三种草坪草的茎、叶解剖结构及其坪用性状

利用石蜡片法，对台湾草（Zoysia tenuifoia Willd.ex Trin.)、海雀稗（Paspalum vaginatum Sw.）、狗牙根Cnodon dactylon(L.)Pers．]三种细叶暖季型草坪草的叶片有茎的解剖结构进行了研究。结果表明：叶片及茎的解剖结构与植物的耐旱性、耐践踏性和弹性等坪用特性有着密切联系。三种植物中，台湾草因叶片表皮细胞、泡状细胞、维管束鞘、机械组织有茎中纤维带的特征，而在耐旱性、耐踏踏性和弹性等坪用特性上表现出优于其他二种草坪草；狗牙根的耐旱性较强，耐踏踏性和弹性一般，海雀稗则在这几项坪用特征上均较弱。

Anatomical Characters of Stems and Leaves of Three Lawn Grasses

The stems and blades of lawn grasses, Zoysia tenuifolia Willd. ex Trin., Paspalum vaginatum Sw. and Cynodon dactylon (L.) Pers., were anatomically studied. The structures of grass stems and blades showed close relation to the grass drought and trampling resistances, and elasticity. Among the three grasses, Z. tenuifolia was the best in drought resistance, trampling resistance and elasticity in terms of the epidermis, bulliform cells, bundle sheath, sclerenchyma of leaf, and the fibrous girdle of stem; C. dactylon was better in drought resistance, but poorer in trampling resistance and elasticity; whereas P. vaginatum was the worst in these characters.