Maternal Temperature Imposes a Longer‐Term Effect on Seedling Emergence Than Does Genetic Variation in Seed Dormancy

• DOI: 10.1111/pce.15525
• Publication Date: 2025-04-04T09:45:20Z
• Authors: Toshiyuki Imaizumi; Kentaro Ohigashi; Akira Koarai
• Keywords: Maternal effect

Germination represents the first major transition in plants, and seed dormancy influences germination timing. However, mechanism by which variations due to genetic variation or maternal environment influence timing has not been studied depth. In this study, effects of temperature during maturation (maternal temperature) on weedy rice seedling emergence a field were evaluated. The experiments repeated for 4 years using seeds collected from groups, represented different degrees dormancy. was evaluated via yearly temperature. Genetic had greater effect unfavourable seasons than favourable seasons. A higher delayed notable impact global warming confirmed over past 15 years, will continue even under sustainable CO2 emission scenario. Maternal have long-term at relatively high temperatures, these may increase warming.