The experiment was conducted at the Application and Research farm of the College of Agriculture, Uludag University, Bursa province (southern Marmara Region). The site is situated at 28° 50″ E longitude and 40° 13″ N latitude and at an altitude of 100 m above sea level. The yearly absolute minimum and maximum temperatures in the area average -16.4°C (February) and 43.8°C (July), respectively, with a mean annual rainfall of 706.0 mm.