1, citrus
The genus Citrus Rutaceae. Sex likes warm and humid climate, and its cold tolerance is slightly stronger than that of pomelo, lime and sweet orange. The citrus subfamily of Rutaceae is distributed between north latitude16 ~ 37. It is a tropical and subtropical evergreen fruit tree (except Fructus Aurantii), and there are three genera used for economic cultivation: Fructus Aurantii, Citrus and Kumquat.
2. Sugarcane
Sugarcane, the rhizome is stout and developed. The height of the stalk is 3-5(-6) meters. China Taiwan Province, Fujian, Guangdong, Hainan, Guangxi, Sichuan, Yunnan and other southern tropical areas are widely planted. Sugarcane is suitable for planting in places with fertile soil, abundant sunshine and large temperature difference between winter and summer. Sugarcane is a temperate and tropical crop, which is the raw material for making sucrose, and ethanol can be extracted as an energy substitute.
3. Loquat
Loquat, native to southeastern China, is famous for its leaves that look like pipa instruments, and its flowers can be used as medicine. The tree is 3 ~ 5 meters high, with long and big leaves, thick and fluffy, long oval shape, like a pipa. Loquat, unlike most fruit trees, blooms in autumn or early winter, and its fruit matures in spring to early summer, earlier than other fruits, so it is called "the only one who is prepared for the four seasons in fruit trees".
4. Grapes
Grape fruit is spherical or oval, with flowering in April-May and fruiting in August-September. Grape is one of the oldest fruit tree species in the world. The fossil plants of grape were found in Tertiary strata, indicating that they were all over Europe, Asia and Greenland at that time. Grapes are native to western Asia and cultivated all over the world. About 95% of the grapes around the world are concentrated in the northern hemisphere.
5. Olives
Olive is an oil crop of Oleaceae, which is a famous subtropical fruit tree and an important economic tree. Its producing areas are mainly concentrated in Mediterranean countries, such as Spanish, Italian, Greek, Tunisia, Turkish, Syrian and Moroccan countries.
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