Results 171 to 180 of about 2,689 (203)

Trichomes of Lycopersicon spp. and their effect on Myzus persicae (Sulzer) (Hemiptera: Aphididae)

Australian Journal of Entomology, 2003
The green peach aphid (Myzus persicae) is becoming resistant to many of the pesticides used in the tomato (Lycopersicon esculentum) industry. A potential alternative method of control is host-plant resistance, which may be mediated by trichomes ...
Aaron T Simmons, Geoff M Gurr
exaly   +2 more sources

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Biochemical aspects of reactive oxygen species formation in the interaction between Lycopersicon spp. and Oidium neolycopersici

Physiological and Molecular Plant Pathology, 2006
Abstract Three Lycopersicon spp. accessions differing in the level of resistance to Oidium neolycopersici L. Kiss (tomato powdery mildew) were studied. Defence reactions occurring in tissue of Lycopersicon esculentum cv. Amateur (susceptible control), Lycopersicon hirsutum f.
Katerina Tománková, Lenka Luhova, Marek Petřivalský   +2 more
exaly   +2 more sources

Recessive resistance genes against potyviruses are localized in colinear genomic regions of the tomato (Lycopersicon spp.) and pepper (Capsicum spp.) genomes

Theoretical and Applied Genetics, 2002
Resistance against both Potato virus Y (PVY) and Tobacco etch virus (TEV) was identified in the wild tomato relative Lycopersicon hirsutum PI247087. Analysis of the segregation ratio in F(2)/F(3) and BC(1) interspecific progenies indicated that a single recessive gene, or two very tightly linked recessive loci, are involved in resistance to both ...
Parrella, G., Ruffel, S., Moretti, A., Morel, C., Palloix, A., Caranta, C.   +5 more
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Quantifying seed germination responses to low temperatures: Variation among Lycopersicon spp.

Environmental and Experimental Botany, 1985
Abstract Seed germination response to a range of low temperatures (6–20°C) was quantified for six accessions of Lycopersicon spp. representing the cultivated tomato L. esculentum (Mill.) and wild relatives L. peruvianum (Mill.) and L. chilense (Dun.).
S. Jeffrey Scott, Richard A. Jones
exaly   +2 more sources

Sources of resistance in Lycopersicon spp. to a bipartite whitefly-transmitted geminivirus from Brazil

Euphytica, 2001
Accessions of Lycopersicon chilense, L. peruvianum, L.hirsutum and sixteen L. esculentum genotypes were evaluated undergreenhouse conditions for resistance to a whitefly-transmitted geminivirusisolate from Brasilia-DF (DF1). Artificial cage inoculation oftomato plants at the two true-leaf stage, using 20 viruliferous whiteflies perplant in individual ...
Flávio Martins Santana, Simone da Graça Ribeiro, Antônio Willians Moita, Domingos José Moreira, Leonardo de Brito Giordano   +4 more
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Cold tolerance in tomato. II. Early seedling growth of Lycopersicon spp.

Physiologia Plantarum, 1986
Hypocotyl and root growth elongation of etiolated seedlings was measured non‐destructively for the wild tomato accessions LA 460 (Lycopersicon chilense Dun.), PI 126435, PI 127831 and PI 127832 (L. peruvianum Mill.) and controls PI 120256 and T3 (L. esculentum Mill.) on slant boards at 10, 15 and 20°C.
S. Jeffrey Scott, R. A. Jones
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Survival and Development of Fruit Borer, Heliothis Armigera (Hübner), (Lepidoptera: Noctuidae) on Lycopersicon Spp.

International Journal of Tropical Insect Science, 1990
Nineteen accessions from seven Lycopersicon species were bioassayed for their resistance to Heliothis armigera (Hubner) (Lepidoptera: Noctuidae) in laboratory tests at 29 ± 1°C and 65 ± 2% r.h. Data on larval developmental duration (days), survival (%) and pupal weights (mg) revealed that maximum resistance to H.
R. K. Kashyap, M. K. Banerjee, null Kalloo, A. N. Verma   +3 more
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Identification of DNA markers linked to fusarium wilt resistance in tomato (Lycopersicon spp.)

2023
Fusarium wilt caused by the fungus Fusarium oxysporum f sp. lycopersici is a disease of tomato (Lycopersicon esculentum Mill.) with major economic importance. The most practical form of controlling this disease is through genetic resistance from related germplasm.
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Competitive interactions of tomato (Lycopersicon esculentum) and nutsedges (Cyperusspp.)

Weed Science, 1997
Replacement series experiments were conducted under greenhouse conditions to evaluate effects of population densities and proportions on the intraspecific and interspecific interference of either purple nutsedge or yellow nutsedge with tomato cv. Sunny, under nonlimiting conditions of water and nutrients.
Bielinski M. Santos, Thomas A. Bewick, William M. Stall, Donn G. Shilling   +3 more
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Salt tolerance in Lycopersicon spp. VII. Pleiotropic action of genes controlling earliness on fruit yield

Theoretical and Applied Genetics, 1999
The change from vegetative to reproductive development (earliness) in Lycopersicon chesmannii line L2 was delayed for 20 weeks when compared to other Lycopersicon species under greenhouse conditions. The interspecific hybrid of L. chesmannii L2 and L. esculentum E9, a cherry tomato cultivar, also showed this delay in reproductive development.
A. J. Monforte, M. J. Asíns, E. A. Carbonell   +2 more
openaire   +1 more source