Written by Maggie
Jan 09 2021
Common hop is not a Common ornamental flower, we often see "Common hop" in the beer ingredients list is this plant. It is an indispensable raw material for brewing beer. In China, it has a long history of cultivation. Common Hop has many propagation methods, including seed propagation, cutting propagation, bud propagation and so on.
When seed is used for propagation, it is mainly used for cross propagation of Common Hop. Common Hop's seed coat is relatively hard and poorly developed, so its germination rate is relatively low, only about 10%. Therefore, we should choose plump seeds before sowing, and then soak them in 35 degrees warm water and put them in a 24 degree environment for accelerating germination. When the average temperature reaches about 20 degrees, it can be sown. After sowing, we should pay attention to covering a layer of fine soil, often watering to keep the soil moisture. After about 4 days, it can be unearthed. Seedling unearthed to do shading measures, and then in the middle of the seedling to apply fertilizer twice or so.
However, the Common Hop seed germination rate is very low, so the sowing propagation method is not generally used.
Cutting propagation of underground stem is relatively simple in the Common Hop propagation method, and it is also the most commonly used method. When cutting buds in Common Hop every year, sturdy, disease-free and insect-free underground stems with a length of about 12cm, a thickness of about 1.8cm and smooth cuttings are selected for direct cuttings. If it can not be cut in time, then it should be valued, in a high dry place to dig a deep 70cm ditch. Then the seedlings will be bundled into small handfuls according to specifications and varieties, and then do a good job of classification and identification into the ditch for value. Pay attention to water loss and temperature if transportation is required.
Greenwood cutting is also a commonly used propagation method in Common Hop, and the propagation coefficient of green branch cutting is relatively high. Greenwood cutting propagation method of Common Hop can be carried out in the environment of greenhouse and seedbed, but now the domestic application is not very extensive, generally used in foreign countries more. The experiment shows that the survival rate can reach more than 95% if the cuttings with two buds are selected from May to June. Or you can postpone it for a month and select green shoots with one bud node. If treated with indole acetic acid, the rooting rate is also very high.
When cutting the buds, we should choose to keep about 8-12 centimeters long, full and robust and free from diseases and insect pests with the right amount of fibrous roots buds. Planted directly in the nursery with well-controlled row spacing. When planting the buds, all the buds should be planted into the soil, and the distance between the top of the buds and the ground should be controlled at about 3 centimeters. After planting, to the appropriate soil, and then watering, keep the soil moist, and it can emerge under normal circumstances 2-3 weeks. After the emergence of seedlings according to the seedling management requirements, do a good job of management.
Common Hop usually propagates best in April and blooms in July and August. Cultivation soil had better be soft, fertile, deep soil with better air permeability. Common Hop should be cool and cold resistant, and the optimal temperature is 14-25℃. The Flower is very fond of light, and prolonged exposure to the sun will promote its healthy growth. It is worth noting that the Common hop must not be short of water during the growing season and before winter, otherwise it will cause adverse effects on its growth.
Common Hop has many propagation methods, which should be selected according to one's own planting habits and methods. This article is for reference only, and I hope to be helpful for you!