Alocasia likes high temperature, humidity and shade tolerance

It is produced in tropical and subtropical regions of Jiangxi, Fujian, Taiwan, Hunan, Guangdong, Guangxi, Sichuan, Guizhou, Yunnan and other places in China. It is below 1700 meters above sea level. There are foreign countries from Bangladesh, northeastern India to the Malay Peninsula, the Indo-China Peninsula, the Philippines, and Indonesia. There are also cultivated.

It grows in tropical rain forests and wild banana forests at an altitude of 200-1100 meters. Likes high temperature, humidity, shade tolerance, not strong wind, not strong sunlight, suitable for large pot cultivation, the growth is very vigorous and spectacular, with a tropical atmosphere.

Divide method: During the growing season, the base of Alocasia often produces many seedlings. When they grow up a little (3-4 true leaves), they can be dug out and planted to become new plants.

Cutting method: The stems of calla lilies are very developed, and the plants that have grown for many years can cut a section of the stems as cuttings in spring, about 10 cm, and plant them directly in the pot soil or cut them on the cutting bed, and wait until they grow to 3-4 pieces. After the true leaves are transplanted into the field.

Sowing method: Wild or field alocasia often bears seeds, which can also be sown and propagated. It can be seeded in open field or on demand, and transplanted after emergence. Sow the seeds evenly on demand, then press down and cover with a layer of fine soil. Finally, use a fine-eye watering can to spray water, and cover it with a sunshade net. Before sowing, the soil should be kept moist, not too dry or too wet, sooner or later. Open the shade net for a few minutes to ventilate it and cover it again during the day. Remove the shade net as soon as the seeds give off seedlings. Plant when 3-4 true leaves are formed.

Bulb method: Dig out and grade the natural meristematic balls from the roots of alocasia, generally divided into two grades: 2 grams or more is grade 1, and less than 2 grams is grade 2. Before sowing, the land should be ploughed and leveled to make a Yang Qi with a width of 1 meter and a length of 20-30 meters, ready for sowing. Sowing density: the row spacing of the 1st grade species is 20 cm and the plant spacing is 8 cm; the row spacing of the 2nd grade species can be appropriately reduced. When sowing, it is necessary to ditch directional sowing on the prepared border. The sowing depth is 4-5 cm, and then the soil is covered and watered. After watering, the herbicide should be sprayed in time. Generally, 100-150 ml of 33% herbicidal emulsifiable concentrate per acre and 60-75 kg of water are used to spray evenly on the border with a sprayer. Finally, shade it with a sunshade net, open it in the morning and evening, and cover it during the day. Remove the shade net immediately after emergence.

Tissue culture method: callus can be produced from leaves, petioles, roots and inflorescences, and then the adventitious buds can be induced to multiply rapidly. Cut leaves, petioles, etc., sterilize with 0.1% mercury solution for 10 minutes, rinse with sterile water several times, cut into small pieces of 1-2 square centimeters, inoculate to n6+1 mg/L, 2,4-d , 4% sucrose agar medium. The temperature of the culture room was 28±2℃, and spherical callus tissue appeared on the explant incision after 20 days. The callus grows after 2 months, and it is best to transfer the callus to the agar medium of n6+naphthalene acetic acid 0.2 mg/L+cytokines 0.5 mg/L to differentiate shoots. Hormone-free medium can also differentiate and emerge. The callus of 0.6-0.8 cm can be differentiated into 10 seedlings on average after 2 months of culture, and more than 30 seedlings can be differentiated in 3 months. After a little extension of the culture period, the seedlings can take root.