What is rouging and why it is necessary?

  • 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.