耐抽薹春甘蓝新品种早春6号的选育及其特性研究

Breeding of a New Variety "Zaochun No.6" with Tolerance to Inmanturity Bolting in Cabbage

利用甘蓝自交不亲和系2P-42与48余份甘蓝父本杂交,培育出了优势明显的一代杂种“早春6号”,其具有生长势强、结球性好,叶球紧实、牛心形,平均单球重1 kg左右,抗黑腐病能力强,耐寒性好,并具有较好的耐先期抽薹能力,适合春季栽培,平均亩产2 500 kg以上,比对照争春增产10%左右。

A new variety, ＂Zaochun No. 6＂ of cabbage （Brassica oleracea L） was bred by hybridizing two self-incompatible lines, 2P-42 and 2P-04. The field experiments showed that the ＂Zaochun No. 6＂ had strong growth vigor and good heading character with compact and heart-shaped heads around 1.0 kg of the weight. The ＂Zaochun No. 6＂ also had strong resistance to black rot, good cold resistance, and inmanturity bolting tolerance, and so was suitable for cultivation in spring. Its yield per unit area increased by 10% over Zhengchun.