Micromorphology of Leaf Epidermal Cells of Different Species of Cynodon dactylon in Pastoral Soil  

田园土上不同品种狗牙根叶表皮细胞微形态研究

作　　者：LI Ling-li HE Xin-ru SUN Bing FEI Yong-jun 李玲丽;贺心茹;孙兵;费永俊(长江大学园艺园林学院,湖北荆州434025)

机构地区：[1]College of Horticulture and Gardening,Yangtze University,Jingzhou 434025,PRC

出　　处：《Agricultural Science & Technology》2020年第4期34-43,共10页农业科学与技术（英文版）

基　　金：国家自然科学基金(31270740)。

摘　　要：To identify suitable grass species for growth in the Jianghan Plain,the micromorphologies of the upper and lower epidermis of the leaves of 14 bermudagrass varieties of Cynodon dactylon were investigated,and the number,length,and width of long and short cells and stomata were measured.The results showed that the anticlinal wall of epidermal cells looked like waves and the stoma was distributed in the upper and lower epidermis.However,the various indicators of the leaf epidermis of different species of Cd were significantly different.The length and width of long cells and the length of short cells of Cd Mohawk,Cd Suncity,and wild type Cd were relatively large,which may improve their ability to adapt to the pastoral soil and make them suitable for the rainy environment of the Jianghan Plain.On the contrary,the results of all indicators of Cd Xinnong 1,Cd hulled,and Cd unhulled ranked at the bottom,which was not suitable for pastoral soil habitats,while the wild type Cd could adapt to both the pastoral soil and the vegetation concrete habitat.Moreover,the long cells and short cells of Cd Kashi were tightly arranged,and the stoma in Cd Pyramid and Cd hulled were more dense,which may improve their ability to adapt to an arid environment.为筛选出适合江汉平原生长的狗牙根品种,观察了14个狗牙根品种叶片上、下表皮微形态,并测定了其长、短细胞和气孔的数量及长宽。结果显示,不同品种狗牙根的叶表皮的微形态结构类似,表皮细胞垂周壁呈波浪状,上、下表皮均有气孔分布,但各项指标差异显著;雄鹰、太阳城和野生狗牙根多项指标均较大,对田园土生境和江汉平原多雨的环境都具有很好的适应性;新农1号、普通脱壳狗牙根和普通未脱壳狗牙根的各项指标均居末位,对田园土生境适应性差;普通脱壳狗牙根也不适应植物砼生境,而野生狗牙根具有良好的田园土和植物砼生境适应性;喀什的叶片上、下表皮长、短细胞排列紧密,Pyramid和普通脱壳狗牙根气孔密度较大,均能很好的适应干旱环境。

关 键 词：Cynodon dactylon Epidermal cell MICROMORPHOLOGY 

分 类 号：S688.4[农业科学—观赏园艺]