Factors Determining Genotypic Variation in the Speed of Rice Germination

Rapid germination is important for both direct seeded rice in the field and production of germinated brown healthy food. This study aims to evaluate genotypic differences speed identify characteristics that determine speed. Seven experiments were conducted (i) impact dehulling on water absorption germination, (ii) variety consistency across crops grown three years, (iii) effect grain size. Germination paddy dehulled was significantly correlated with moisture content at early stages soaking, however significant interaction genotype type (paddy rice) existed varieties differed their response dehulling. from exposed deficit slightly slower than those higher supply. Sherpa/IRAT109 genotypes smaller size tended germinate faster larger grain, no among diversity set varieties. It concluded ranking consistent years availability conditions, barriers hull pericarp determinants The existence variation has management implications crop establishment food processing.