A method for increasing production of hybrid seed of bee-pollinated crops, such as alfalfa and soybean at predetermined hybridity levels. Hybrid seed is produced using female and pollenizer plants at a selected ratio of female plants to pollenizer plants. The female plants and the pollenizer plants are intermingled in the hybrid seed production field. Prediction of percentage of hybridity at various female to pollenizer ratios allows for selection of a ratio of female plants to pollenizer plants to provide seed at a test percentage of hybridity. The percentage of hybridity may be increased post-harvest by employing techniques using seed properties such as size differential, color or density to remove a higher percentage of non-hybrid seed. The hybrid seed product is maximized at various hybridity levels. Planting according to subrows allows for separate harvesting of intermingled crops. Testing the hybrid seed product provides verification of percentage of hybridity.