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高产、优质、多抗棉花新品种321是河北石家庄农科院与中科院遗传所协作,用陆地棉、海岛棉、野生瑟伯氏棉三个棉种进行远缘杂交,通过激素处理,杂种幼胚离体培养、染色体加倍使其恢复育性,再经回交转育,南繁北育、异地鉴定,历经近20个世代选育而成。1993—1994年在全国黄河流域棉花品种区域试验中,两年冀、鲁、皖、豫、晋、陕、苏等7省35点次,平均子棉、皮棉、霜前皮棉均居所有参试品种第一位,分
The new cotton variety 321 with high yield, high quality and multiple resistance was in longan cross hybridization with three cotton cultivars, Gossypium barbadense, Gossypium barbatum and Wild Cerberus asiatica, cooperated with Hebei Academy of Agricultural Sciences, Shijiazhuang Academy of Agricultural Sciences, Hebei Province. Through hormonal treatment, In vitro culture, chromosome doubling to restore fertility, and then by backcrossing, South Fan North education, off-site identification, after nearly 20 generations of breeding. From 1993 to 1994, in the regional trials of cotton varieties in the Yellow River Basin in the country, all sub-cottons, lint and frost-lint averaged 35% of the total in all seven provinces including Hebei, Shandong, Anhui, Henan, Shanxi, Shaanxi and Jiangsu in the two years Variety first, points