristics: The tree has a moderate vigor and a relatively open posture. The branches are soft and sparse, the internodes are slightly longer, and there are no thorns. The leaves are dark in color, with slightly protruding veins, large and thick, and obvious curling. The yield is high and stable, and the fruits are large, neat and uniform.

The fruit turns green in late September and matures in early to mid-November. The color of the fruit surface is darker than that of Newhall navel oranges, and the acidity is slightly lower than that of Newhall navel oranges. Soluble solids 12.2-14.2, total acid 0.47-0.58, Vc47.1-51.8mg/100ml.

3. Fukumoto Navel Orange

Original from Wakayama Prefecture, Japan, it is a branch variation of Navel Orange. Famous for its rich red fruit color, it is also called Fukumoto red navel orange. It was introduced to my country in 1981 and introduced to Ganzhou in the late 1990s. Currently, it is rarely cultivated.

Characteristics: The tree is of medium vigor, with an open posture and thick and sparse branches. The leaves are oblong, large and plump. The fruit is larger, weighing 200-250 grams per fruit, short oval or spherical, with a round top, mostly closed navel, and obvious short radial grooves on the fruit stem.

The fruit surface is smooth, dark orange, and the peel is medium thick and easy to peel. The meat is crisp, tender and juicy, with a sweet and sour flavor, rich aroma and excellent quality. Ripe in mid-to-late October.

Baidu Encyclopedia - Gannan Navel Orange