Jerusalem artichoke (Helianthus tuberosus L.) (sunchoke) presents a resilient and low-input crop alternative with potential for both biomass and tuber production. However, a comprehensive understanding of varietal performance in specific environments like Ohio is essential to unlock its full agricultural potential. This study evaluated the growth and yield performance of five Sunchoke varieties (Beaver Valley, Dwarf Sunray, Jack's Copperclad, Supernova, and White Fuseau) in Ohio, during the 2024 growing season. Plant height, tuber number, root system weight, and morphological characteristics were assessed. Variations were observed among the varieties in terms of growth and yield. "Dwarf Sunray" exhibited the highest growth rate, while "Jack's Copperclad" had the lowest. "White Fuseau" yielded the highest tuber count and weight, approximately nine times more than "Jack's Copperclad". Tuber production was positively correlated with root system weight. Varieties also differed in branching patterns, flowering time, tuber shape, and tuber color. This study provides preliminary data for selecting varieties suitable for further research and evaluation in Ohio. The study emphasizes the importance of considering root system development for improved tuber yield and suggests future research should focus on the genetic basis of trait variations and varietal performance under diverse conditions.
