【作者】 于红立；

【导师】 张秀英；

【作者基本信息】 北京林业大学 ， 园林植物与观赏园艺， 2004， 硕士

【摘要】 本课题是天津科委资助项目“天津盐碱地引种抗盐碱草坪草研究”的实验部分，即在实验室条件下测试、分析草坪草是否能在天津盐碱地上栽植生长，从而为下一步大量应用提供理论依据和实践指导。作者在阅读大量相关文献，了解国内外发展动态的基础上，根据甲方的要求，先采用土壤浸提液胁迫植物的方法、后采用人工配制盐溶液胁迫植物的方法对草坪草进行观测与分析。 本文以甲方提供的无芒雀麦、‘交战Ⅱ’、‘翠碧A’、‘小野马’、‘回报’五种草坪草为材料，分别研究了它们在天津盐碱土浸提液胁迫下的生长状况、生物量、含水量、离子含量、脯氨酸含量和叶绿素含量以及它们在人工配制NaCl溶液胁迫下的脯氨酸含量、叶绿素含量等有关生理指标的变化及其与抗盐性之间的关系，并分析其抗盐性及抗盐能力的大小。实验结果如下：在天津盐碱土浸提液胁迫下，五种草坪草生长状况良好，说明它们具有一定的抗盐碱能力，但是无芒雀麦的观赏特性不如其它四种草坪草；‘回报’、无芒雀麦、‘交战Ⅱ’的抗盐能力大于‘翠碧A’和‘小野马’。在人工配制NaCl溶液胁迫下，‘回报’和无芒雀麦的抗盐能力最强。综合以上两种研究方法的结果，五种草坪草均有一定的抗盐碱能力。其中‘回报’、无芒雀麦的抗盐能力最强，其次为‘交战Ⅱ’，‘翠碧A’和‘小野马’的抗盐能力最弱。但是就抗盐性和观赏性两方面而言，‘回报’和‘交战Ⅱ’是最适合在天津盐碱地引种的草坪草。更多还原

【Abstract】 This subject is the experiment part of the project: "The study of salt resistant turf grass species introduced into Tianjin and planted on saline-alkali soil in Tianjin" financed by Tianjin Science Committee Foundation. Turf grasses were tested and analysed under condition of laboratory in order to prove if they can be planted on saline-alkali soil in Tianjin. Author read a lot of literatures interrelated and understanded the tends of studies of salt resistance. Two kinds of salt stress means with permeance of Tianjin saline-alkali soil and NaCl solution were used according with demand of Tianjin Science Committee.The experiments were carried out with Brumus Inerme, Festuca arundinacea ’Crossfire II ’, Festuca arundinacea ’Triple A’ , Festuca arundinacea ’Mini Mustang ’ , Poa pratensis ’Reward’ which were offered by Tianjin Science Committee. The main strain indexes such as Bio mass. Water content. Ion content, Proline and Chlorophyll contents were surveyed under the salt stress with permeance of Tianjin saline-alkali soil; Proline and Chlorophyll contents were determined under the salt stress with NaCl solution. The results were concluded as follows: Five kinds of turf grasses have certain salt resistant capacities under the salt stress with permeance of Tianjin saline-alkali soil. The capacitis to salt resistance of Poa pratensis ’Reward’ , Brumus Inerme, Festuca arundinacea ’Crossfire II’ are stronger than Festuca arundinacea ’Triple A’ , Festuca arundinacea ’Mini Mustang ’. But the biological speciality of Brumus Inerme is worse than the others. The capacitis to salt resistance of Poa pratensis ’Reward’ and Brumus Inerme are the strongest under the salt stress with NaCl solution. In a word , five kinds of turf grasses have salt resistant capacities. Poa pratensis ’Reward’ and Festuca arundinacea ’Crossfire II’ are the salt resistance species which can be planted on saline-alkali soil in Tianjin if the salt resistance and view speciality are all considered.更多还原