Protection and Evaluation of the diversity with regard to local varieties in Brassica campestris L.

长野县的本地品种“Outaki Kabu”由Outaki村15个社区的65名农民培育和生产种子。“Outaki Kabu”是一个宝贵的案例，以调查有关物质化，维护和专业化。2003年5月对种子生产情况进行了调查。因此，种子生产的领域相互毗邻，并靠近家庭附近，易于管理。2003年9月在调查田中播种了从大泷村采集的65株“大泷卡布”。以农业部的品种特性表为依据，通过生育期调查，对欧塔基卡布的品种特性进行了研究。聚类分析将65个菌株大致分为3个类群。3个类群所含的菌株在地理上没有必然的分类关系，同一群落中的菌株也不相同。以65个品种的‘大泷卡布’种子为材料，研究了低温对种子春化的影响。结果表明，65个菌株中有5个菌株未抽薹，14个菌株混有抽薹植株和未抽薹植株。菌株间的差异可能不是选择的对象。

The local variety ‘Outaki Kabu' originated Nagano Pref. is cultured and producted seeds by 65 farmers in 15 communities of Outaki-mura. ‘Outaki Kabu' is a precious case to investigate about the materialization, maintenance and specialization. In May 2003, the situation of seed production was investigated. As the result, the fields of seed production were adjoining each other mutually, and near the home neighborhood where were easy to manage. 65 strains of ‘outaki Kabu' collected from the Outaki-mura were sown in the investigation field September 2003. The characteristics of ‘Outaki Kabu' was investigated through growing terms on the basis of the characteristic table the Ministry of Agriculture. 65 strains ere classified to 3 groups largely with the cluster analysis. The strain included to each 3 groups was not necessary classified related geographically and differ also in same community. The correspond of the low temperature on the seed vernarization was investigated in 65 strains of ‘Outaki Kabu'. As the result, 5 strains out of 65 strains were not bolted and 14 strains mixed with bolted and non bolted plants. The difference between the strains was admitted among the characteristics were not the objects of selection probably.