| [faunistic analysis of leafhopper (hemiptera: cicadellidae) species in vineyards of rio grande do sul state, brazil]. | in some american countries, grapevines are affected by pierce's disease (pd), which is caused by a particular strain of xylella fastidiosa not yet reported in brazil. in order to investigate the potential for pd spread in brazil in case of pathogen introduction, we conducted a faunistic analysis of leafhoppers (hemiptera: cicadellidae) associated to vineyards in the state of rio grande do sul, with emphasis in the subfamily cicadellinae (sharpshooters), which includes the main potential vectors ... | 2010 | 20498954 |
| tydeid and triophtydeid mites (acari: tydeoidea) associated with grapevine (vitaceae: vitis spp.) in brazil, with the descriptions of species of prelorryia (andré, 1980) and tydeus koch, 1835. | we report on the tydeidae and triophtydeidae associated with grapevine (vitis labrusca l. and vitis vinifera l.) in rio grande do sul state, brazil, and describe a new species of prelorryia, prelorryia labrusca sp. nov., and two new species of tydeus, tydeus manoi sp. nov. and tydeus riopardensis sp. nov. brachytydeus formosa (cooreman), b. podocarpa (baker), neolorryia pandana (baker), tydeus californicus (banks), pretydeus henriandrei kaźmierski and triophtydeus lebruni (andré) are recorded an ... | 2014 | 24943444 |
| determination of the geographical origin of brazilian wines by isotope and mineral analysis. | in the present research, we studied wines from three different south brazilian winemaking regions with the purpose of differentiating them by geographical origin of the grapes. brazil's wide territory and climate diversity allow grape cultivation and winemaking in many regions of different and unique characteristics. the wine grape cultivation for winemaking concentrates in the south region, mainly in the serra gaúcha, the mountain area of the state of rio grande do sul, which is responsible for ... | 2011 | 21720735 |
| supercritical extraction from vinification residues: fatty acids, α-tocopherol, and phenolic compounds in the oil seeds from different varieties of grape. | supercritical fluid extraction has been widely employed in the extraction of high purity substances. in this study, we used the technology to obtain oil from seeds from a variety of grapes, from vinification residues generated in the southern region of the state of rio grande do sul, brazil. this work encompasses three varieties of vitis vinifera (moscato giallo, merlot, and cabernet sauvignon) and two of vitis labrusca (bordô e isabel), harvested in 2005 and 2006. we obtained the highest oil co ... | 2012 | 22593706 |