Early Growth Performance of Parkia biglobosa (Jacq. R.Br.) Benth under Different Growth Conditions
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Date
2022-11-26
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Publisher
Forestry Association of Nigeria
Abstract
The study involved evaluation of the effects of different growing conditions on the early performance of Parkia biglobosa seedlings. The study was carried out at the Department of Agronomy Nursery, Faculty of Agriculture, University of Ilorin. The experiment was laid out in a 3 × 4 factorial in a completely randomized design with sowing medium and manure as the two factors, and watering regime in a completely randomized design. The sowing media were top-soil, sawdust and river sand. The manures were cowdung, water hyacinth, mixture of water hyacinth and cowdung and control. The seedlings were watered in the morning, morning and evening, every other-day. Twelve trays were used for each treatment, making 36 trays for the study. Twenty seeds were sown in each tray making 240 seeds per sowing medium. The seedlings were pricked-out and potted using 16.3 by 8 cm polythene pots. Eight weeks after germination, height, collar diameter, leaf number and leaf area were measured before seedlings were potted. Second readings were taken on growth parameters after stabilizing, and manures were applied. They were left to grow for 14 weeks, after which third readings were. The result revealed that there were no significant differences in mean germination percentages among the watering regimes (P>0.05. For those watered in the morning and evening, top-soil was highest (23.8%) in seedling emergence with sawdust as the least (5%). In every other day, top-soil and sawdust had the highest seedling emergence (21.3%) each, while river sand had the least (8.8%). With respect to morning, river sand had the highest seedling emergence (31.3%), followed by sawdust (30%) with topsoil as the least (28.8%). There were no significant differences among the mean seedling heights under different sowing medium and manure (P˃0.05). Similarly, the interaction effect between sowing medium and manure was not significant (P˃0.05). Sowing medium and manure had no significant effects on leaf numbers (P˃0.05). Also, the interaction between the two factors was not significant (P ˃ 0.05). However, the effects of the two factors were significant on collar diameter (P<0.05) while the interactions was not. Follow-up test (LSD) results showed that seedling collar diameters are similar for sawdust and river sand, but differed between sawdust and topsoil also between river sand and topsoil with the highest mean of 0.49 ± 0.15 cm recorded in topsoil, and least in sawdust (0.29 ± 0.29 cm). There were no significant differences in mean collar diameters among the manures but they were significantly different from the control. The result further revealed that there were no significant differences among the mean leaf areas under different sowing media and manure just as the interaction of the two factors (P˃0.05). Parkia biglobosa is a slow-growing species, which may make the various treatments effect not to have been fully expressed at the expiration of the study. Therefore, it is recommended to make further observations at field stage.
Description
Conference Proceedings
Keywords
Research Subject Categories::FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING
Citation
Adeyemi, A.A. & Kelani, M.O. (2022): Early Growth Performance of Parkia biglobosa (Jacq. R.Br.) Benth under Different Growth Conditions. O.Y. Ogunsanwo, N.A. Adewole, P.I. Oni & I.O. Azeez (eds). Proceedings of the 44th Annual Conference of the Forestry Association of Nigeria (FAN), 97-107