2. One ear segregating for y3 showed female elimination for this condition. The cross made was Y1y1Y3y3Y5Y5 × y1y1y3y3y5y5 and the expected ratio 1 orange (Y1y1Y3y3) : 3 white (Y1y1y3y3, y1y1Y3y3, y1y1y3y3) was changed to 1 orange : 1 white (81 orange seeds : 60 white seeds). The orange seeds sowed were selfed and gave in all cases ears segregating for 9 orange : 7 white. The white seeds gave normal plants which when selfed produced ears segregating for albescent seedlings.