Results 1 to 10 of about 406,748 (225)

Resistance mechanisms in Lycopersicon spp. to tomato powdery mildew (Oidium neolycopersici)

open access: yesPlant Protection Science, 2002
Limited information on the resistance mechanisms in Lycopersicon spp. to Oidium neolycopersici is still available. Macroscopically the resistance is characterized by a very low amount of mycelium development and a lack of sporulation.
A. Lebeda   +3 more
doaj   +3 more sources

Development of Bemisia tabaci (Gennadius,1889) biotype B on Lycopersicon spp. genotypes [PDF]

open access: yesScientia Agricola, 2002
Whiteflies are phytophagous insects, whose nymphs and adults suck the phloem sap, causing direct damage due to host plant weakness. In tomato (Lycopersicon spp.) crops, they are important vectors of limiting fitoviruses.
Marilene Fancelli, Vendramim José Djair
doaj   +4 more sources

Case study of host-pathogen interaction: tomato (Lycopersicon spp.)-tomato powdery mildew (Oidium lycopersici) - a review [PDF]

open access: yesPlant Protection Science, 2000
The present paper tries to demonstrate progress and gap of knowledge in plant pathology through the tomato - tomato powdery mildew host-pathogen interaction as a model.
Aleš Lebeda, Barbora Mieslerová
doaj   +3 more sources

COMBINING ABILITY ANALYSIS IN DIALLEL CROSSESِ OF TOMATO ( Lycopersicon Spp.) [PDF]

open access: yesMesopotamia Journal of Agriculture, 2010
An experiment was conducted by using four tomato genotypes vs. (1)the wild species (L.pimpinellifolium) and three varieties of cultivated tomato (Lycopersicon esculentum Mill.) namely (2) Pearson (3) Early Parson (4) mahaly (karmless).The objectives of ...
Majid K.AL-Kummer
doaj   +2 more sources

Natural Occurrence of Viruses in Lycopersicon spp. in Ecuador

open access: yesPlant Disease, 2005
The Andean region is home of important genetic diversity for the genus Lycopersicon. A survey of three asymptomatic populations of L. hirsutum, 17 of L. parviflorum, 188 of L. pimpinellifolium, and four cultivated populations of L. esculentum was made in nine departments of Ecuador.
S, Soler, C, López, F, Nuez
openaire   +3 more sources

A Search for Resistance in Lycopersicon spp. to Nacobbus aberrans [PDF]

open access: yesPlant Disease, 1997
Accessions of Lycopersicon cheesmanii, L. chmielewskii, L. esculentum var. cerasiforme, L.hirsutum, L. parviflorum, L. peruvianum, L. pennellii, L. pimpinellifolium, and three interspecific hybrids of L. peruvianum with L. esculentum, were screened for resistance to the false root-knot nematode (Nacobbus aberrans) in greenhouse tests.
J C, Veremis, G B, Cap, P A, Roberts
openaire   +3 more sources

Susceptibility of Lycopersicon spp. to Ozone Injury1

open access: yesJournal of the American Society for Horticultural Science, 1971
Abstract Accessions, breeding lines, and varieties of Lycopersicon spp. and one accession of Solarium pennellii Correll were evaluated for sensitivity to controlled concentrations of O 3 and to ...
A. G. Gentile   +3 more
openaire   +2 more sources

Physiological mechanism of tolerance of Lycopersicon spp. exposed to salt stress

open access: yesCanadian Journal of Plant Science, 2000
The physiological mechanism of salt tolerance in Lycopersicon spp. was investigated. Ten Lycopersicon spp. were exposed to a gradual NaCl-induced decline in root zone water potential of −0.10 MPa d−1 for 10 d and maintained at −1.065 MPa (221.4 mM NaCl) for a period of 20 d. Growth, water relations and accumulation of ions and compatible solutes, such
Lada R. Rajasekaran   +2 more
openaire   +2 more sources

Toxicidade para lagartas de Phthorimaea operculella (Zell.) dos aleloquímicos 2-tridecanona e 2-undecanona presentes em tomateiro (Lycopersicon spp.) Toxicity of 2-tridecanone and 2-undecanone allelochemicals present in tomato (Lycopersicon spp.) for Phthorimaea operculella (Zell.) larvae

open access: yesScientia Agricola, 1995
Avaliou-se a toxicidade para Phthorimaea operculella (Zell.) dos aleloquímicos 2-trídecanona e 2-undecanona, presentes nos exsudatos glandulares dos tricomas de Lycopersicon spp. Determinou-se a toxicidade dos exsudatos de L. hirsutum f.
M.U. Ventura, J.D. Vendramim
doaj   +2 more sources

Identificación y análisis de secuencias de retrotransposones en Lycopersicon spp

open access: yesRevista Colombiana de Biotecnología, 1999
Secuencias de retrotransposones del tipo Ty3/gypsy fueron identificadas en los genomas de tomate (Lycopersicon esculentum) y otras especies de Lycopersicon por medio de análisis de PCR.
M. Cristancho
doaj   +1 more source

Home - About - Disclaimer - Privacy