What is the variety of Daya branch citrus, and the introduction of Daya citrus varieties

I have been making citrus seedlings for more than ten years and have never heard of this variety, which should not be the official name, a local variety.

<>1. Tree shape characteristics: Daya citrus is cross-bred by the China Citrus Research Institute with Kiyomi orange and new line No. 3 ponkan, the fruit appearance and tree body are similar to Harumi, but the quality exceeds Harumi, so some people call it "improved Harumi". The fruit is large, the weight of a single fruit is 290 grams, the fruit is broadly oval, the peel is orange, easy to peel, the flesh is delicate and delicate, the juice is rich and the flavor is strong, the soluble solids are acidic, and the soluble solids can reach 19%-22% after full maturity, and the edible rate is 71%, seedless, and the yield is abundant.

1. Tree features

1. Daya citrus is produced by the China Citrus Research Institute with the Kiyomi orange and the No. 3 ponkan of the new line, and the fruit appearance and tree body are very similar to Harumi, but the quality is better than Harumi, so some people call it "improved Harumi".

2. The fruit of this variety is large, the weight of a single fruit is 290 grams, the broad egg is round, the peel is orange, easy to peel, the flesh is delicate and delicate, the juice is rich and flavorful, the soluble solids are acidic, and the soluble solids can reach 19%-22% after full maturity, and the edible rate is 71%, seedless and abundant.

3. The leaves are relatively dense, dark green, broadly lanceolate, the leaf tip is acute, the leaf base is wedge-shaped, the leaf margin is entire, the wing blade is linear, the leaf length is about, the width is about, and the leaf shape index.

4. The flowers of this variety are small, the petals are white, there are 5 pieces, the petals are long and wide, the flower column is high and erect, the stamens are 17-20, separated and raw, the anthers are pale yellow, and the pollen vitality is high.

5. The average weight of a single fruit is 290 grams, and the transverse diameter of the fruit is longitudinal diameter.

6. The surface of the ripe fruit is yellow, smooth, shiny, fine oil cells, and the peel is thin, millimeter thick, and it is easy to peel.

Second, the output performance

1. This variety mainly takes early autumn shoots as the fruiting mother branches, and the fruiting branches are generally leafy and flowering branches, and the fruit setting rate in the middle and lower parts of the crown will be relatively high.

2. After 3 years of planting, you can start to test flowering after planting the grafted seedlings of Citrus aurantium anvil, and the plant yield can reach kilograms in the 4th year and kilograms in the 5th year.

3. The "Daya Miscellaneous Mandarin" on the middle anvil of Rinan No. 1 can be tested in the second year, and the yield per plant is between kilograms, and the yield of the plant can reach kilograms in the third year, with a yield of about 1400 kilograms per mu.

3. Product features

1. The average fruit weight of Daya mandarin is 160 grams, the peel is relatively smooth, orange-red, the appearance is gorgeous, the peel is thin, and the peeling is good.

2. The flesh is thick orange, there is more juice, the flesh is very fine and soft, the soluble solids are 14%, invert sugar, acid content, and the edible rate is 84%.

3. Chongqing area matures from early January to mid-February, with relatively little pollen, and is generally seedless or less seeded when cultivated alone, and there are a small number of seeds after mixed planting.

The highest-end citrus varieties at the moment are:

1. Ehime No. 38.

Ehime No. 38 matures around October and November every year, and when it matures, it is large, has a high sugar content, has sufficient moisture, and has a delicate taste.

2. Oita No. 4.

This variety matures from August to October, with a smooth appearance, thin skin, orange-yellow flesh and a crispy mouthfeel.

3. See you tomorrow.

It usually matures in January every year, and the skin is easy to peel off after ripening, and there is no seed sedan in it, and it can be stored for 2 to 3 months.

4. Late blood No. 8.

It ripens in April and the flesh has a rose scent.

Botanical History of Citrus:

China is one of the important origins of citrus, citrus resources are abundant, excellent varieties are numerous, there are more than 4,000 years of cultivation history, after long-term cultivation, selection, citrus has become a precious fruit of human beings, Hunan Shimen, planting citrus for a long time, as early as more than 2,000 years ago, the patriotic poet Qu Yuan wrote the famous article "Ode to Orange" in his hometown.

