|The Rice Seed|
|Reproductive Parts of the Rice Plant|
|Hybrid Rice Parental Lines|
|Seeding of Parental Lines in the Seedbed|
|Synchronization of Flowering|
|Different seeding times|
|Selection of CMS Multiplication and Hybrid Seed Production Fields|
|Management of Seed Production Plots|
|Adjusting Flowering Date|
|Flag Leaf Cutting|
|Gibberellic acid application|
|Processing Hybrid Rice Seed for Market|
Rouging is the removal of undesirable rice plants from hybrid seed production plots.
Undesirable rice plants are plants in either the A line or R line rows that differ from plants that are true to type. They may be volunteer plants from an earlier crop or off-types.
Rouging prevents off-types from cross pollinating with true-to-type A line plants and lowering the purity of the hybrid seed.
Rouging ensures that the hybrid seed produced will be a cross between only the A line and R line parents. That in turn ensures that the commercial plantings of the hybrid seed produced will give high yields.
High purity hybrid seed will increase your reputation as a seed grower.