A biological trait of apple trees that determines tree dimensions and the rate of vegetative mass development, depending on the combination of scion and rootstock. It serves as the basis for selecting planting schemes, pruning intensity, and managing the balance between vegetative growth and fruiti…
In the reference
1 038
varieties
crop Apple,
where this is mentioned in the description.
Apple tree vigor is assessed through biometric indicators, such as tree height, trunk diameter, crown volume, and shoot formation intensity. In breeding and variety testing, a scoring scale is also used, where a variety is compared to control samples on an identical rootstock, taking into account the specifics of root system development and photosynthetic potential.
In agronomy, trees are classified into vigorous, semi-vigorous, and dwarfing, including specialized spur-type varieties with shortened internodes. This trait directly dictates orchard planting density and pruning technology, as excessive vegetative growth often leads to delayed fruit bearing, poor crown illumination, and reduced fruit quality.
General information about the subject — on the page
Vigor.
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.