Improve the efficiency of hybrid Prunus rootstock propagation to allow cost-effective tree production by commercial nurseries.
Various planting dates were applied to improve growth of the MP-29 rooted cuttings. Earlier planting helps with rootstock sizing although uniformly better sizing was not achieved.
Different grafting techniques using rooted and unrooted MP-29 cuttings, with variable planting dates and fertilization rates were also explored to improve rootstock growth. Small improvements were achieved in experimental setting and need to be tested for feasibility in nursery scale operations.