Increasing temperature might affect physiological and growth traits of seedlings, which are particularly important for tree survival. This study was conducted to investigate the physiological and growth responses of first-year seedlings to open-field experimental warming during one growing season. | Turkish Journal of Agriculture and Forestry Research Article Turk J Agric For (2017) 41: 175-182 © TÜBİTAK doi: Physiological and growth responses to experimental warming in first-year seedlings of deciduous tree species 1 1 1 1 1 Jiae AN , Saerom HAN , Hanna CHANG , Min Ji PARK , Seongjun KIM , 2 3 4 1,5, Jaehong HWANG , Min Seok CHO , Haegeun CHUNG , Yowhan SON * 1 Department of Environmental Science and Ecological Engineering, Graduate School, Korea University, Seoul, Korea 2 Divsion of Research Planning and Coordination, National Institute of Forest Science, Seoul, Korea 3 Forest Practice Research Center, National Institute of Forest Science, Pocheon, Korea 4 Department of Environmental Engineering, Konkuk University, Seoul, Korea 5 Department of Biological and Environmental Sciences, Qatar University, Doha, Qatar Received: Accepted/Published Online: Final Version: Abstract: Increasing temperature might affect physiological and growth traits of seedlings, which are particularly important for tree survival. This study was conducted to investigate the physiological and growth responses of first-year seedlings to open-field experimental warming during one growing season. Seedlings of three deciduous tree species (Fraxinus rhynchophylla Hance, Zelkova serrata (Thunb.) Makino, and Quercus variabilis Blume) were warmed with infrared heaters with a mean air temperature difference of °C between the treatments. Physiological traits (net photosynthetic rate, transpiration rate, stomatal conductance, and total chlorophyll content) were measured in July, September, and October 2014, and growth traits (root collar diameter (RCD), shoot length, component biomass, and root mass to stem mass ratio (RSR)) were measured in June, August, and October 2014 for harvested seedlings. Net photosynthetic rate, transpiration rate, and stomatal conductance were not affected by
