Low root temperature at flowering reduces rice yield by impairing photosynthetic assimilate partitioning and antioxidant defense more than low canopy temperature and drought in different rice genotypes.

Abstract excerpt

Rice is highly sensitive to low temperature and drought during flowering, which threaten yield and quality. While extensive research has elucidated the molecular mechanisms of chilling tolerance, particularly during the seedling stage, and has characterized transport limitations during grain filling, the specific physiological damage caused by root-zone chilling during the critical flowering stage and how this...

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