The Brazil Nut (Bertholletia excelsa)
The Brazil Nut is the fruit of a tree that grows mostly wild in rainforests. Castanheiro do Para, which is the Brazilian name given to this tree, is found in many Amazonian states of Brazil, Peru, Columbia, Venezuela and Ecudor. It is most pervalent in the Brazilian states of Marahao, Mato Grosso, Acre, Para, Rondonia, and the Amazonas. The tree is enormous, Frequently attaining the height of 160 feet or more. The fruit is a large spherical woody capsule or pod and measures an average of six inches in diameter and can weigh up to 5 pounds. The fruit pods grow at the ends of thick branches, then ripens and falls from the tree from January to June. Inside each fruit pod is 12 to 25 Brazil nuts with their own indvidual shell(1).
Brazil nuts are harvested at plantations and in the wild. Plantations are being developed in various parts of the Amazon. Fazenda Aruana is the owner of a 12,000 hectare former cattle ranch, partially converted to a Brazil Nut plantation in 1980. By January of 1990, 318,660 Brazil nut trees were planted on 3341 hectares of land. Fazenda's original intent was to plant Brazil Nut trees in a 20 by 20 meter grids and allow cattle grazing between the trees. The trees in the Aruana plantation are the result of grafting high yield clones from the region of Abufari Amazonas were Brazil nuts are know for their large fruits and seeds. As a result of fertilization from the same clones, the fruit production among clones has been low(2). Another danger in using so few clones is the ability to resist attack of disease and insects.
The bulk of the Brazil nuts that are harvested are done so in the wild. They are harvested during a five to six month period in the rainy season. The fruits, witch weigh from .5 to 2.5 kilograms and contain ten to twenty five seeds, are gathered immediately after they fall. This minimizes the chance of insect or fungal attack on seeds. Brazil nuts are also carried away by animals. The number of pods can range form 63 to 216 per tree(). Most of the pods gathered in the wild are sent down river to processing plants were they are opened out of the pod and packaged.
The brazil nut has a major impact on local Amazonian economies. The numbers on total production are estimates due to the fact figures are hard to get from the Amazon.
Tuncer, B. and P. Schroeder. 2007. Chapter 8 Sambazon - marketing the acai berry: sustaintable agro-forestry in the Brazilian Amazon. Paper read at SCP casis in the field of Food, Mobilitiy and Housing, at Paris, France.
The first chapter focuses on Brazil’s founding and history up until present. When the Portuguese were blown off course to Asia onto the coasts of Brazil in 1500, the Portuguese knew they had found a land filled with opportunities. The main attraction was the abundance of brazilwood which could be used for manufacturing luxurious fabrics in Europe. Over the centuries, exploration led to the discovery of more resources such as sugar, coffee, and precious metals that had made it a sought after country for colonization. Even to this day, Brazil maintains the image of a land with limitless resources since the recent discovery of oil and gas reserves and other commodities.
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Brazil is located in Eastern South America, bordering the Atlantic Ocean. It is slightly smaller than the U.S., with bordering countries Argentina, Bolivia, Columbia, French Guyana, Guyana, Paraguay, Peru, Suriname, Uruguay, and Venezuela. It has many natural resources, including bauxite, gold, iron ore, manganese, nickel, phosphates, platinum, tin, uranium, petroleum, hydropower, and timber. The climate is tropical in the north, but temperate in the south. The terrain consists of mostly flat to rolling lowlands, with some plains, hills, mountains, and a narrow coastal belt. In recent years, environmentalists have become increasingly concerned over the future of the Amazon region, where human life has threatened the world's largest intact rain forest. Brasilia is the capital and main source of modern industry.
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Fossil records are unable to provide information of on the center of origins of the cacao tree. The cacao tree is in the Sterculiaceae family. The first growers of the cacao pods were probably the people who entered the lowland rain forests of the Amazon Basin between 10,000 and 200 B.P. The full name of the cacao tree is Theobroma cacao. Most of the information of the cacao have been derived from the cultivated crop. The life and reproduction life cycle of Theobroma cacao is identical to a tropical rain forest tree species. Cacao grows optimally in minimal moisture and shade. Cacao is dispersed in small, medium and large areas. This is probably the result of animal dropping the seeds after eating the tasty inside of the pods. Cacao pods are very diverse in morphology. These morphological difference suggests genetic differentiation.