当前,推广种植的塔穗蓖麻,混杂退化现象十分严重。特别是从外地购回的种籽质量更差,以至在同一块地里,植株高矮不齐,成熟早晚不一,红杆、绿杆、红绿杆皆有,黑花纹、褐花纹、红花纹同田,有刺种混有无刺种。大部分是花序变 At present, the promotion of planting castor beans, mixed degradation is very serious. In particular, the quality of seeds purchased from the rest of the world is even poorer. As a result, the plants are irregular in height and different in maturity. The red, green, red and green rods are all black, black, brown and red In the same field, there is a barbed seed mixed with no sting. Most are inflorescences