Lodging reduces yield of rice by self-shading and reductions in canopy photosynthesis

摘要: Abstract The adverse effects of lodging on light interception, canopy photosynthesis and yield were evaluated during grain filling in modern irrigated rice deepwater (DWR) cultivars. Lodging, i.e. the reduction plant height due to bending shoot from vertical, occurred canopies DWR growing field under tropical conditions ranged 0 42% which held erect using nets; this was associated with reductions up 2 t ha−1. A 1% for every 2% when data different seasons, cultivars, treatments plotted together. Lodging reduced by 75% (75% lodging) resulted a suboptimal stratified interception canopy. In lodged non-lodged canopies, more than 80% intercepted within top 5 cm 80 respectively. 60 relative respectively, gave predicted equivalent measured yield. Data are used support hypothesis that largely result self-shading leaves panicles.