Bringing rice back to Hawaiʻi: Japanese cultivars yield high-quality grains in just three months
Peer-Reviewed Publication
Updates every hour. Last Updated: 22-Oct-2026 23:16 ET (23-Oct-2026 03:16 GMT/UTC)
An international collaboration between Tokyo University of Agriculture and Technology and the University of Hawaiʻi at Mānoa has successfully grown premium Japanese rice on Kauaʻi using water-saving upland methods. The rice matured one month faster than in Japan while achieving comparable yields and producing larger, higher-quality grains. This research demonstrates the potential to reestablish local rice production, enhance food security, and offer a sustainable farming model for water-scarce island regions.
Starting from syringic acid, a natural phenolic acid with favorable safety and biodegradability features, Prof. Runjiang Song's team at the State Key Laboratory of Green Pesticide, Guizhou University, designed a series of derivatives by combining the syringic acid scaffold with an allicin-inspired disulfide unit and a 1,3,4-oxadiazole moiety. Among 34 derivatives, compound C31 emerged as the most potent anti-Xoo molecule, with an EC50 of 0.86 μg/mL. In rice pot experiments, C31 achieved 59.37% control efficacy against bacterial leaf blight, outperforming syringic acid and the commercial reference thiodiazole copper in this study.
A study examining air quality and respiratory health in communities surrounding the Salton Sea in Southern California shows how environmental conditions, poor housing quality, and structural inequities combine to place children at greater risk for respiratory illness.
Researchers combined forest inventory data, satellite observations, and machine learning to estimate tree density across North America and evaluate the uncertainty of those estimates. The study suggests the continent contains between 339 billion and 514 billion trees with DBH>10 cm and shows that estimates can vary substantially depending on forest definitions and tree size thresholds. The framework provides a consistent approach for large-scale forest monitoring, biodiversity assessment, and carbon accounting.
Researchers from the University of Georgia and the USDA Forest Service evaluated four strategies for predicting future tree diameters for "unobserved" species. They found that all four strategies can produce reliable predictions. However, approaches that incorporate species-specific information, such as post-hoc calibration using at least one repeated measurement or grouping rare species into an "others" category, tend to provide more precise results. The study offers practical guidance for forest managers working in species-rich tropical forests, where rare and unobserved species are common.
China's massive reforestation effort has transformed more than 77 million hectares of land, but new research shows that planted forests face different drought risks from natural forests. Using satellite observations from 1990 to 2024 and machine learning analysis, researchers found that planted forests are more vulnerable to rapid-onset flash droughts but less prone to prolonged slow droughts. The differences are linked to forest structure: natural forests have greater species diversity, more complex canopies, and deeper root systems that help buffer sudden water shortages, while planted forests are typically younger and less diverse. The findings highlight a trade-off in drought resilience and suggest that future forest management should prioritize mixed-species, structurally diverse forests to better withstand increasing climate extremes.