Evaluation of wood properties of four ages of Cedrela odorata trees growing in agroforestry systems with Theobroma cacao in Costa Rica

The study was carried out in an agroforestry system (AFS) with cacao trees already established in La Suiza Research Center, Corpoica, located in Rionegro, Santander (Colombia). The objective was to evaluate biomass input and nutrient release rate of the species that comprise the AFS (Gmelina arbórea, Gliricidia sepium, Cedrela odorata, Theobroma cacao). The plant material decomposition process of the species was monitored with decomposition bags after 8, 15, 23, 84 and 113 days, evaluating remnant weight and nitrogen, phosphorous, potassium, calcium and magnesium content. Results showed significant differences in plant material decomposition of the species considered. The largest weight loss was found in G. arborea (87.55%) and the lowest in C. odorata (40.01%). The highest nutrient release value was found in G. arborea followed by G. sepium, and the lowest in T. cacao and C. odorata.Therefore, depending on the species that comprise the AFS there is a differential leaf biomass decomposition dynamic and hence, of the nutrient input to the soil. Of the species evaluated the highest input of new organic matter to the soil in this AFS comes from G. arborea. Altogether, the litter generated by the species evaluated contributed with 10% of the nutrients required for a cacao harvest.

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Properties of wood from 7-year-old Cedrela odorata trees of two different populations growing in agroforestry systems with Theobroma cacao

Madera y Bosques ◽

10.21829/myb.2018.2411485 ◽

2018 ◽

Vol 24 (1) ◽

Author(s):

Priscilla Rigg-Aguilar ◽

Róger Moya Roque

Keyword(s):

Moisture Content ◽

Physical Properties ◽

Theobroma Cacao ◽

Morphological Characteristics ◽

Agroforestry Systems ◽

Modulus Of Rupture ◽

Tension Stress ◽

Cedrela Odorata ◽

Green Density ◽

Two Populations

This study evaluated the properties of juvenile wood from 7-year-old Cedrela odorata trees in two populations with the same provenance and planted in an agroforestry system with Theobroma cacao (cacao). The morphological characteristics (diameter at breast height; heartwood, sapwood, bark, and pith percentages; and eccentricity of pith), physical properties (shrinkage, green moisture content, green density, and specific gravity) and mechanical properties (modulus of rupture (MOR) and modulus of elasticity (MOE) in bending, compression stress, Janka hardness, tension stress and shear stress) were determined between two populations. The variation of the physical properties and morphological characteristics at different tree heights was also evaluated. The results showed that there were differences in both populations in terms of bark, pith, volumetric shrinkage, green moisture content, green density, MOR and MOE in bending, longitudinal compression and perpendicular tension. The results showed that population 2 presents better characteristics of growth and quality of wood for structural and furniture uses; hence, this population planted in agroforestry systems has good plantation conditions and wood quality.

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Modelling agroforestry systems of cacao (Theobroma cacao) with laurel (Cordia alliodora) and poro (Erythrina poeppigiana) in Costa Rica

Agroforestry Systems ◽

10.1007/bf02028353 ◽

1986 ◽

Vol 4 (3) ◽

pp. 175-189 ◽

Cited By ~ 38

Author(s):

L. Alpízar ◽

H. W. Fassbender ◽

J. Heuveldop ◽

H. Fölster ◽

G. Enríquez

Keyword(s):

Costa Rica ◽

Theobroma Cacao ◽

Agroforestry Systems ◽

Cordia Alliodora ◽

Erythrina Poeppigiana

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Modelling agroforestry systems of cacao (Theobroma cacao) with laurel (Cordia alliodora) and poro (Erythrina poeppigiana) in Costa Rica II. Cacao and wood production, litter production and decomposition

Agroforestry Systems ◽

10.1007/bf02344744 ◽

1988 ◽

Vol 6 (1-3) ◽

pp. 37-48 ◽

Cited By ~ 25

Author(s):

J. Heuveldop ◽

H. W. Fassbender ◽

L. Alpízar ◽

G. Enríquez ◽

H. Fölster

Keyword(s):

Costa Rica ◽

Theobroma Cacao ◽

Agroforestry Systems ◽

Litter Production ◽

Cordia Alliodora ◽

Wood Production ◽

Erythrina Poeppigiana

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Modelling agroforestry systems of cacao (Theobroma cacao) with laurel (Cordia alliodora) and cacao with poro (Erythrina poeppigiana) in Costa Rica

Agroforestry Systems ◽

10.1007/bf00129654 ◽

1989 ◽

Vol 8 (3) ◽

pp. 267-287 ◽

Cited By ~ 33

Author(s):

A. C. Imbach ◽

H. W. Fassbender ◽

R. Borel ◽

J. Beer ◽

A. Bonmnemann

Keyword(s):

Costa Rica ◽

Theobroma Cacao ◽

Agroforestry Systems ◽

Cordia Alliodora ◽

Erythrina Poeppigiana

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Calostilbe striispora. [Descriptions of Fungi and Bacteria].

IMI Descriptions of Fungi and Bacteria ◽

10.1079/dfb/20056400392 ◽

1973 ◽

Author(s):

C. Booth

Keyword(s):

Costa Rica ◽

Sierra Leone ◽

Geographical Distribution ◽

Hevea Brasiliensis ◽

Theobroma Cacao ◽

Experimental Studies

Abstract A description is provided for Calostilbe striispora. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Erythrina glauca, E. poeppigiana, Musa spp., Theobroma cacao, Coffea spp., Cecropiapeltata, Hevea brasiliensis, Erythrina spp. DISEASE: Bark rot of swamp (Bocare) and mountain (Anauca) immortelles in Trinidad and Venezuela; bonnygate disease of banana in Jamaica. GEOGRAPHICAL DISTRIBUTION: Colombia, Costa Rica, Ghana, Jamaica, Sierra Leone, Surinam, Trinidad, Venezuela, Zaire Republic (Congo). TRANSMISSION: Conidia presumably water dispersed; no experimental studies reported.

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