Trabalho Apresentado em Evento

Lessons from 35 years promoting agroforestry trees in Brazil's central Amazon

Since 1975, Brazil's National Research Institute for the Amazon has been involved in the promotion of trees in agriculture. This experience is reviewed, with special attention to participatory research, to arrive at suggestions for research and development (R&D) strategies for underutilized species....

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Autor principal: van Leeuwen, Johannes
Outros Autores: Gomes, João Batista Moreira, Menezes, José Maria Thomaz, Leandro, Raimundo Cajueiro
Grau: Trabalho Apresentado em Evento
Idioma: English
Publicado em: Acta Horticulturae 2020
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/20016
id oai:repositorio:1-20016
recordtype dspace
spelling oai:repositorio:1-20016 Lessons from 35 years promoting agroforestry trees in Brazil's central Amazon van Leeuwen, Johannes Gomes, João Batista Moreira Menezes, José Maria Thomaz Leandro, Raimundo Cajueiro Since 1975, Brazil's National Research Institute for the Amazon has been involved in the promotion of trees in agriculture. This experience is reviewed, with special attention to participatory research, to arrive at suggestions for research and development (R&D) strategies for underutilized species. Information was collected on all species of potential interest, including exotics. To collect data, farms with rare species were localized and visited. To obtain experience under "real" conditions, a series of on-farm trials were organized. Volunteer farmers chose species and quantities, contributed with land and labor, and were free to manage the plantings in their way. Recommendations are given for the preparation of species profiles containing: (1) a crop's strong and weak points; (2) comparisons of the crop with other options available to the farmers; (3) comparisons of the product with competing alternatives; (4) factors limiting the species' expansion; (5) researchable constraints; (6) recommended sources of planting stock. It is practical to elaborate a set of profiles pertaining to a particular category (e.g., species producing medicines) of interest to a specific group of farmers. Sets of profiles of all potential species can give the necessary overview for the development of a R&D strategy. Major R&D efforts should concentrate on the more promising species. The choice of these species needs review at regular intervals, to maintain flexibility in the program. Many species show significant variability for economically important traits. In these cases, selected material must be used from the very beginning. This can be done by using offspring of superior plants. A part of this offspring can be used for progeny tests. Using single-tree plots, single replicates will be small enough to fit on the land of interested farmers. By culling, some replicates can be transformed into orchards for the production of genetically improved material. 2020-06-16T17:31:43Z 2020-06-16T17:31:43Z 2013 Trabalho Apresentado em Evento https://repositorio.inpa.gov.br/handle/1/20016 10.17660/ActaHortic.2013.979.89 en Volume 979, Pags. 797-806 Restrito Acta Horticulturae
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language English
description Since 1975, Brazil's National Research Institute for the Amazon has been involved in the promotion of trees in agriculture. This experience is reviewed, with special attention to participatory research, to arrive at suggestions for research and development (R&D) strategies for underutilized species. Information was collected on all species of potential interest, including exotics. To collect data, farms with rare species were localized and visited. To obtain experience under "real" conditions, a series of on-farm trials were organized. Volunteer farmers chose species and quantities, contributed with land and labor, and were free to manage the plantings in their way. Recommendations are given for the preparation of species profiles containing: (1) a crop's strong and weak points; (2) comparisons of the crop with other options available to the farmers; (3) comparisons of the product with competing alternatives; (4) factors limiting the species' expansion; (5) researchable constraints; (6) recommended sources of planting stock. It is practical to elaborate a set of profiles pertaining to a particular category (e.g., species producing medicines) of interest to a specific group of farmers. Sets of profiles of all potential species can give the necessary overview for the development of a R&D strategy. Major R&D efforts should concentrate on the more promising species. The choice of these species needs review at regular intervals, to maintain flexibility in the program. Many species show significant variability for economically important traits. In these cases, selected material must be used from the very beginning. This can be done by using offspring of superior plants. A part of this offspring can be used for progeny tests. Using single-tree plots, single replicates will be small enough to fit on the land of interested farmers. By culling, some replicates can be transformed into orchards for the production of genetically improved material.
format Trabalho Apresentado em Evento
author van Leeuwen, Johannes
spellingShingle van Leeuwen, Johannes
Lessons from 35 years promoting agroforestry trees in Brazil's central Amazon
author2 Gomes, João Batista Moreira
Menezes, José Maria Thomaz
Leandro, Raimundo Cajueiro
author2Str Gomes, João Batista Moreira
Menezes, José Maria Thomaz
Leandro, Raimundo Cajueiro
title Lessons from 35 years promoting agroforestry trees in Brazil's central Amazon
title_short Lessons from 35 years promoting agroforestry trees in Brazil's central Amazon
title_full Lessons from 35 years promoting agroforestry trees in Brazil's central Amazon
title_fullStr Lessons from 35 years promoting agroforestry trees in Brazil's central Amazon
title_full_unstemmed Lessons from 35 years promoting agroforestry trees in Brazil's central Amazon
title_sort lessons from 35 years promoting agroforestry trees in brazil's central amazon
publisher Acta Horticulturae
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/20016
_version_ 1787141795633692672
score 11.755432

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