Effects of High Temperature at Grain Filling Stage on Grain Quality and Gene Transcription in Heat-Sensitive Versus Heat-Tolerant Rice Cultivars

Agronomy, Год журнала: 2025, Номер 15(3), С. 668 - 668

Опубликована: Март 7, 2025

There are many factors affecting rice yield and quality during cultivation, including temperature, light, water, fertilization, among which high temperature (HT) is one of the main quality. However, less known about effects potential mechanisms different durations HT stress grain filling stage on In this study, differences in starch rapid viscosity analyzer (RVA) characteristics eight indica varieties under high-temperature treatment times were studied by simulating an artificial climate chamber. The prolonged duration leads to overall deterioration milling quality, appearance cooking rice. impact RVA more complex mainly related varieties. Among them, R313 stable. It worth noting that there a significant difference sensitivity 8XR274 5W0076 duration, with 8XR272 being sensitive opposite. We selected these two for transcriptome analysis after 14 days found number differentially expressed genes (DEGs) was significantly than 5W0076. DEGs enriched pathways carbohydrates, while photosynthesis. Our study provides new perspective molecular response as well high-quality breeding temperature.

Язык: Английский

Coupling coordination and obstacle factors of cultivated land system resilience and new urbanization

Frontiers in Sustainable Food Systems, Год журнала: 2025, Номер 9

Опубликована: Апрель 28, 2025

The global food crisis is becoming increasingly severe, highlighting the need to enhance cultivated land system resilience improve utilization efficiency and strengthen its ability withstand external shocks, ensuring security. This study examines 13 major grain-producing areas in China clarify coupling coordination mechanism between new urbanization. An evaluation constructed, development levels are assessed using entropy method, degree model, obstacle model. main results as follows: (1) Cultivated urbanization China’s have exhibited a steady upward trend. (2) has increased from 0.5512 0.6788. (3) primary factors at criterion layer output resilience, scale To urbanization, policies should be reinforced, of agricultural labor productivity improved, planning optimized, regional linkages enhanced.

Язык: Английский

Spatial heterogeneity and driving factors of cropland expansion trajectories in the Yangtze River Economic Belt, China

Regional Environmental Change, Год журнала: 2025, Номер 25(2)

Опубликована: Май 13, 2025

Язык: Английский