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Resistance of tomato plant genotypes with high foliar allelochemical contents to the leafminer Liriomyza trifolii = Resistência de genótipos de tomateiro com altos teores de aleloquímicos nas folhas à mosca-minadora Liriomyza trifolii

Author: Silva, A.A. da
Author: Carvalho Andrade, M.
Author: Maluf, W.R.
Author: Campos Moraes, J.
Author: Figueiredo Rezende, J.
Year: 2017
URI: https://hdl.handle.net/10883/19482
Abstract: The objective of this study was to assess the resistance of tomato genotypes with high foliar levels of allelochemicals to the leafminer Liriomyza trifolii. Eight tomato genotypes with contrasting levels of three different alellochemicals were tested for leafminer resistance: the TOM-687 and TOM-688 lines, which are both rich in acylsugar; ZGB-703 and ZGB-704, which are rich in zingiberene; BPX-365G-899-07-04-02 and BPX-367E-238-02, which are rich in 2-tridecanone; and 2 standard commercial hybrids (Deborah Max and Bravo F1) with low-allelochemical content. Thirty days after being transplanted, nine potted plants of each of the treatments were transferred to a phytotron chamber, into which 1600 unsexed leafminer adults from a mass rearing were released. The number of mines and the percentage of leaves and leaflets attacked (= with the presence of punctures) were evaluated. Six days later, the number of pupae was recorded. The genotypes with high levels of acylsugar were associated with higher levels of resistance to leaf miner L. trifolii, through antixenosis and antibiosis mechanisms. At least one of the 2-tridecanone-rich lines (BPX -365G-899-07-04-02) showed some level of resistance via an antibiosis mechanism.
Format: PDF
Language: English
Publisher: Zeppelini Editorial
Copyright: CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose.
Type: Article
Place of Publication: São Paulo, Brazil
Volume: 84
DOI: 10.1590/1808-1657000892015
Agrovoc: SOLANUM LYCOPERSICUM
Agrovoc: PLANT BREEDING
Agrovoc: LIRIOMYZA TRIFOLII
Agrovoc: INSECTA
Agrovoc: ALLOMONES
Journal: Arquivos do Instituto Biológico


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    Genetic Resources including germplasm collections, wild relatives, genotyping, genomics, and IP

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