Salinity effect on germination and Initial growth of Poa pratensis , Cynodon dactylon , Lolium perenne
2009
Roohollahi, I., Agriculturale Faculty, Tehran University | Kafi, M., Agriculturale Faculty, Tehran University | Sayyad Amin, P., Agriculturale Faculty, Tehran University | Arghavani, M., Agriculturale Faculty, Tehran University
Because of to the existence of salinity and high temperature and sensitivity of some plant in most regions of Iran, there are a lot of difficulties in the planting and husbandry of lawn. Experiment was carried out under and laboratory condition, to investigate the effect of five and six level of salinity as irrigation with hand made salinity of 1, 2, 3, 4 and 2, 4, 6, 8, 10 ds/m on the growth and development of three type of lawn namely: Lolium perenne, Cynodon dactylon, Poa pratensis in the form of a 3*5 and 3*6 factorial with a completely randomized design in 4 and 3 replication respectively. Total germination, germination rate, fresh and dry weight of leaves and shoot length were recorded in each experiment. According to the result it was reveald that effect of salinity Genus and interaction were significant on all parameters. In all salinity levels, Cynodon dactylon in comparison with the other two genus displayed the highest fresh and dry weight of leaves. Total germination was reduced significantly in second experiment (Green house) at a salinity of 8 and 10 ds/m. It was also appeared that at salinity the germination of Cynodon dactylon reduced more than other genus. Key words: Lawn, Salinity, Total germination, Cynodon dactylon, Poa pratensis, Lolium prenne
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