杂交水稻汕优广12选育研究

BREEDING OF SHANYOUGUANG 12,A NEW COMBINATION OF HYBRID RICE

汕优广12是用珍汕97A与广西农学院选育的"广12"组配育成的杂交水稻新组合。全生育期在南宁早造125 d,晚造110 d,平均株高110 cm,株型紧凑,分蘖力中等,耐肥抗倒,高抗稻瘟病,抗旱、抗寒、抗稻飞虱能力也较强,一般亩产500～550 kg。适于华南地区南部作早、晚造种植,中、北部作中、晚造种植,累计试种面积已超过150万亩。1991年12月通过广西农作物品种审定委员会审定。

A new hybrid rice combination Shanyouguang 12 was bred in Guangxi Agricultural University.The length of duration is about 125d when it is planted in the early -rice and 110d in the late-rice.The plant height is 110cm.It possesses high yielding ability,good grain quality and high resistance to rice blast.It produces 7.5～9.0t of grains per hectare.The planted area of Shanyouguang 12 has been over 67 thousand hectares in south China by the end of 1991.