Donaldson is an early maturing fruit which produces juice similar to the commercial Hamlin. Early evaluations have highlighted its excellent flavor, deep orange color, and high juice content and typical orange-like flavor -qualities that are especially important for creating high-quality, consumer-pleasing orange juice. In addition to its sensory appeal, there is optimism surrounding the tree's vigor and potential tolerance to citrus greening, or Huanglongbing (HLB), a devastating disease that has severely impacted Florida's citrus groves.
This rediscovery comes at a critical time, as the citrus industry continues to explore innovative solutions to maintain high-quality juice production while overcoming the devastating effects of citrus greening disease. With its promising traits, the 'Donaldson' sweet orange could contribute to enhancing juice blends and providing a fresh marketing angle for producers eager to offer premium products to consumers.
Moving forward, researchers will continue evaluating 'Donaldson' for its horticultural performance, disease resistance, and economic viability. Industry leaders and growers are optimistic that this forgotten variety could play an important role in the future of Florida orange juice.
The full story can be found on the ASHS HortScience electronic journal website at: https://doi.org/10.21273/HORTSCI18351-24
Established in 1903, the American Society for Horticultural Science is recognized around the world as one of the most respected and influential professional societies for horticultural scientists. ASHS is committed to promoting and encouraging national and international interest in scientific research and education in all branches of horticulture.
Comprised of thousands of members worldwide, ASHS represents a broad cross-section of the horticultural community - scientists, educators, students, landscape and turf managers, government, extension agents and industry professionals. ASHS members focus on practices and problems in horticulture: breeding, propagation, production and management, harvesting, handling and storage, processing, marketing and use of horticultural plants and products. To learn more, visit ashs.org.
