Objective(s):
During this workshop we will explore the influence of rootstocks on the uptake and availability of mineral nutrients in tree-fruit crops. The objective is to inform ASHS attendees about the latest advances in understanding the physiological and genetic mechanisms that control rootstock performance. Speakers will also address the impact of the soil-root and rootstock-scion interfaces. Additionally, presenters will discuss novel tools and advances in production recommendation that can be implemented by tree fruit producers.

Over the past few decades there have been tremendous increases in tree-fruit orchard productivity. New rootstock genotypes have played a crucial role in these advances and have allowed for the development of highly efficient orchard production systems that integrate shorter tree heights with increased light capture orchard systems and greater planting densities, all while improving crop quality. Our understandings of the physiological and genetic mechanisms that allow rootstocks to be highly productive are tied to their ability to uptake and translocate minerals from the soil. Through this colloquium, we will delve into the current research on the relationship between rootstock genotypes and mineral nutrition of fruit trees. Both applied and basic research studies will be presented.