Post‐flowering night respiration and altered sink activity account for high night temperature‐induced grain yield and quality loss in rice (Oryza sativa L.)

High night temperature ( HNT ) is a major constraint to sustaining global rice production under future climate. Physiological and biochemical mechanisms were elucidated for HNT ‐induced grain yield and quality loss in rice. Contrasting rice cultivars ( N22 , tolerant; Gharib, susceptible; IR64 , high yielding with superior grain quality) were tested under control (23°C) and HNT (29°C) using unique field‐based tents from panicle initiation till...