Specificity of leaf epidermis micromorphology in new material of seashore paspalum

Seashore paspalum(Paspalum vaginatum Sw.) new germplasm SP2008-1 and original germplasm Adalayd(CK) were selected as materials to study the stomatal characteristics of the upper and lower leaf epidermis.The bulliform cells of upper epidermis in SP2008-1 were like ovate and ablong in SP2008-1 and Adalayd,respectively.The areas of long cells between leaf venations in lower leaf epidermis of SP2008-1 were 1 068.09-5 961.98 μm2,47.90%-106.22% bigger than those of Adalayd(P0.05).The stomatal density of upper leaf epidermis in SP2008-1 was 133.00 per square metre,4.32% less than Adalayd.The stomatal density of lower leaf epidermis was 50 per square metre,36.00 less than Adalayd(P0.05).The stomatal length and width of upper leaf epidermise in SP2008-1 were 8.33% and 6.47% larger than those in Adalayd(P0.05),and were 22.37% and 15.73% larger than those in Adalayd(P0.05) in lower leaf epidermise.The guard cell width of lower leaf in SP2008-1 was 7.51% wider than that in Adalayd(P0.05).