酸枣三个新品种及野生种叶的性状及显微鉴别研究OA

Objective:To conduct morphological and microscopic identification of leaves from three new varieties(Pufeng No.1,Pufeng No.2,Pusuan No.6)and the wild species of Ziziphus jujuba var.spinosa,and to provide a reference for their identification,development and utilization.Methods:Morphological,micro-morphological and microscopic identification methods were adopted to observe and compare the leaf characte-ristics of the three new varieties and wild species of Ziziphus jujuba var.spinosa.Results:Morphological and micromorphological identification showed that there were significant differences in leaf shape,texture,pubescence on leaf veins,and stipule mor-phology among the three new varieties and the wild species of Ziziphus jujuba var.spinosa.Trans-verse section microscopic identification revealed obvious differences in the prominence of main and lateral veins,vascular bundle characteristics,and the number of mucilage cavities of the leaves.Leaf epidermis microscopic identification indicated that indices such as palisade-to-epidermis ratio,vein islet number,and stomatal density showed statistically significant differences among most varieties(P＜0.05).In powder microscopic identification,non-glandular hairs,calcium oxalate cluster crystals,and vascular bundles were observed in all samples,but their sizes and distributions varied.Conclusions:Morphological,micromorphological and microscopic identification methods can effectively distinguish the three new varieties from the wild species of Ziziphus jujuba var.spinosa,which can provide a scientific basis for the identification and resource development of new varieties of Ziziphus jujuba var.spinosa.