大葱三交种辽葱6号的选育

A New Welsh Onion Variety —‘Liaocong No.6'

用雄性不育系244A与保持系的姊妹系152杂交,配制成100%不育单交种244-152A,以244-152A为母本,以高代自交系2000Y24-3S98为父本配制成三交种辽葱6号。辽葱6号生长势旺盛,抗风能力较强,株高120cm左右,葱白长50～55cm、横径3.0～4.5cm,营养生长期间独棵不分蘖,平均成株单株质量250g,商品性好,每667m2产量4600kg左右,冬贮干葱可食用率为60.63%,适宜北方各地区种植。

Liaocong No. 6 is a third copulation welsh onion hybrid. Its male parent is inbred line 2000Y24 - 3S98 and female parent is 100 % male sterile single cross hybrid 244 - 152A. The plant grows vigorously,resists wind and is about 120 cm in height. The stalk is 50 -55 cm in length and 3.0 -4.5 cm in diameter. The stalk is single and there is no tiller during the period of vegetative growth. The edible rate is 60.63 % for winter-stored Liaocong No. 6 welsh onion. The yield is about 69 t·hm^-2. It is suitable for planting in north China.