四种松属植物叶的抗寒抗旱特点研究

摘要

为了研究松属植物叶片与植物抗寒抗旱特点的关系,以松属（Pinus）两种植物樟子松（Pinus sylvestris var.mongolica Litvin.）和油松（Pinus tabulaeformis Carr.）为主要实验材料,同时,观察黑松（Pinus thunbergii Parl.）和马尾松（Pinus massoniana Lamb.）,研究针叶的表皮特征及叶片不同部位的解剖结构.结果表明,松属植物叶表皮外具有发达的角质层,气孔下陷,具有大的孔下室,树脂道发达.这说明松属植物叶具有旱生和寒性植物的形态结构特征.%In order to study the relationship between leaf of Pinus and drought resistance and cold resistance,epidermis characteristic and anatomy construction of needle leaf of two specices plants（Pinus sylvestrisa var.mongolica Litvin.and Pinus tabulaeformis Carr.） in Pinus are observed.The results indicated that the leaf of Pinus plants have some construction of drought resistance and cold resistance.For example：the outside on the surface of leaf is covered with a cuticle and epicuticular waxes,its stomata are stand out of the epidermis with big bore bottom room and so on.