caa a22 4500 477134998 CHVBK 20180405111715.0 cr unu---uuuuu 170330e19970801xx s 000 0 eng 10.1023/A:1003075427304 doi (NATIONALLICENCE)springer-10.1023/A:1003075427304 Genetic nature of bacterial wilt resistance in tomato (lycopersicon esculentum Mill.) accession La 1421 [Elektronische Daten] [Musa Mohamed, Pathmanathan Umaharan, Ralph Phelps] The genetic nature of bacterial wilt resistance in tomato was studied in two crosses based on the number of days of survival (quantitative) in the field before the appearance of wilt symptoms. Significant differences were observed between generation means in both crosses (LA 1421 × Cascade and LA 1421 × Caraibo). This study indicates that resistance identified in Lycopersicon esculentum var. cerasiforme LA 1421 may be different from that derived from L. pimpinellifolium. However, the genetic mechanism seems to be complex with a duplicate form of epistasis. Results suggest that selection for resistance from crosses between LA 1421 and Cascade should preferably be delayed until a high level of fixation of genes is attained. The variation observed in the F2 and BC2 progeny of the Caraibo cross, suggested that genetic combination between the two resistance sources can lead to higher levels of resistance. Kluwer Academic Publishers, 1997 epistatis nationallicence genetics nationallicence Lycopersicon pimpinellifolium nationallicence Ralstonia solanacearum nationallicence selection nationallicence bacterial wilt nationallicence tomato nationallicence Lycopersicon esculentum nationallicence Mohamed Musa Caroni Research Station, Waterloo Road, Carapichaima, Trinidad aut Umaharan Pathmanathan Department of Plant Science, University of the West Indies, St. Augustine, Trinidad aut Phelps Ralph Department of Plant Science, University of the West Indies, St. Augustine, Trinidad aut Euphytica Kluwer Academic Publishers 96/3(1997-08-01), 323-326 0014-2336 96:3<323 1997 96 10681 https://doi.org/10.1023/A:1003075427304 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1003075427304 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mohamed Musa Caroni Research Station, Waterloo Road, Carapichaima, Trinidad aut NATIONALLICENCE 700 1- Umaharan Pathmanathan Department of Plant Science, University of the West Indies, St. Augustine, Trinidad aut NATIONALLICENCE 700 1- Phelps Ralph Department of Plant Science, University of the West Indies, St. Augustine, Trinidad aut NATIONALLICENCE 773 0- Euphytica Kluwer Academic Publishers 96/3(1997-08-01), 323-326 0014-2336 96:3<323 1997 96 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer