The mortality of Caryocar brasiliense in northern Minas Gerais State, Brazil



Document title: The mortality of Caryocar brasiliense in northern Minas Gerais State, Brazil
Journal: Acta scientiarum. Agronomy
Database: PERIÓDICA
System number: 000347422
ISSN: 1679-9275
Authors: 1
1
1
1
1
2
Institutions: 1Universidade Federal de Minas Gerais, Instituto de Ciencias Agrarias, Montes Claros, Minas Gerais. Brasil
2Universidade Federal de Vicosa, Departamento de Biologia Animal, Vicosa, Minas Gerais. Brasil
Year:
Season: Abr-Jun
Volumen: 34
Number: 2
Pages: 131-137
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, analítico
English abstract The purpose of this work was to study the percentage of healthy trees, living trees and healthy branches and the renewal (natural propagation) of Caryocar brasiliense associated with the properties of soil, the floristic diversity and the canopy size of this plant. Lower proportions of live C. brasiliense trees and of healthy branches were found in the Savanna of Ibiracatu, where only 30% of the trees were healthy and without visible signs of attack by wood borers and by Phomopsis sp. We observed that C. brasiliense trees in areas where the soils contained higher levels of summed chemical bases and total sand (fine + gross) were less healthy. Moreover, the areas whose soils contained higher levels of aluminum and clay had a higher percentage of healthy C. brasiliense trees and branches. Smaller percentages of live and healthy trees and healthy branches were noted in areas with higher floristic diversity. Overall, the higher mortality of C. brasiliense trees may be associated with a higher pH and a lower content of aluminum, silt and clay, with competition with other tree species for nutrients, water and light, with the attack of Cossidae and particularly with the attack of fungi, Phomopsis sp
Portuguese abstract O objetivo deste trabalho foi estudar a percentagem de árvores sadias, vivas, galhos sadios e taxa natural de regeneração (propagação natural) de Caryocar brasiliense, associando com propriedades do solo, diversidade florística e tamanho de copa desta planta. As menores percentagens de árvores vivas de C. brasiliense e de galhos sadios foram observadas no cerrado de Ibiracatu, onde somente 30% destas estavam saudáveis, sem sinais visíveis de ataque do broqueador de tronco (Lepidoptera: Cossidae) e do fungo Phomopsis sp. As árvores de C. brasiliense localizadas em áreas cujos solos continham maiores níveis de soma de bases e areia total (fina + grossa) estavam menos saudáveis. Além disso, as áreas cujos solos continham maiores níveis de alumínio e de argila apresentaram maiores percentagens de árvores de C. brasiliense sadias e de galhos sadios. As menores percentagens de árvores vivas e sadias e com galhos vigorosos foram notados em áreas com maior diversidade florística. A maior mortalidade de árvores de C. brasiliense pode estar associado com maior pH e menor conteúdo de alumínio, de silte e argila, aliado com a competição com outras espécies florestais por nutrientes, água e luz, associado com ataque de Cossidae e principalmente do fungo Phomopsis sp
Disciplines: Agrociencias
Keyword: Fitopatología,
Botánica,
Hongos,
Caryocar brasiliense,
Dosel,
Diversidad florística,
Cossidae,
Phomopsis,
Mortalidad,
Brasil
Keyword: Agricultural sciences,
Phytopathology,
Botany,
Fungi,
Caryocar brasiliense,
Canopy,
Floristic diversity,
Cossidae,
Phomopsis,
Mortality,
Brazil
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