The nitrogen (N) critical level in leaves and maximum technical efficiency (MTE) doses contribute to the grape yield, must quality, fertilizers rationalization. This study aimed define sufficient ranges levels obtain high yields quality grapevines grown sandy soil a subtropical climate. ‘Chardonnay’ ‘Pinot Noir’ were subjected annual application of 0, 10, 20, 40, 60, 80 kg N ha−1 vineyard. conc...

Vis-NIRS, MIRS, and a combination of both coupled with PLS machine learning were applied to i) trace the composed proportions different apple varieties in formulated purees ii) predict quality characteristics from spectral information initial puree cultivars. The models could estimate each cultivar mixtures using MIR spectra (RMSEP<8.1%, RPD> 3.6), especially for Granny Smith (RMSEP = 2.7%, RPD...

Modified starch is synthesized to change the physical and chemical properties, one of which solubility. Two new things were produced in substitution process, namely modifications final stage (workup) reaction each substituent, changes neutralization stage/carboxymethyl solids using 30% CH3COOH use methanol pro-analyst sulfonate deposition process. The results solubility test showed that at room...

Hardy kiwifruit fits into consumer expectations, especially in terms of taste and nutritional value. The main reason for the loss quality is that fruit softens too quickly, but storage at low temperatures (0–1 °C) not effective enough maintaining high quality. Two cultivars were evaluated quality, i.e., ‘Geneva’ ‘Ananasnaya’. Minikiwi harvested two stages maturity. treated with 1-methylcyclopro...

Various formulations of petroleum fractions in the light lubricating oil range provide efficient general insecticides for control of insect pests of citrus and have been used for this purpose for many years. The relatively low cost and high insecticidal efficiency of these materials make it probable that their widespread use in citrus culture will continue for some time. Many types of injury to...

Presently, there is no information available about the effect of bunch compactness and berry thinning methods on wine grape quality sensory attributes in ‘Monastrell’ cultivar. Thus, main aim present study was to determine influence two methods, which consisted reduction 25% 50% number berries each bunch, organoleptic this Non-compact bunches both showed a significant total yield, compactness, ...

The effect of UV-C radiation (in vitro tests: 4 W m-2, for 20 min) on the conidia four more frequent and abundant molds isolated from blueberry (Aspergillus niger, Arthrinium phaeospermun, Penicillium decumbens, Eurotium repens) was modeled. reduction in mold counts occurred up to 10 minutes treatment. selected treatment applied samples inoculated with two most resistant vivo Aspergillus niger ...

Objective: To determine the main indices of evolution postharvest maturity theAtaulfo mango from Soconusco, Chiapas, Mexico.Design/methodology/approach: The analyzed variables were color skin L*, a* and b*, starch, total soluble solids (°Brix), pH, instrumental firmness, color/skin firmness correlation.Results: It was found that, as fruit progresses, stage 1 to 5, values L, TSS pH also increase...

The capacity of honey to break light is used for refractometric determination humidity. In the present work, a manual refractometer was measure total soluble solids (73% - 86%) which are corresponding values refractive indices stated in Chataway’s Table. relationship between solids, water content and index obtained graphics gave equations that could be directly calculate both from its solids. T...

the aim of this study was to determine the concentration of free residual chlorine in the effluent at different concentrations of chlorine injection, between 50 to 350 ppm, at the ph levels of 6, 6.5 and 7 and the effect of chlorination on ph, electrical conductivity and the concentration of total dissolved solids in drinking water and effluent. the results showed that the concentration of free...