一、了解蓖麻品种特性和原产地的生态条件在搜集引进蓖麻品种和育种材料时,首先必须掌握有关蓖麻种质资源的情况。详细研究分析希望引人材料的选育历史气生态类型和原产地的自然条件等。引进的蓖麻品种应首先根据生育期决定取舍,考虑引入品种在生育期方面是否适合 First, understand the characteristics of castor varieties and the ecological conditions of origin In the collection of imported castor varieties and breeding materials, we must first master the castor germplasm resources. A detailed study of the hope of introducing materials breeding history and ecology of the type of origin and natural conditions. The introduction of castor varieties should first be determined according to the growth period choice, consider the introduction of varieties in the growth period is suitable