Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/22663
Tipo: Artigo
Título: Influence of canopy height and fertilization levels on the resistance of Lycopersicon hirsutum to Aculops lycopersici (Acari: Eriophyidae)
Autor(es): Picanço, Marcelo
Guedes, Raul N. C.
Zanuncio, José C.
Leite, Germano L. D.
Abstract: The objective of this work was to study the effect of NK fertilization levels and canopy height on the resistance of Lycopersicon hirsutum and Lycopersicon esculentum to Aculops lycopersici (Acari: Eriophydae). The effects of NK fertilization levels and canopy height in the leaf size and density of trichomes and their effects on tridecan-2-one (2-TD) and undecan-2-one (2-UD) limiting the attack of A. lycopersici on tomato plants were assessed. Different NK fertilization levels had no effect on the resistance of L. hirsutum to A. lycopersici. No significant differences were found in attack rates of this mite on leaves of the top and median parts of L. hirsutum canopy. The type and density of trichomes were the main determining factor of A. lycopersici attack on tomato plants. High trichome densities and type VI glandular trichomes which produce tridecan-2-one are important resistance factors on tomato plants. L. hirsutum showed a high resistance level to A. lycopersici due to high densities of type VI glandular trichomes and consequently higher levels of tridecan-2-one in its leaves.
Palavras-chave: Tomato plants
Susceptibility
Mite
Tridecan-2-one
Nitrogen
Potasium
Editor: Experimental & Applied Acarology
Tipo de Acesso: Kluwer Academic Publishers 1999
URI: https://doi.org/10.1023/A:1006201915292
http://www.locus.ufv.br/handle/123456789/22663
Data do documento: Ago-1999
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