ASSESSMENT OF GERMINATION AND EARLY GROWTH TRIAL OF Gmelina arborea (ROXB.)

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ASSESSMENT OF GERMINATION AND EARLY GROWTH TRIAL OF ROXB.pdf (1.8 MB)

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2015-09-26

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Department of Forestry, Nasarawa State University Keffi.

Abstract

The Gmelina arborea is a multi-purpose tree used daily by the forest industries for pulping, light constructions, furniture's and rural communities as fuel wood. a field experiment was carried out to investigate the provenance germination and early growth trial of Gmelina seedlingd. one thousand eight hundred seeds were sourced from 3 different locations namely Akwanga, Nasarawa Eggon and Lafia for germination tests, while 270 seedlings were examined for growth performance. The study was laid in a 3 x 3 factorial experiment in a completely randomnized design, Analysis of Variance was performed to show the the comparative performance of each treatment. Duncan's Multiple Range test (DMRT) was applied to locate where the significant difference occur among the locations and treatments in the measured variables. The result of germination with respect to locations revealed that Akwanga recorded the highest germination percentage of 70.09+- 25.70%, Nasarawa Eggon 66.90 +- 25.24% and Lafia 64.04 +- 22.20%. Also with respect to treatment ,it revealed that( T2- Sundried for 72hrs and soaked in water for 72hrs) recorded the highest germination with 66.61+22.33* uud (T3,Control, 65M±27.24*. The result of growth variables revet****. ^ ^ height of Gmelina arborea seedlings after 12 weeks was 62.04±38.50cm. colla, girth— 14.80+7.13 and leaf area 210.06 +142.84cm\ However, analysis of variance showe^ was a early growth variables assessed at p<0.05. The ^f'^jfl'f'^f^^flijregrcssion analysis on the effects or correlation (r ) between leaf area and plant height (0. meaJng that the assessed growth variables had growth variables on tree plant height had coefficient oJ( ■ viability as it was observed that seed about 95.7% effects on plant height. Seed from different ^“t'ZfffZXrc when raising Gmelina arborea obtained from Akwanga were more viable than the ot ler \o aooropriate seed source and needed preseedlings for plantation establishment, care should be taken to locate appiopnatc a mean treatment method.

