G. Jham

Publications89
h-index24
Citations1,710
Highly Influential Citations73
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Composition and Antifungal Activity of the Essential Oil of the Brazilian Chenopodium ambrosioides L.
The antifungal activity of essential oil (EO) from the Brazilian epazote (Chenopodium ambrosioides L.) was evaluated by the poison food assay at concentrations of 0.3%, 0.1%, and 0.05% with eight… Expand
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Responses of eucalypt species to aluminum: the possible involvement of low molecular weight organic acids in the Al tolerance mechanism.
Aluminum (Al) tolerance mechanisms in crop plants have been extensively researched, but our understanding of the physiological mechanisms underlying Al tolerance in trees is still limited. To… Expand
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Comparison of GC and HPLC for the quantification of organic acids in coffee.
A GC and an HPLC method for the quantification of organic acids OAs in coffee have been compared. The GC procedure, employing trimethylsilyl derivatives, was found to be very tedious. The HPLC… Expand
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Resistance of 57 greenhouse-grown accessions of Lycopersicon esculentum and three cultivars to Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae).
Abstract The aim of this study was to evaluate resistance to Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) by antixenosis on 57 Lycopersicon esculentum Mill. accessions from the Horticultural… Expand
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Chromium contamination in sediment, vegetation and fish caused by tanneries in the state of Minas Gerais, Brazil.
In order to evaluate the chromium contamination from tannery discharges into rivers in the State of Minas Gerais, Brazil, samples of fluvial sediment, vegetation and fish were collected and submitted… Expand
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Identification of the major fungitoxic component of cinnamon bark oil
The study was done to identify the most active fungitoxic component of cinnamon bark (Cinnamomum zeylanicum) oil that can be used as a marker for standardization of cinnamon extract or oil based… Expand
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Glucosinolate content and nematicidal activity of Brazilian wild mustard tissues against Meloidogyne incognita in tomato
The wild mustard (Brassica juncea L.), an invasive weed of winter crops in Brazil, was evaluated for glucosinolate content of its plant tissues and nematicidal activity of its dry leaf meal (LM),… Expand
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Preparative silver ion TLC/RP-HPLC determination of coffee triacylglycerol molecular species
Preparative silver ion thin layer chromatography (Ag-TLC) was utilized for the preparative isolation of triacylglycerol (TAG) classes from cherry coffee beans according to the degree of unsaturation.… Expand
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Lipid classes, fatty acid composition and triacylglycerol molecular species in crude coffee beans harvested in Brazil
Abstract The lipids of crude coffee beans of Catuai Vermalho, Coffea arabica L. harvested in Brazil have been examined as a part of a broader program on their role for the quality of Brazilian… Expand
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(3E,8Z,11Z)-3,8,11-tetradecatrienyl acetate, major sex pheromone component of the tomato pest Scrobipalpuloides absoluta (Lepidoptera: Gelechiidae).
The major sex attractant emitted by Scrobipalpuloides absoluta females is shown to be (3E,8Z,11Z)-3,8,11-tetradecatrien-1-yl acetate by a novel strategy involving the random reduction of double… Expand
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