Seeds were sown in the seedling nursery on 23 June in 2010
and 17 June in 2011, and the seedlings were transplanted to two
experimental fields that were under flooded and aerobic conditions
on 12 August in 2010 and 30 July 2011. The rice genotypes
were arranged in a randomized block design with three replications.
Each plot size was 12 and 9 m2 for the flooded and aerobic
conditions, respectively. The planting density was 25 plants m−2 in
both years. To eliminate the severe transplanting damage in the
aerobic condition, the surface water was flooded until 2 weeks
after transplanting and then drained. For the aerobic condition, any