What to do about false rooting in rose cuttings? Teach you effective prevention methods
Autumn is a great time for softwood cuttings of roses. At present, cuttings are still the main method of propagating roses. It can not only maintain the characteristics of superior rose varieties, but also has a high propagation coefficient, a short production cycle, low input and quick results, and is still adopted by many flower growers. However, in the process of rose cuttings, "false rooting" often occurs due to lack of experience or improper methods. That is to say, 5-10 days after the rose is cut, the axillary buds on the cutting have already sprouted or produced shoots and leaves, and it looks as if it has taken root, but soon it wilts and dies.
To avoid the occurrence of "false rooting" in rose cuttings, first of all, when selecting cuttings, do not choose branches with already sprouted buds as cuttings. Especially when using softwood cuttings in the growing season, attention should also be paid to choosing branches with a high degree of maturity and plump but unsprouted axillary buds as cuttings. If there is an urgent need to use branches with already sprouted axillary buds as cuttings, and the length is more than enough, the already sprouted section can be cut off before use. If it is a short branch, the already sprouted axillary bud can be cut off by 1/3 with a sharp knife, or the sprout can be completely removed, to inhibit its development and allow the lower axillary buds to sprout and produce shoots. In this way, it can be encouraged to first take root and then sprout and produce leaves.
Second, if rose cuttings are to first take root and then produce leaves, in addition to mastering suitable temperature and humidity, special attention should also be paid to making the temperature of the cutting bed medium 1-2°C higher than the air temperature. This can regulate the nutrients inside the cutting to shift to the lower end, first supplying the needs of rooting below, and can encourage it to first take root and then produce leaves.
Third, especially in autumn, which is a good time for softwood cuttings of roses, and at this time roses are also in the growing season, when using softwood cuttings, protecting the mother leaf and preventing it from falling off is very important. This is because the mother leaf at this time undertakes the task of supplying the nutrients needed for callus formation, adventitious root production, and axillary bud sprouting and leaf production during the cutting's survival process. Therefore, ensuring that the mother leaf does not fall off is even more important for softwood cuttings in autumn. It must be noted that cuttings must never be cut from diseased mother plants, and both the seedbed and the medium must be strictly disinfected and sterilized, and light should be provided as early as possible, and the seedbed should be well ventilated, to ensure an improved survival rate of rose cuttings.