Distribution of producing areas of Ginkgo biloba

Ginkgo biloba is a deciduous tree of the genus Ginkgo biloba of the Ginkgo family. It is the oldest relict of gymnosperms left over from the Quaternary glacier movement. It grows slowly and lives very long. Under natural conditions, it takes more than 20 years from planting to bearing ginkgo fruit. It takes 40 years to bear a large number of fruits, with ornamental, economic and medicinal value. Let's take a look at the distribution of ginkgo trees.

Distribution of producing areas of Ginkgo biloba

Ginkgo biloba is widely distributed in China, Japan, North Korea, South Korea, Canada, New Zealand, Australia, the United States, France, Russia and other countries and regions. In China, ancient ginkgo trees have been found in the eastern plain to the southwest mountain area from several meters to tens of meters above sea level, especially in Shandong, Zhejiang, Jiangxi, Anhui, Guangxi, Hubei, Sichuan, Jiangsu and Guizhou provinces.

The producing environment of ginkgo biloba trees

Ginkgo biloba is a positive tree, which likes the deep loam with proper moisture and good drainage, and is suitable for growing in the subtropical monsoon area with superior hydrothermal conditions. It can grow well in both acid soil and calcareous soil, while neutral or slightly acidic soil is the most suitable, where it is not resistant to stagnant water, it is more resistant to drought, and grows poorly in too dry places, stony slopes or low humid places. At the initial stage, the growth is slow and the tillering is strong. The female plant generally begins to bear fruit in about 20 years, and the 500-year-old tree can still bear fruit normally.

Common varieties of Ginkgo biloba

1. Dongting Emperor: the seeds are obovoid and plump, with an average nuclear weight of 3.53 grams and a size of 1.75 × 2.93 × 1.48 cm (vertical diameter × horizontal × thickness), which is the largest seed of ginkgo biloba in Dongting Mountain.

2. Small bergamot: the seed moment is round, the average weight of the nucleus is 2.6 grams, and the size is 1.62 × 2.62 × 1.32 cm. Produced in Dongting Mountain, Suzhou, Jiangsu Province.

3. Duck tail Ginkgo biloba: the end of the nucleus is flat and pointed, shaped like a duck tail, mostly real. Produced in Dongting Dongshan, Suzhou, Jiangsu Province.

4. Buddha finger: the Obovate moment of the seed is round, the average weight of the nucleus is 3 grams, the size is 1.7 × 2.7 × 1.3 cm, the shell is thin, the kernel is full, the pulp water is sufficient, and the yield is high. There are 20 seeds on each seed branch, and it is better to have 2 seeds. Produced in Taixing, Jiangsu Province.

5. Egg bergamot: the seed is shaped like an egg, the apex is slightly smaller, the middle is wider than the middle, the nucleus is large and round, oval or diamond-shaped, both ends are slightly pointed. It is produced in Madian, Zhuji, Zhejiang.

6. Round-bottomed bergamot: the seed moment is round, both ends are round and obtuse, the core is long and oval, the apex is slightly pointed and the base is round and obtuse, extremely plump. Produced in Zhuji, Zhejiang Province.

7. Olive bergamot: the seed is long Obovate, the apex is slightly rounded and obtuse, the middle and upper part is the largest, the lower part is narrow, the nucleus is narrow and long-oval, the apex is round, the tip is pointed, and the base is extremely narrow. Produced in Xing'an, Guangxi.

8. Centerless Ginkgo biloba: the seed is flat and round, the top is obtuse and full, the base is flat and slightly concave, the nucleus is broadly ovate-oblate, the ridge is inconspicuous, the size is 2.1 × 2 × 1.6 cm, the endosperm is rich in endosperm without embryo, no bitterness. Produced in Dongting Mountain, Suzhou, Jiangsu Province.

9. Plum nucleus: the seed is large, nearly round, the apex is obtuse, the base is slightly wide, the nucleus is slightly flat, the apex is obtuse or acuminate, and the base attenuates. Produced in Zhuji, Zhejiang.

10. Paulownia fruit: the seed is large, oblate, the apex is obtuse, the base is wide, the nucleus is subrounded, the apex is wide, the obtuse circle is unpointed, the base is wide, the ridges on both sides are prominent, and the bottom is fishtail. Produced in Xing'an, Guangxi.

11. Cotton flower and fruit: the seed is oval, the apex is obtusely round, there is a thin vertex bulge at the top, there is a "one" or "ten" groove near the vertex, the seed base is broad, often double-seeded, the nucleus is oblate-oval, slightly narrow, the apex is wide and pointed, the ridges on both sides are prominent, the edges are sharp, the lower part is narrow, and there are one or two small bumps at the bottom. Produced in Xing'an, Guangxi.

12. Big horse bell: the seed moment is round, the top is obtuse and the base is flat, the top is protruding and has a tip, the nucleus is oval, hypertrophy, the apex is obtusely pointed and the base is broadly round, there is a ridge above the middle, and the wing is not obvious.