How to prevent the "False Survival Phenomenon" in rose cutting
Answering netizens' questions about rose propagation knowledge, how to prevent the "False Survival Phenomenon" in rose cutting, read on!
Autumn is a great time for cutting the tender branches of roses. Currently, cutting is still the main method of propagating roses, as it not only maintains the characteristics of superior rose varieties but also has a high propagation coefficient, short production cycle, low investment, and quick results, making it widely used by rose farmers.
However, due to insufficient experience or improper methods during the cutting process, the phenomenon of "False Survival" often occurs. That is, 5-10 days after rose cutting, the axillary buds on the cuttings have germinated or leaves have sprouted, making it look alive, but they soon wither and die.
To avoid the "False Survival" phenomenon in rose cutting, first, when selecting cuttings, do not choose branches with germinated buds. Especially when using tender branches for cutting in the growing season, it is important to select branches that are mature, with full axillary buds that have not germinated. If urgent use of branches with germinated axillary buds is needed, and there is sufficient length, the germinated part can be cut off and used again. If it is a short branch, the germinated axillary bud can be cut off by 1/3 with a sharp knife or the sprout can be completely removed to inhibit its development, allowing the lower axillary bud to germinate and sprout. This can promote root growth first and then leaf development.
Secondly, to ensure that the rose cuttings root first and then sprout leaves, apart from mastering the appropriate temperature and humidity, it is especially important to keep the temperature of the cutting bed medium 1-2 degrees higher than the air temperature. This can adjust the transfer of nutrients within the cutting to the lower end, providing for the root growth first, thus promoting root growth before leaf development.
Thirdly, especially in autumn, which is a good time for cutting tender rose branches, it is important to protect the mother leaves and prevent them from falling off during the growing season. The mother leaves are responsible for providing the nutrients (G-Y) needed for the formation of callus, the production of adventitious roots, and the germination of axillary buds during the survival process of the cuttings. Therefore, ensuring that the mother leaves do not fall off is especially important for autumn cutting. It must be noted that cuttings should never be taken from diseased parent plants, and the bed and medium must be strictly disinfected and sterilized, and should be exposed to light early, with good ventilation to ensure an improved survival rate for rose cuttings.
It is currently the time for autumn cutting of tender rose branches, so make the necessary preparations early and operate carefully according to the above requirements to improve the survival rate of rose cuttings.
(Source: 'Rural Knowledge' Issue 2004.21)
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