Studies have shown a way to produce mixed seeds, especially mixed grain seeds, including male fertile plantations through a shorter (male sterile) female plantation (shorter than fertile plants) and higher (higher than sterile plants). This approach includes limiting the proportion of self-produced male seeds in the final seed stock. Especially,This method limits the development of male plant seeds since pollination to reduce or eliminate the proportion of male self-produced seeds in the final seed stock. This method limits the proportion of self-sufficient male seeds in the final seed stock. The production value of these seeds is lower than a threshold, preferably lower than a threshold, This enables her to reach a prescribed level of figs, and the male plant seed stock limit includes at least one pass,A tool that extends upward from the height of the smallest female plant, but below the height of the highest male proliferating plant, between the due date (preferably the end of the due date) and the harvest. The purpose of this tool is to prevent or reduce the normal growth of these male fertile plants above high latitude. The intersection of fertile male and female plantsIt includes mixing or cultivating seeds as sterile male seeds, and dividing fertile male plant seeds into different line seeds. This disposal tool is best able to use herbicides, preferably systematic herbicides, such as glyphosate.Se revela un método para producir semillas híbridas, en particular semillas de cereal híbridas, que comprende cruzar una plantación de plantas femeninas (masculinas estériles) mas cortas (mas cortas que las plantas fértiles) con una plantación de plantas masculinas fértiles mas altas (mas altas que las plantas estériles). El método comprende limitar la proporción de las semillas masculinas autofertilizadas en el stock final de semillas producidas. En particular, el método limita el desarrollo de las semillas sobre las plantas masculinas desde de la polinización a efecto
