国红苹果是石家庄果研所1988年用国光和红星作亲本杂交选育而成,其多项经济指标超过了红富士。1999年在廊坊召开的河北省农产品展销会上,获省优产品称号。 1.生长结果特点及树形选择 国红苹果树势强旺;以中短枝结果为主,可连续结果;丰产性强,采前落果极轻,果实着色容易,在不采用促进着色措施的条件下,仍可达到果实全红(包括梗洼和萼洼。果实7月上旬开始着色,9月上旬可全果着成红色)。10月下旬完全成熟, Guohong Apple is Shijiazhuang fruit Institute in 1988 with Guoguang and Red Star as the parental hybrid breeding, a number of economic indicators than the Red Fuji. In 1999 in Langfang agricultural products exhibition held in Hebei province, won the title of provincial superior products. 1. Growing characteristics and tree selection National apple trees strong potential; short and medium branches in the main result, continuous results; high yield, very light before harvest fruit, fruit coloring easily, without the use of promoting coloring measures Under the conditions, the fruit can still reach full red (including stem depression and calyx depression.) The fruit began to color in early July, early September all fruit into red. Fully mature in late October,