3.3 Grain yield and yield components under normal temperatures at flowering
Grain yield and yield components were further examined in Joetsu, Los BaƱos, Coimbatore, and Subang (Table 4; Table S3), where average daily maximum temperatures at flowering was in the normal ranges below 35.5oC (Table 1). Grain yield and panicle number per plant (PN) was not significantly different between IR64 and IR64+qEMF3 , but spikelet number per panicle (SN) was significantly larger and 1000GW was smaller in IR64+qEMF3 (Table 4; Table S3). Smaller 1000GW in IR64+qEMF3 was mainly due to the smaller length and width of grains compared to IR64 grains (Table S4). Percentages of filled grains (PFG) was similar or slightly higher in IR64+qEMF3 on an average, but the trend was not the same on all locations (Table 4; Table S3).