TAILIEUCHUNG - Effects of NaCl on the germination, seedling growth and water uptake of triticale

The lack of information about the effects of salinity on vegetative growth of triticale prompted us to study the salt tolerance levels of 3 newly registered cultivars, Karma-2000, Presto, and Tatlicak-97. | Turk J Agric For 30 (2006) 39-47 © TÜB‹TAK Effects of NaCl on the Germination, Seedling Growth and Water Uptake of Triticale Mehmet ATAK* Mustafa Kemal University, Faculty of Agriculture, Department of Field Crops, 31034, Hatay - TURKEY Mehmet Demir KAYA University of Ankara, Faculty of Agriculture, Department of Field Crops, 06110, Ankara - TURKEY Gamze KAYA University of Ankara, Faculty of Agriculture, Department of Horticulture, 06110, Ankara - TURKEY Yakup ÇIKILI University of Ankara, Faculty of Agriculture, Department of Soil Science, 06110, Ankara - TURKEY Cemalettin Yaflar Ç‹FTÇ‹ University of Ankara, Faculty of Agriculture, Department of Field Crops, 06110, Ankara - TURKEY Received: Abstract: The lack of information about the effects of salinity on vegetative growth of triticale prompted us to study the salt tolerance levels of 3 newly registered cultivars, Karma-2000, Presto, and Tatl›cak-97. Moreover, the relative importance of the osmotic or toxic effects of NaCl on seed germination are not clear in triticale. In this study, germination percentage, seedling fresh and dry weight and water uptake of the seeds of 3 triticale cultivars were determined under various salt (NaCl) stresses with electrical conductivities of , , , , and dS m-1. Roots and shoots were analyzed for uptake of Na+ and K+, and seeds for Na+, K+ and Cl-. The results showed that increased NaCl significantly affected mean germination time without affecting final germination percentage. In each salt concentration, water uptake was not significantly changed. Salinity increased the accumulation of Na+ and decreased the K+ content in the roots and shoots. Moreover, the Na+ and Cl- content of germinating seeds gradually increased, while K+ diminished. Karma-2000 appeared to be more tolerant to salt stress than the others. It was concluded that the delay in germination was mainly due to higher Na+ accumulation in the seeds rather than osmotic stress in .

• Nông nghiệp
• Triticale prompted
• Water uptake
• Triticale seedling characters
• Seed germination
• Triticale x Triticosecale Wittmack