Rose cutting propagation: Detailed explanation of rose branch propagation skills

Can roses be propagated by cuttings?As one of the most popular ornamental flowers, the propagation of roses through cuttings has always been a focus of gardening enthusiasts. With scientific and reasonable operation methods, even beginners can successfully achieve root growth. This article will analyze the key technical points of rose cutting propagation to help you master this practical propagation skill.Scientific principles of cutting propagationAnalysis of plant regeneration mechanismRose stems are rich in meristematic tissue, which can differentiate into roots under suitable conditions. Experimental data shows that when the air humidity is maintained above 70%, the formation rate of callus at the cutting site can increase by 40%.Detailed steps of rose cutting propagation1. Standard for selecting cuttingsChoose semi-lignified branches from the current year, with a diameter of 5-8mm being ideal. Retain 3-4 full buds, make a flat cut at the top and a 45-degree diagonal cut at the bottom to increase the water absorption area. Avoid branches with diseases and pests.2. Optimization of substrate formulaIt is recommended to use a mixed substrate of perlite: vermiculite in a 3:2 ratio, which has a porosity of 65% and is most conducive to root growth. Before use, pour boiling water to disinfect and cool before adding an appropriate amount of carbendazim to prevent fungal infections.3. Standard for cutting operationInsert the cutting to a depth of 1/3-1/2 of its length, maintaining a density of 5cm spacing. Spring cuttings should be done at an average daily temperature of 15-20°C, while autumn cuttings require measures for insulation.Three techniques for environmental controlTemperature and humidity managementBuild a simple arch shed to maintain 85% humidity, keeping the daytime temperature between 22-25°C and not lower than 18°C at night. Using an intermittent misting system is more effective.Light adjustment planInitially, shade 70% of the light and gradually increase it after callus formation. Use shade nets to create a scattered light environment and avoid direct sunlight burning the tender buds.Root activation strategyApply a rooting hormone containing IBA (concentration 500ppm) weekly, and spray 0.1% potassium dihydrogen phosphate solution on the leaves to shorten the rooting period by 7-10 days.After 20-30 days of careful care, when the new roots reach a length of over 3cm, they can be transplanted. Mastering the balance of temperature, humidity, and light, along with standard cutting operations, can keep the survival rate of rose cuttings stable at over 85%. It is recommended to regularly observe the condition of the cuttings and adjust the care plan in a timely manner.