关键词: 梨, 品种, 石细胞团, 果肉质地

Abstract: The stone cells size of 319 pear accessions of 6 Pyrus L. species were analyzed，including Chinese white pear varieties（Pyrus bretschneideri Rehd.），sand pear varieties[P. pyrifolia（Burm.f.）Nakai]，ussurian varieties（P. ussuriensis Maxim.），sinkiang varieties（P. sinkiangensis Yü），common pear varieties（P. communis L.）and Pyrus hybrid varieties. The results showed that more than 250 μm diameter of stone cells content accounted for about overall content of 75%；The effects of less than 250 μm diameter stone cells to sensual evaluation is smaller；More than 250 μm diameter of stone cells content is the important indexes to flesh texture.　　

Key words: pear, cultivar, stone cells, flesh texture