Studies On Salt Resistance Of Five Kinds Of Turf Grasses

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.