Introduction of Yunnan Coffee Bean varieties with large grains and small grains

Introduction of Yunnan Coffee Bean varieties with large grains and small grains

Cymes several clustered in leaf axils, each with 2-5 flowers, without a total pedicel or with a very short peduncle; flowers fragrant, with pedicels 0.5-1 mm long; bracts base ±connate, dimorphic, 2 broadly triangular, nearly equal in length and width, the other 2 lanceolate, 2 times as long as wide, leaf-shaped; calyx tubular, 2.5-3 mm long, calyx eaves truncate or 5-denticulate. Corolla white, length varies from breed to breed, usually 10-18 mm long, apically often 5-lobed, rarely 4-or 6-lobed, lobes often longer than Corolla tube, tip often obtuse; anther protruding out of Corolla tube, 6-8 mm long; style 12-14 mm long, stigma 2-lobed, 3-4 mm long cutting material with straight branches, not a branch, because new plants grown from a branch cuttage can only grow creeping, not straight coffee trees. Cuttings should be cut with green uncorked, fully aged leaves, robust straight terminal buds at the bottom of paragraphs 2-3, not semi-corked and corked straight branches. The leaves of cuttings are four inches wide (about 6-8 cm), and each section of cuttings is 4-6 cm long. The cuttings are cut into two pieces, each with a blade, and the cut is oblique and smooth.

The slotting machine generally uses a sand bed with a thickness of 40-50 cm, with coarse sand in the lower part and medium fine sand in the upper part. The shade degree of the slotting bed should be 80-90%. Wash the sand first when using it, or you can mix it with the coconut bran of 1 stroke 2. Using spray equipment, the rooting rate of cuttings is high, but the cost of equipment purchase is high.

The cuttings can be cut obliquely or directly, and the cutting depth is buried at the leaf node. 10-15 cm in a row, with the leaves not covering each other as the standard. Fully sprinkle with water after insertion to make the cuttings in close contact with the sand. After cutting, plastic film should be covered on the cutting bed to reduce water evaporation and improve the rooting rate of cuttings. When covering the plastic film, it should be arched with iron wire or bamboo, inserted on the edge of the sand bed, and then covered with the plastic film, and then pressed to maintain the humidity in the bed. If you use spray equipment, you don't have to cover plastic film.

Also known as Liberian species, evergreen trees. The plant is tall, more than 10 meters high, the branches are thick and hard, grow obliquely upward, and the branches cork the fastest. The leaf blade is oval or round, the leathery leaf surface is glossy, the leaf end is closed, and the leaf margin is not corrugated. The fruit is large, oblong, the skin and pulp are hard and thick, the navel is large and protruding. The ratio of fresh fruit to dried bean is about 7: 10. The seed shell is thick, hard and tough, the seed coat is close to the seed kernel, the bean grain is large, and there are about 1300 beans per jin. The ripe fruit is scarlet. The branches bear less fruit, and the number of fruits per node is about 5-6. The main root of this species is deep, drought-resistant, wind-resistant, cold-resistant, light-resistant, and most susceptible to rust. The yield per plant is high and the yield per unit area is low. Strong flavor and strong irritation.

The main varieties are Esselsa (also called Charley), which was introduced from Guangxi to Hainan in the 1970s. The fruit is vigorous, but the seed coat is thick and hard like a small seed, the ratio of fresh to dry is 5: 8, and the quality is strong and slightly bitter. Deep roots, strong drought and cold tolerance, resistance to leaf rust and longicorn beetles