Research on stomatal characteristics of stoma of jujube fruit

The experiment took eight year-old Jujube of ‘Lizao', ‘Dabailing', ‘Jinsixiaozao', ‘Yuanlingzao', ‘Junzao' and ‘Jinai NO.4' as test materials to observe the characteristics and differences of the fruit surface stoma structure under an optical microscope. The main results showed jujube fruit stoma was oval and nearly round and some lenticels were cracking in the longitudinal direction. The stoma of matured fruit remained open, and some contained filler within the pores. The outer and smaller inner horizontal diameters and outer longitudinal diameter of the stomas for ‘Yuanlingzao' and ‘Junzao' were smaller than that of ‘Lizao' and ‘Jinai NO.4'. The stoma opening and size of ‘Lizao' and ‘Jinai NO.4' were the largest, and the stoma opening and size of ‘Yuanlingzao' and ‘Junzao' were the smallest.