【摘要】 黑龙江省的大白菜共有6个地方品种,7个引入品种,24个育成品种,将其中的杂种一代分解为亲本后,共有29个大白菜育成品种(系)。这些育成品种(系)共可追溯到13个祖先亲本,多数情况下,一个祖先亲本只衍生出一轮育成品种,仅有少数品种再次衍生下一轮育成品种,而无第三轮衍生的现象。所涉及的13个祖先亲本,仅有3个为当地农家品种,其余均为引入品种。更多还原

【Abstract】 There are altogether 6 landraces, 7 exoti introductions and 24 released cultivars of Chinese Cabbage in Heilongjiang. There are 20 released cultivars (strains) after resolved the hybrids among them into ancetors. These released cultivars (strains) can be traced back to 13 ancestors. Generally one ancestor derived one cycle of released cultivars. Only a few ancestors derived next cycle and no third cycle. There are only 3 local farm cultivars among the 13 ancestors. The others are exotic introductions.更多还原