caa a22 4500 463218396 CHVBK 20180405153204.0 cr unu---uuuuu 170326e20070501xx s 000 0 eng 10.1007/s11056-006-9028-1 doi (NATIONALLICENCE)springer-10.1007/s11056-006-9028-1 Early growth and photosynthetic responses to light in seedlings of three tropical species differing in successional strategies [Elektronische Daten] [Richard Gyimah, Toshio Nakao] Containerized seedlings of three commercially important tropical species were grown under four different light treatments [i.e., 100 (open site), 45, 22 and 10% sunlight] for 130days. Light-saturated photosynthesis (A max) and light saturation estimates (LSE) reflected the species successional status with Terminalia superba Engl. and Diels, the pioneer species showing largest mean A max and LSE at 100% sunlight, whereas at 10% sunlight, it showed the lowest A max and LSE. At 22% sunlight, Cedrela odorata L., an intermediate successional species had greater A max and LSE than Mansonia altissima A. Chev., a non-pioneer light demander and T. superba. T. superba had the lowest relative growth rate (RGR) at 10% sunlight and greatest net assimilation rate (NAR) at 100% sunlight; although a higher RGR at this light level was not seen for this species. Strong and positive linear mean A max-mean NAR relationship of C. odorata and T. superba indicated that differences in leaf photosynthetic rates of the two species were reflected in their NAR, which increased with increasing light. At final harvest, superior biomass production was found at 45% sunlight for all the species. Seedling responses in specific leaf area, leaf area ratio, leaf mass ratio and root mass ratio were typically those found along a light gradient. At the 100% sunlight, intrinsic water-use efficiency (WUE), F v/F m and final root system of the plants was generally superior in T. superba but at 10% sunlight, WUE was inferior in T. superba when compared to C. odorata and M. altissima, reflecting the respective species' short-term acclimation to high or low light. Results of this study may have practical use in screening tropical tree species for use in plantation forestry. Springer Science+Business Media, Inc., 2007 Cedrela odorata nationallicence Growth analysis nationallicence Mansonia altissima nationallicence Photochemical efficiency nationallicence Photosynthesis nationallicence Reforestation nationallicence Terminalia superba nationallicence Gyimah Richard The United Graduate School of Agricultural Sciences, Kagoshima University, c/o Faculty of Agriculture, University of Miyazaki, 889-2192, Miyazaki-shi, Japan aut Nakao Toshio Department of Biological Production and Environmental Sciences, Faculty of Agriculture, University of Miyazaki, 889-2192, Miyazaki-shi, Japan aut New Forests Kluwer Academic Publishers 33/3(2007-05-01), 217-236 0169-4286 33:3<217 2007 33 11056 https://doi.org/10.1007/s11056-006-9028-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11056-006-9028-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gyimah Richard The United Graduate School of Agricultural Sciences, Kagoshima University, c/o Faculty of Agriculture, University of Miyazaki, 889-2192, Miyazaki-shi, Japan aut NATIONALLICENCE 700 1- Nakao Toshio Department of Biological Production and Environmental Sciences, Faculty of Agriculture, University of Miyazaki, 889-2192, Miyazaki-shi, Japan aut NATIONALLICENCE 773 0- New Forests Kluwer Academic Publishers 33/3(2007-05-01), 217-236 0169-4286 33:3<217 2007 33 11056 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer