According to Dr. Yu Xudong of Hainan University, the research group has recorded more than 20 ancient camellia oleifera trees in Hainan resource investigation for more than ten years. The Wang Shuji diameter of the largest ancient Camellia oleifera discovered this time is smaller 10 cm than that of the ancient Camellia oleifera discovered in Qionghai for more than 500 years, so it is inferred that the tree is at least 500 years old.
The adult period of Camellia oleifera includes growth and fruiting period and full fruit period. ?
Growth and fruiting period: the age of the tree is 6- 10 years, the tree grows vigorously, branches a lot, flowers and fruits gradually increase, and the yield is increasing year by year. ?
Complete fruiting period: 10- 120 When Camellia oleifera bears a large number of fruits, reproduction is dominant, the demand for light, temperature, water and fertilizer increases, and the fruiting parts move out.
Extended data:
Nutritional value of camellia oleifera oil;
Modern scientific and technological tests show that there are more than 90% unsaturated fatty acids, 80% to 83% oleic acid and 7% to 13% linoleic acid in tea oil, and it is rich in protein and vitamins A, B, D and E, etc. In particular, its rich linolenic acid is necessary for human body but cannot be synthesized.
Because tea oil is rich in unsaturated fatty acids, glycerides and vitamins, it has the effects of clearing away heat, reducing fire, clearing liver-fire, improving eyesight and prolonging life. It is an ideal high-nutrition, low-calorie and high-grade health-care edible oil.
In recent years, FAO has listed tea oil as a key healthy edible oil. The quality of tea oil in China has been tested and confirmed by the White House Institute of Health and the Chinese Center for Disease Control, which is superior to internationally recognized olive oil and is known as Oriental olive oil.
People's Daily Online-Danzhou found that the crown width of 500-year-old Camellia oleifera is about 40 square meters (Figure).
People's Network-Gannan Camellia oleifera, an indissoluble complex in Gannan people's hearts.