Germplasm Resource Innovation and Breeding Direction of Castor
Castor is dicotyledonous annual or perennial herb,which is originally produced in eastern Affica,and successively introduced to Asia,America and Europe.Because of wide adaptability and high survival rate,it is widely grown in various countries,being one of the world's ten most important oil crops.Castor has very wide application range,which is recognized as the most promising plant oil in deep processing instead of oil.It has very high development and utilization value,and has been paid attention by a large number of researches.However,the current international castor seed breach is serious,so the development and utilization of castor industry is restricted.Castro breeding research in China began in early 1950s.Currently,castor breeding technology and variety yield level in China have reached international advanced level.Although great improvement has been made,there still have space in many ways.Based on long-term castor breeding practice,the paper discusses the feasibility and importance of using wild resources,native variety and imported varieties to improve and innovate germplasm resources of castor,and breed disease-resistant inbred lines and hybrids.According to regional characteristics of castor cultivation in China,the main breeding objectives including high yield and high oil,suitable for mechanized cultivation,high resistance and strong stress tolerance are put forward in the paper.
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