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Resistência de clones de seringueira à infestação por ácaros

Authors: Vieira, Marineide Rosa; Martins, Gustavo Luís Mamoré; Scaloppi Junior, Erivaldo José;

Resistência de clones de seringueira à infestação por ácaros

Abstract

Calacarus heveae Feres (Eriophyidae) e Tenuipalpus heveae Baker (Tenuipalpidae) podem causar intenso desfolhamento em plantas de seringueira. Na perspectiva de implantação de manejo integrado de pragas, o uso de clones resistentes pode vir a ser uma importante estratégia de controle. O objetivo deste trabalho foi avaliar a resistência de clones de seringueira ao ataque desses ácaros em experimento conduzido em Votuporanga, SP. O delineamento experimental foi o de blocos casualizados com 18 tratamentos e três repetições, sendo que os tratamentos adotados foram: clones PB 230, PB 243, PB 252, PB 294, PB 306, PB 311, PB 312, PB 314, PB 324, PB 346, PB 350, PB 355, IAC 56, IAC 302, IAC 328, IAC 334, Fx 3899 e RRIM 600. As avaliações populacionais de C. heveae e T. heveae foram realizadas pela contagem em laboratório dos ácaros e exúvias presentes em seis folíolos por parcela. Os níveis de desfolhamento foram avaliados com uma escala de notas de 0 a 4, sendo 0 ausência de desfolhamento e 4 desfolhamento acima de 75%. Com base nos resultados pode-se concluir que o clone Fx 3899 é resistente a C. heveae por não preferência e/ou antibiose. O clone IAC 56 é menos suscetível ao desfolhamento provocado pela infestação de C. heveae e T. heveae.

Country
Brazil
Keywords

Hevea brasiliensis, Calacarus heveae, Tenuipalpus heveae, Acari

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
4
Average
Average
Average
Green
gold