What causes the black stem phenomenon in rose cutting?
This article will provide you with a detailed explanation of the reasons for the black stem phenomenon in rose cutting. Let's learn about it together below.
What causes the black stem phenomenon in rose cutting?
The black stem phenomenon in cuttings of roses may be caused by factors such as a non-ventilated cultivation environment, unsterilized soil, excessive watering, and the selection of unsuitable cuttings. Therefore, when cutting roses, it is important to use loose, breathable, and clean soil for cultivation, keep the soil moist without overwatering, and select healthy branches for cuttings.
Cutting is a commonly used method of propagation for roses. If the matrix is not breathable or improperly configured, the black stem phenomenon in rose cuttings can occur. Therefore, it is essential to choose the right soil, preferably loose, breathable, and well-draining soil, to effectively avoid black stems.
If the soil is not disinfected before planting, the black stem phenomenon may occur after rose cutting. Therefore, it is necessary to promptly disinfect, such as using potassium permanganate solution or carbendazim solution, to effectively kill the pathogenic bacteria and pests in the soil.
Excessive watering after rose cutting can lead to long-term waterlogging in the potting soil, ultimately causing the black stem phenomenon. Therefore, proper watering measures must be taken. If the potting soil is relatively dry after cutting, water moderately to maintain a slightly moist environment; if it is not dry, there is no need to water.
During the rose cutting process, selecting inappropriate cuttings, such as unhealthy growth, sprouting branches, infected wounds, or pests and diseases, can lead to the black stem phenomenon. Therefore, it is best to choose cuttings that are healthy growth or flowering branches from the current year.
The above-shared content about the causes of the black stem phenomenon in rose cutting is hoped to be helpful for green plant enthusiasts!