According to research, citrus originated in China's Yunnan-Guizhou Plateau, through the Yangtze River, down the Yangtze River, to the south of the Huai River, the lower reaches of the Yangtze River, until the Lingnan region, after the Chinese people long-term cultivation, selection, citrus has become a precious fruit for human beings, in the 15th century, the Portuguese brought Chinese sweet oranges to the Mediterranean coast for cultivation, locally known as Chinese apples.

Later, sweet oranges were spread to Latin America and the United States, in 1821, the British came to China to collect specimens, brought kumquat to Europe, in 1892, the United States introduced mandarin oranges from China, called Chinese mandarins, and the English mandarin and mandarin oranges were called mandarins, which originally meant China's precious closed search mandarin.

Wenzhou mandarin orange is a Japanese monk in the Tang Dynasty who came to Tiantai Mountain in Zhejiang, China to incense, brought back citrus seeds, planted in Kagoshima, Long Island, Japan, mutated and selected.

Citrus is cultivated on five continents, and Brazil, the United States, China, Japan, Spain, Italy, Morocco, Mexico, Israel, South Africa, Algeria, Egypt, Greece, Turkey, Argentina, India, and Australia are the majority of cultivated areas and yields.

Daya citrus is a cross between the researchers of the Citrus Research Institute of Southwest University (Citrus Research Institute of the Chinese Academy of Agricultural Sciences) in 1998 with Kiyomi orange as the female parent and the new line No. 3 mandarin as the male parent, after more than 10 years of selective breeding.

Daya citrus has medium cold tolerance, suitable for planting in citrus producing areas above the average annual temperature, and requires a minimum temperature of not less than -7 in winter. This condition is not met in the Mianyang area.

In purple soil and barren slope land, the improvement of soil should be strengthened, more organic fertilizer and phosphorus and potassium fertilizer should be applied, and an appropriate amount of zinc and magnesium fertilizer should be supplemented to ensure that the leaf color is dark and green. The soil in Mianyang area is also not eligible.

Benefits of tangerines:

Tangerines are rich in vitamin C and citric acid, the former has a beauty effect, and the latter has a fatigue relieving effect;

The thin peel on the inside of oranges contains dietary fiber and pectin, which can promote laxative and reduce cholesterol.

Hesperidin can strengthen the toughness of capillaries, lower blood pressure, and dilate the coronary arteries of the heart, so oranges are a food for preventing coronary heart disease and arteriosclerosis.

Sweet oranges: Xinhui sweet oranges (

The main producing areas are Xinhui, Guangzhou, Xingning in Guangdong, and southern Fujian and southern Guizhou are also cultivated) and Jin Cheng (the main production area is Jiangjin, Sichuan, Hubei, Hunan, Guizhou and other places have been introduced and promoted).

Broad-skinned citrus: Wenzhou mandarin orange (native to Huangyan, Zhejiang, China, and later introduced to Japan, and many strains have been bred and introduced to China in recent years), banana mandarin (cultivated in Guangdong, Guangxi, Fujian, Sichuan, Taiwan), ponkan (also known as Lu mandarin, cultivated in Guangdong, Guangxi, Fujian, Zhejiang, Hubei, Sichuan, Taiwan and other places) and local early mandarin (mainly produced in Huangyan, Zhejiang, Fujian, Hubei, Guangdong and other places are also cultivated).

Pomelo: Shatian pomelo (native to Shatin, Rongxian County, Guangxi, and cultivated more in Guangxi, Guangdong, and Sichuan) and Pingshan pomelo (mainly produced in Zhangzhou, Fujian).

Lemons: Euric (native to the United States. Sichuan is cultivated more, and a small amount is cultivated in Guangdong, Guangxi, Fujian, Taiwan and other places) and bergamot (Guangdong, Zhejiang, Sichuan have a small amount of cultivation).

Kumquat: also known as golden bomb, kumquat, Ningbo kumquat. Native to our country. Zhejiang, Hunan, Jiangxi, and Guangxi are cultivated more, and a small amount is cultivated in Shanghai and Jiangsu. The quality is medium to high, and it is not resistant to storage.

I would like to recommend to you a new variety, Wuxian Mandarin, which is on the market in mid-March and sells fresh fruit until the end of May.