高产高蛋白食饲两用早籼99早677的选育及其栽培技术

Breeding of High Protein Content Early Indica Rice 99zao677 and It's Cultural Technology

99早677系湘早籼19号与湘早籼24号配组杂交，经9a选育而成，2004年2月通过湖南省农作物品种审定委员会审定命名。该品种全生育期110d左右，一般产量7．2～7．6t／hm^2，抗白叶枯病，适合湖南全省各地作食饲两用早稻栽培。栽培技术要点：密度13.3cm×20.0cm，全生育期施纯氮180kg／hm^2，氮磷钾比例为1：1：1．2。

99zao677 was bred by use of the parental variety Xiangzaoxie No.19 and Xiangzaoxie No.24. The whole duration of this variety is about 110 days in Hunan province in early season. The average yield is 7.2～7.6 t/hm^2. The characteristic of this variety is the high - yield and high protein content.