“皇家秋天”是美国加州最新推出的特大粒无核品种 ,1 999年引入 ,属欧亚种。该品种树势中等健壮 ,果实从开花到成熟约 1 0 0天左右 ,在山东临清 8月下旬成熟 ,为晚熟品种。果穗大 ,圆锥形 ,多岐肩 ,平均重 65 0 g。果粒大 ,卵圆倒椭圆形 ,紫黑色 ,外皮蜡质 ,平均粒重 8～ 1 0 “Royal Autumn” is California’s latest introduction of extra-large grain seedless varieties, introduced in 1999, is a Eurasian species. The variety is moderately robust tree species, fruit flowering from maturity to about 100 days, Linqing in Shandong in late August mature late-maturing varieties. Large ears, conical, multiple shoulders, the average weight 65 0 g. Large fruit, egg oval inverted, purple black, skin wax, the average weight 8 ~ 10