Workshop-Impact of Rootstocks on Mineral Nutrition (CEU Approved)

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.
Wednesday, August 10, 2016: 1:45 PM
Macon Room (Sheraton Hotel Atlanta)
Moderator:
Coordinators:
1:45 PM
The Influence of Apple Rootstock Genotypes on the Cultivar Tree Performance, Productivity, Fruit Quality, and Mineral Nutrition
Esmaeil Fallahi, University of Idaho Parma Research and Extension Center; Stefano Musacchi, Washington State University; Lee Kalcsits, Washington State University; Bahar Fallahi, Research Associate of Pomology, University of Idaho Parma Research and Extension Center; Bahman Shafii, Professor and Director of Statistical Program, University of Idaho
2:25 PM
Genetic Control of Mineral Uptake Correlated to Fruit Quality in Apples
Gennaro Fazio, USDA ARS; Michael A. Grusak, USDA-ARS; Terence Lee Robinson, Cornell University
2:45 PM
Soil Microbial Mediation of Mineral Uptake By Apple Rootstocks
Gregory Michael Peck, Cornell University; Ashley A. Thompson, Virginia Tech, Alson H. Smith AREC
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