Prediction of salinity tolerance at seedling establishment of three types of lawn
2003
Khaleghi, Esmaeil, College of Agriculture , Shahid Chamran University , Ahwaz | Ramin, Ali Akbar, Department of Horticulture, College of Agriculture, Isfahan University of Technology
As it has been known, lawn is one of the inseparable elements in the design of landscape, which can have a remarkable impact on the oxygen, refining of the air and decrease of dust in the air. Considering the problems of the growth this plant in salty regions, correlated with high temperature, experiment was conduct at the Department of Horticulture, College of Agriculture , Shahid Chamran University , Ahwaz . To estimate the tolerance to salinity at seedling establishment experiments were carried out in the form of a factorial with a completely randomized in which the seven levels of salinity and 3 different temperatures with three replication per treatment were examined on three types of lawn namely: Lolium perenne, Festuca arundinacea and Cynodon dactylon. It was appeared from the results of the table of variance that salinity, temperatures, type of lawn and interaction between them are highly effect on seedling establishment and the differences are significant (P0.05). The highest seedling emergence in all salinity levels, was observed in the Lolium in the temperature of 15 آ؛C, in Festuca in temperature of 25 آ؛C and in Synod, in the temperature of 35 آ؛C. In addition, it was determined that tolerance to salinity in Lolium in the temperature of 15 آ؛C, was 10.2 and in the temperature of 25 آ؛C, equals to 7.6 dS/m. While in Festuca, in a temperature of 15 and 25 آ؛C, was observed 9.9 and 10.9 dS/m, respectively. In the Cynodon, it was cleared that only in the temperature of 35 آ؛C, does this lawn have ability to emergence and the trasheheld to salinity of this kind of lawn in this temperature is 11.7 dS/m
Показать больше [+] Меньше [-]