苹果
落叶乔木,树高可达15米,栽培条件下一般高3~5米。树干灰褐色,老皮有不规则的纵裂或片状剥落,小枝光滑。单叶互生,椭圆至卵圆形,叶缘有锯齿。伞房花序,花瓣白色,含苞时带粉红色,雄蕊20枚,花柱5枚。果实为仁果,颜色及大小因品种而异。喜光,喜微酸性到中性土壤。最适于土层深厚、富含有机质、心土为通气排水良好的沙质土壤。繁殖栽培用嫁接繁殖。砧木有乔化砧和矮化砧。常用乔化砧有:楸子、西府海棠、山荆子,矮化砧主要引进英国品种。采用宽行密植,行向南北。偏南部地区秋冬土壤封冻前栽植,偏北部地区春季解冻时栽植。苹果自花结实力差,栽植时必须配置授粉树。http://www.51wall.com/image_base/2008/06/1601_apple/1002_01.jpg
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http://www.51wall.com/image_base/2008/06/1601_apple/1002_20.jpg 好美的图片,欣赏了! 十几年没有看到苹果园了, 图片漂亮,谢谢介绍。
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