Résultat de la recherche
138 recherche sur le mot-clé
'Biotype' 
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L. Wilhoit ; T. Mittler | 1991article/chapitre/communication
A survey was made to assess the biotype status of populations of the whitefly Bemisia tabaci (Gennadius) in Spain. The study involved observation of the squash silver leaf reaction, analysis of esterase patterns and application of a RAPD-PCR tec[...]article/chapitre/communication
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J. Cartier ; A. Isaak ; R. Painter ; E. Sorensen | 1965article/chapitre/communication
J. Auclair | 1978article/chapitre/communication
M. Nielson ; Harold Don. ; M. Schonhorst ; W. Lehman ; V. Marble | 1970thèse/mémoire
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A. Morgham ; P. Richardson ; R. Campbell ; J. Burd ; R. Eikenbary ; L. Sumner | 1994Biotype E greenbugs, Schizaphis graminum (Rondani), were allowed to feed for at least 1 h on leaves of resistant and susceptible wheat, Triticum aestivum L. Cellular responses were studied using transmission electron microscopy. Greenbugs caused[...]article/chapitre/communication
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F. Aikhionbare ; K. Pruess ; Z. Mayo | 1998article/chapitre/communication
D. Porter ; J. Burd ; K. Shufran ; J. Webster ; G. Teetes | 1997Future advances in wheat, Triticum aestivum L., and sorghum, Sorghum bicolor (L.) Moench, resistance to greenbug, Schizaphis graminum (Rondani), will likely come from introduction of resistance transgenes into high-performance cultivars. First-g[...]article/chapitre/communication
L. Birkle ; A. Douglas | 1999Genetic diversity in the pea aphid Acyrthosiphon pisum was investigated by a restriction fragment length polymorphism (RFLP) analysis of three maternally inherited genomes (mitochondrial DNA and plasmids of the symbiotic bacteria Buchnera). Twen[...]article/chapitre/communication
A. Zarrabi ; R. Berberet ; J. Caddel | 1995Symptoms of susceptibility to Acyrthosiphon kondoi Shinji in previously resistant alfalfas were observed in 1991 in Oklahoma. In a series of experiments conducted with A. kondoi collected in 1991 and 1992, the aphids proved to be much more virul[...]article/chapitre/communication
R. Bowling ; G. Wilde ; D. Margolies | 1998Greenbugs, Schizaphis graminum (Rondani),present a well-documented example of the ability of insects to overcome designed host plant resistance. Four greenbug biotypes have been identified on wheat, Triticum aestivum L., and 3 on sorghum, Sorghu[...]
