Performance of Six Generations on Two Rice Crosses under Submergence Stress and Non-stress Conditions

Submergence tolerance has long been regarded as an important breeding objective for rain-fed lowland and deep water rice area. Despite this recognition, there limited success in developing with improved submergence Africa. The present research was aimed at assessing performance of crosses under stressed non-stressed conditions Nigeria. Six generations the were evaluated optimum submerged a complete randomized block design three replications. screening performed controlled that allowed flooding depth 1.0 meter period 14 days. results revealed significant difference among two evaluated. observed survival rate (%) Cross I ranged between 0.00% - 100% while II, it 95.24%. Phenotypic Coefficients Variation (PCV) Genotypic Coefficient (GCV) 100 grain weight moderate to high conditions. Low PCV GCV coefficients variation width length both crosses. High heritability (0.96% respectively) genetic advance percentage mean recorded yield variability however, advancement segregating coupled adequate selection criteria could lead identification superior stable genotypes farmers’ use.