71-7-22

Legacy of the Michurinsk Breeding School

Rootstock 71-7-22 is one of the key developments of the Michurinsk State Agrarian University (FSBEI HE Michurinsk SAU). It serves as a classic example of a vigorous apple rootstock, originally developed by the legendary breeder Valentin Ivanovich Budagovsky. In regional horticulture, rootstock breeding has historically held a unique position, and this line is a testament to the academic approach toward ensuring the resilience of industrial orchards.

Agrotechnical Features

The core value of this rootstock lies in its high biological plasticity. Adapted to specific climatic conditions, 71-7-22 has proven itself as a reliable foundation for apple plantations. Its primary advantages include:

• Pathogen Immunity: Significant genetic resistance to apple scab and powdery mildew drastically reduces the fungicide load on orchards, allowing agronomists to optimize plant protection costs.
• Growth Vigor: As a vigorous rootstock, it develops a powerful root system, providing the tree with excellent anchorage and the ability to thrive on less fertile soils where dwarfing rootstocks would require intensive irrigation and structural support.
• Compatibility: It demonstrates predictable and stable graft union formation with the majority of popular apple varieties, which is critical for producing high-quality planting material in nurseries.

Today, rootstock 71-7-22 remains a sought-after solution for operations focused on orchard longevity and minimizing risks associated with fungal infections. It is a choice for professionals who value time-tested academic developments over short-lived trends in intensive horticulture.