In the RFD, flooded soil pH was 0.3 units higher than non-flooded soil and larval survival was the lowest in the longest flooded treatment (P < 0.05).
Their research proved that coleoptiles of flooding-tolerant cultivars grew faster and longer in flooded soil.
Many factors contribute to the success of seedling establishment in flooded soil.
On chromosomes 1 and 3, two QTLs for coleoptile length were identified under flooded soil condition (Zhou et al. 2007).
Seedling survival in flooded soil is an important trait for the success of a direct-seeding system.
Similarly with HDR = 0.5, it reduced by 10 16% in sticky soil, 6 17% in wet soil and 12 26% in flooded soil.
Most of the crop is grown in flooded soil, which lacks oxygen and is an ideal home for methane-producing microbes.
With HDR = 0.25 the ploughing resistance was reduced by 2 7% in dry soil, 18 36% in sticky soil, 17 33% in wet soil and 15 28% in flooded soil.
In both treatments, tap water was used, and effects on emergence, seedling survival and growth in flooded soil were monitored.
Most benefit was to lines with a superior ability to germinate in flooded soil even when untreated.
