Management of Robinia pseudoacacia cv. ‘Üllői’ – ‘Üllői’ locust

– Black locust ( Robinia pseudoacacia L.) is the most widespread introduced tree species in Hungary. Though it covers 24% of the country’s total forest area, the wood industry has difficulties processing large quantities of this poor quality wood. To address this issue, the Hungarian Forest Research Institute (FRI) initiated a selective breeding program designed to improve black locust wood quality. The breeding was based mainly on the small, elite breeding populations of the so called “ship mast” locust, which possess solid, straight, fork-free stems. Mono- and multi-clonal cultivars were developed and cultivar comparative and growing trials were established. Among the selected cultivars, the cultivar ‘Üllői’ locust ( Robinia pseudoacacia cv. ‘Üllői’ ) proved one of the best. As a result, a comprehensive review on the management of ‘Üllői’ locust in Hungary was compiled. This study provides a contribution to the improvement of growing technology used for selected black locust cultivars.