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Selection of processing tomato genotypes resistant to two spotted spider mite Horticultura Brasileira
Zanin,Daniel S; Resende,Juliano TV; Zeist,André R; Oliveira,João RF; Henschel,Juliane M; Lima Filho,Renato B.
ABSTRACT One of the major problems in cultivation of tomato is the occurrence of pests and diseases. The objective of the research was to select genotypes from the second generation of the first backcross (F2BC1) between the tomato cultivar for processing S. lycopersicum (cv. Redenção) and the wild access S. habrochaites var. hirsutum (PI-127826), with high levels of zingiberene (ZGB), resistant to the twospotted spider mite Tetranychus urticae (Acari: Tetranychidae). From the F2BC1 population. The ZGB content was quantified and five plants with high zingiberene selected (RVTZ 2011-079-117, RVTZ 2011-079-185, RVTZ 2011-079-335, RVTZ 2011-079-345 and RVTZ 2011-079-503) and four with low zingiberene content (RVTZ 2011-079-417, RVTZ 2011-331-460, RVTZ...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Solanum lycopersicum; Solanum habrochaites var. hirsutum; Tetranychus urticae; Genetic breeding; Zingiberene.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000200271
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Role of allelochemicals and trichome density in the resistance of tomato to whitefly Ciência e Agrotecnologia
Neiva,Irã Pinheiro; Andrade Júnior,Valter Carvalho de; Maluf,Wilson Roberto; Oliveira,Celso Mattes; Maciel,Gabriel Mascarenhas.
In Brazil, the tomato is cultivated in almost all geographic regions even though its yield is significantly reduced by pests and diseases. Among these pests and diseases, whitefly is a major problem that causes direct and indirect damage due to its role in transmission of geminiviruses. The aim of the present study was to compare the degree of resistance to the silverleaf whitefly of tomato plant lines rich in acyl sugars (AS), zingiberene (ZGB), and 2-tridecanone (2-TD) and to establish whether selection for strains with higher densities of glandular trichomes promotes sufficient resistance to this insect pest. The investigated lines were developed by performing back-crossings in tomato (Solanum lycopersicum) from the interspecific crossing of S....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Solanum lycopersicum; 2-tridecanone; Zingiberene; Acyl sugars; Indirect selection.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000100007
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