摘要
四川盆地的芥菜分布、栽培面积、变异类型和品种数量均居全国之首。以盆地为中心,周围各省区变种和品种数量有明显递减趋势,且多数变种有由盆地向周围扩散的历史痕迹。但是,史载四川盆地芥菜栽培晚于黄河流域和长江中下游地区,且盆地内既未发现芥菜基本祖种之一——黑芥（Brassica nigra）,也未发现野生芥菜（Brassica juncea）。由此,笔者认为,四川盆地是芥菜的次生多样化中心,并就该中心的成因提出了见解。
The vast in distribution range, planting area and the quantities of variant Patterns and culti-vars of Mustard (Brassica juncea) in Sichuan Basin ranked first in the whole China. The quantities of the varieties and cultivars obviously showed the declining tendency in the other provinces arund Sichuan Basin as a centre. There was the historical trace which Proved that the most varieties of mustard spread out from tlere. But the historical record of the planting of mustard cultivation in Sichuan Basin was later than that in the Yellow River valley region and the middle and lower reaches of the Yangtze River valley, and black mustard (B. nigro) and wild mustard (B. juncea) haven't been found on there yet. So the researchers propsed that Sichuan Basin is a subalternate diversified centre of mustard, and discussed the formative reasons.
出处
《西南农业学报》
CSCD
1990年第3期5-8,共4页
Southwest China Journal of Agricultural Sciences
基金
该研究为国家"七.五"攻关项目"作物基础及基础性研究"专题
关键词
芥菜
多样化中心
四川
品种分布
Mustard (Brassica juncea Coss) , Variety distrbution. Subalternate diversified centre
Siahuan Basin,
