Vegetative propagation is the only way to multiply tree individuals with the favourable genetic combination for practical horticulture or forestry. Cutting techniques are one of the methods used most often for propagating woody plants on a commercial scale, especially because they are applicable for several important forest trees. Problems in cutting production are reality for many species. Most frequently, obstacles are due to difficulties in rooting or poor root systems. Attempts to improve rooting have covered the optimization of physical rooting environment, the application of growth regulators, as well as the inoculations with micro-organisms, including Agrobacterium strains.
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