Improving spikelet production efficiency crucial for unleashing yield potential in rice
Peer-Reviewed Publication
Updates every hour. Last Updated: 29-Oct-2026 16:16 ET (29-Oct-2026 20:16 GMT/UTC)
Spikelet production efficiency (SPE) – the number of spikelets produced per unit of vegetative organ dry weight at the spikelet differentiation stage – can boost rice grain yield and harvest index without compromising grain filling or grain weight, particularly under high-yielding population conditions.
Unmanned aerial vehicle (UAV) light detection and ranging (LiDAR) was used for high throughput maize plant height phenotyping in 270 doubled haploid (DH) lines across multiple stages and environments. Single plant scale estimation outperformed row scale, with R² values of 0.67 vs. 0.56 and RMSE values of 0.12 m vs. 0.17 m, respectively. Using inclusive composite interval mapping, we identified 12 and 20 QTLs for plant height in two DH populations. These results support the feasibility of UAV-based QTL mapping and candidate gene discovery in maize.
Zhonghua 11 and Taichung 65 exhibit distinct physiological and molecular responses to brassinosteroids despite their close japonica relationship.
A near-isogenic line, d61-zh11, was developed to transfer the classical brassinosteroid (BR)-insensitive mutation into a modern functional genomics background.
d61-zh11 provides a standardized reference mutant for the reproducible and system-level dissection of BR signaling in rice.
Organic light-emitting diodes (OLEDs) have become a standard in modern devices with incredible contrast and sleek designs. While initially an expensive luxury, OLEDs are gradually becoming more financially accessible as the technology improves. Now, researchers at the Institute of Transformative Bio-Molecules (WPI-ITbM) at Nagoya University and the Institute for Advanced Study at Kyushu University have combined quantum chemistry with machine learning to identify new materials for blue OLEDs to incorporate in next-generation ultra-high-definition displays. Their research was published in Angewandte Chemie International Edition on July 21, 2026.
Researchers developed a diffusion-based artificial intelligence system that learns ship navigation directly from real-world voyage data rather than relying on optimization algorithms. Trained on a vessel in Japan's busy and geographically complex Seto Inland Sea, the AI learned to balance multiple objectives simultaneously, including collision avoidance, efficient routing, and speed control. The AI also learned local navigation practices, such as staying within designated traffic lanes, without being explicitly programmed to do so. The study demonstrates that diffusion-based AI can capture human-like navigation behavior from real-world data, offering a promising new approach to autonomous ship navigation in complex maritime environments.
Scientists analyzed phytoliths, silica microfossils from plants, collected from archaeological pits dug in Cloggs Cave, a special place of the GunaiKurnai First Nations people. Almost all (up to 97%) of the phytoliths came from grasses of a range of species. Up to 18% of the phytoliths were melted or burnt, which means that they were purposively carried in by people. The authors concluded that the Old Ancestors selectively brought in grasses for burning. Approximately 2,000 years ago, grasses were burnt around a small standing stone used to perform magic. Ethnographers and oral traditions have reported that such rituals using ash from burnt plants took place across GunaiKurnai Country during the 19th century.
Researchers systematically evaluated the rationality of eight traditional inert powders to suppress accumulated nano-aluminum dust layers generated by additive manufacturing, revealing severe hidden fire risks of conventional inerting methods and offering theoretical guidance for dust explosion prevention in 3D printing metal processing. The study, published in Defence Technology, tested ignition sensitivity and flame spread characteristics of nano-aluminum dust mixed with three categories of inertants, and clarified distinct combustion-promoting mechanisms at low-to-medium mass fractions.