1998年，美国华盛顿州的苹果苗木生产量创历史最高记录，其主栽品种发展动向如下。一、苹果苗销合上升、密植园们多据美国华盛顿州种苗业者的调查，1998年，其苹果苗木销售量达470万株，是80年代末年销量的2倍，创历史最高记录。该州销售苹果苗木的覆盖面达约85％。与10年前相 In 1998, the production volume of apple seedlings in Washington State of the United States hit a record high, and the development trend of its main cultivars was as follows. First, the apple seedling pinch together, according to the dense state of Washington State seedling industry survey, in 1998, the sales volume of apple seedlings reached 4.7 million, is the sales of the late 80s 2 times, a record high. The state sells apple seedlings coverage of about 85%. Compared with 10 years ago