Influence of photosynthetically active radiation levels and fertilizer sources on production and acclimatization of Brassaia actinophylla endl. 1/ |
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| Authors: | F P Rasberry T M Blessington |
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| Institution: | 1. Department of Horticulture , Mississippi State University , Mississippi State, Mississippi, 39762;2. Soil Testing and Plant Analysis Specialist, Mississippi Cooperative Extension Service , Mississippi State, MS;3. Associate Professor, Department of Horticulture , Mississippi State University , Mississippi State, Mississippi, 39762 |
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| Abstract: | Production light levels 1900, 1140 and 380 μE˙m‐2 ˙s‐1 photosynthetically active radiation (PAR)] and fertilizer treatments Osmocote (18N‐3P‐10K) 12 g/15 cm pot, soluble. (20N‐6P‐17K) 480 ppm N weekly and combination of soluble 240 ppm N weekly plus Osmocote 6 g/pot] influenced growth parameters and elemental tissue content of Brassaia actinophylla in a 3×3 factorial experiment. Growth index, chlorophyll content and plant grade were greater in plants grown under medium and low PAR intensities (1140 and 380 μE˙m‐2 ˙s‐1) and when produced with the Osmocote fertilizer treatment. Inter‐nodal length decreased as production PAR levels increased. Analysis of leaf tissue indicated that decreasing PAR intensities produced an increase in N, P and K and a decrease in Mg. Calcium was unaffected. |
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| Keywords: | foliage plant light nutrition tissue analysis |
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