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Keywords

Gmelina arborea, germination, growth, seedlings, pre-treatment

Citation

Adegbehin, J.O.. J.O. Abayomi and L.B. Nwaigbo. (1988): Gmelina arborea in Nigeria. Common Wealth Forestry Review 67 (2). i59 - i66. Adesoye, P.O. (2004): Practical Guide to Statistical Analysis for Scientists. Publication DEBO PRINTS, ISBN 97S-37965-0-X. pp 108 - 162. Chow, P. and Lucas E.B. (199S): Fuel Characteristics of Selected Four Year Old Trees in Nigeria. Wood and Fiber Science 20 (4): 431 - 437. Copeland, L.A. (1976): Principles of Seeds Science and Technology. Burgess Publishing Company. Minneapolis, 369 pp. Dvorak. W.S. (2003): World View of Gmelina arborea: Opportunities and Challenges. In Advances with Gmelina arborea. She Selection, Site Recent J.A. (2003): Preparation and Weed Control for Gun /' / arborea. Fawoje M.A and Sanni A. (19S2): Seed Germination of Gmelina Espinoza, Etejere, E.O. Studies on arborea. Evans, J.C. (1999): Plantation Forestry in Tree Planting for Industrial, the Tropics: In Social, Environmental and Agro-forester Purpose. 2nd Edition: Pg 226. Guide Multipurpose Trees from Around the World: FACT 99- 05. Forest, Farm and Marker. A.P. Sandels A. and Burley J. (I9S2): Calorific Value for Word and Bark and a Hossain. M.K. (1999): Gmelina arborea: A Popular Plantation Species in the Tropics. Quick Katendc, A.B., A. Bimie and B. Tengnas, (1995): Useful Trees and Shrubs for Uganda: Identification. Propagation and Management for Agriculture and Pastoral Communities. Regional Soil Conservation Unit (RSCU). Swedish International Development 112. Agboola, D.A. (1995): Studies on Dormancy and Germination of Seeds of Prosopis Africana Nigeria Journal of Botany 8: 45 - 56. Agboola, D.A and Adedire M.A. (1998): Responses of Germination Promoters: Nigeria Journal of Botany 11: 103 - 110. Agboola, D.A and Etejere E.O. (1991): Studies on of Selected EconomicTropical Tree Species: Nigeria Journal of Botany 8: 45-56. Akachuku. A.E. (1980): Wood Requirements and Supply for Private Forestry Programme. A Manuscript Prepared for Development Plan and Co. Lagos. Nigeria and Broker Agriculture International Ltd. U.K for Agricultural Development Project of Cross River State. Nigeria 1- 97pp. Akindele. S.O. (2004): Basic Designs in Agricultural Research. Publication Royalbird Ventures. Mushing Lagos Nigeria: pp 136-153. Beets, W.C. (1989): The Potential Role of Agroforestry in ACP Countries. Technical Centre for Asric and Rural Cooperation (ACP - SEC - LOME CONVENTION), Netherlands. Bibliography for Fuel-wood, Published by Tropical Products Institute G. that lead to rapid germination and establishment of the seed, therefore the seedlings started receiving sunlight and absorbing nutrients first that lead to the significant difference in the growth parameters (Agboola and Eiejere. 1991). On the other hand, the control (non-treated) followed the (sun-drying and soaking in water) while (sun-drying 72hrs) recorded the least mean values on growth parameters. CONCLUSION AND RECOMMENDATION Seeds from different source has different viability, as it was observed that seeds obtained from Akwanga were more viable than the other two locations, therefore when raising Gmelina arborea seedlings for plantation establishment, the seed source should be considered as a factor. There is little dormancy present in Gmelina arborea seeds and therefore it required little pretreatment. Seeds treated with sundrying and soaking in water recorded the highest germination percentage, even though there was no significant difference among the treatments. Sundrying and soaking in water contributed to rapid germination of the seeds which could be responsible for significant difference on all the growth variables such as height, collar girth, leaf count and leaf area. From the result of the study, it is recommended that the treatment with sundried for 72hrs and soaked in water for 72hrs performed better than the other treatments. Therefore, it should be adopted in raising Gmelina arborea seedlings in the nursery. However, further research activities on pretreatment of seed of Gmelina arborea should be carried out when raising the species for plantation establishment. Also, care should be taken to locate appropriate seed source, pre-treatment method. This will go a long way to increase the production of Gmelina arborea trees and guarantee its sustainable supply to the forest industry. references Adegbehin, J.O.. J.O. Abayomi and L.B. Nwaigbo. (1988): Gmelina arborea in Nigeria. Common Wealth Forestry Review 67 (2). i59 - i66. Adesoye, P.O. (2004): Practical Guide to Statistical Analysis for Scientists. Publication DEBO PRINTS, ISBN 97S-37965-0-X. pp 108 - 162. Chow, P. and Lucas E.B. (199S): Fuel Characteristics of Selected Four Year Old Trees in Nigeria. Wood and Fiber Science 20 (4): 431 - 437. Copeland, L.A. (1976): Principles of Seeds Science and Technology. Burgess Publishing Company. Minneapolis, 369 pp. Dvorak. W.S. (2003): World View of Gmelina arborea: Opportunities and Challenges. In Advances with Gmelina arborea. She Selection, Site Recent J.A. (2003): Preparation and Weed Control for Gun /' / arborea. Fawoje M.A and Sanni A. (19S2): Seed Germination of Gmelina Espinoza, Etejere, E.O. Studies on arborea. Evans, J.C. (1999): Plantation Forestry in Tree Planting for Industrial, the Tropics: In Social, Environmental and Agro-forester Purpose. 2nd Edition: Pg 226.

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https://keffi.nsuk.edu.ng/handle/20.500.14448/3105

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