Mapping winegrape quality attributes using portable fluorescence ...

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Cerovic, Z.G., Moise, N., Agati, G., Latouche, G., Ben Ghozlen, N., Meyer, S., 2008. New portableoptical sensors for the assessment of winegrape phenolic maturity based on berry fluorescence. J.Food Comp. Anal. 21, 650-654.Cerovic, Z.G., Moise, N., Agati, G., Latouche, G., Ghozlen, N.B., Meyer, S., 2007. New portableoptical sensors for the assessment of winegrape phenolic maturity based on berry fluorescence. In:Stafford, J.V. (Ed.) Precision Agriculture '07 Wageningen Academic Publishers, Wageningen, pp.poster 035, p. 1-6.Cerovic, Z.G., Ounis, A., Cartelat, A., Latouche, G., Goulas, Y., Meyer, S., Moya, I., 2002. The use ofchlorophyll fluorescence excitation spectra for the nondestructive in situ assessment of UV–absorbingcompounds in leaves. Plant Cell Environ. 25, 1663-1676.Cerovic, Z.G., Samson, G., Morales, F., Tremblay, N., Moya, I., 1999. Ultraviolet-inducedfluorescence for plant monitoring: present state and prospects. Agronomie: Agriculture andEnvironment 19, 543-578.Conde, C., Silva, P., Fontes, N., Dias, A.C.P., Tavares, R., Sousa, M.J., Agasse, A., Delrot, S., Geros,H., 2007. Biochemical changes throughout grape berry development and fruit and wine quality. Food1, 1-22.Demotes-Mainard, S., Boumaza, R., Meyer, S., Cerovic, Z.G., 2008. Indicators of nitrogen status forornamental woody plants based on optical measurements of leaf polyphenolics and chlorophyllcontents. Sci. Hort. 115, 377-385.Gaudillère, J.-P., Van Leeuwen, C., Ollat, N., 2002. Carbon isotope composition of sugars ingrapevine, an integrated indicator of vineyard water status. J. Exp. Bot. 53, 757-763.Goutouly, J.-P., Rousset, D., Perroud, H., Gaudillère, J.-P., 2006a. Characterization of spatial andtemporal soil water status in vineyard by DC resistivity measurements. Actes du VI e CongrèsInternational des Terroirs Viticoles ENITA, Bordeaux-Montpellier, pp. 292-297.Goutouly, J.P., Drissi, R., Forget, D., Gaudillère, J.P., 2006b. Caractérisation de la vigueur de la vignepar indice NDVI mesuré au sol. Actes du VI e Congrès International des Terroirs Viticoles ENITA,Bordeaux-Montpellier, pp. 237-242.Hagen, S.F., Solhaug, K.A., Bengtsson, G.B., Borge, G.I.A., Bilger, W., 2006. Chlorophyllfluorescence as a tool for non-destructive estimation of anthocyanins and total flavonoids in apples.Postharv. Biol. Technol. 41, 156-163.Kolb, C.A., Wirth, E., Kaiser, W.M., Meister, A., Riederer, M., Pfündel, E.E., 2006. Noninvasiveevaluation of the degree of ripeness in grape berries (Vitis vinifera l. cv. Bacchus and Silvaner) bychlorophyll fluorescence. J. Agric. Food Chem. 54, 299-305.Merzlyak, M.N., Melø, T.B., Naqvi, K.R., 2008. Effect of anthocyanins, carotenoids, and flavonols onchlorophyll fluorescence excitation spectra in apple fruit: signature analysis, assessment, modelling,and relevance to photoprotection. J. Exp. Bot. 59, 349-359.10
Meyer, S., Cerovic, Z.G., Goulas, Y., Montpied, P., Desmotes-Mainard, S., Bidel, L., Moya, I.,Dreyer, E., 2006. Relationships between optically assessed polyphenols and chlorophyll content andthe dry mass per leaf area ratio of woody plants: a signature of the carbon and nitrogen balance withinleaf? Plant Cell Environ 29, 1338–1348.Ounis, A., Cerovic, Z.G., Briantais, J.-M., Moya, I., 2001. Dual excitation FLIDAR for the estimationof epidermal UV absorption in leaves and canopies. Remote Sens. Environ. 76, 33-48.Pfündel, E.E., Ben Ghozlen, N., Meyer, S., Cerovic, Z.G., 2007. Investigating UV screening in leavesby two different types of portable UV fluorimeters reveals in vivo screening by anthocyanins andcarotenoids. Photosynth. Res. 93, 205-221.Spayd, S.E., Tarara, J.M., Mee, D.L., Ferguson, J.C., 2002. Separation of sunlight and temperatureeffects on the composition of Vitis vinifera cv. Merlot berries. Am. J. Enol. Vitic. 53, 171-182.Taylor, J., Tisseyre, B., Praat, J.-P., 2005. Bottling good information: mixing tradition and technologyin vineyards. FRUTIC 05, Montpellier France, pp. 719-735.Tisseyre, B., McBratney, A.B., 2008. A technical opportunity index based on mathematicalmorphology for site-specific management: an application to viticulture Precision Agric. 9, 101-113.Table 1. Nomenclature of the Multiplex signals. The fluorescence excitation-emission matrix:emission abbreviation_excitation abbreviation. “=R” stands for reflectance.Excitation (nm)Emission (nm) UV (375) Blue (B) (470) Green (G) (516) Red-Orange (R) (625)YF (590) YF_UV YF_B = R YF_G = R YF_R = RRF (685) RF_UV RF_B RF_G RF_RFRF (735) FRF_UV FRF_B FRF_G FRF_RTable 2. Nomenclature of the Multiplex signal ratios (indices). A sub-sample of the 66 possiblecombinations is presented that is calculated online by the sensor on each individual flash combination.YF_UV RF_G FRF_G RF_R FRF_RFRF_UV BRR_FRF NBI_G - NBI_R FER_RUVFLAVRF_G - - SFR_G - -FRF_G - - - - FER_RGANTHRF_R - - - - SFR_R11
Page 7 and 8: to constant-distance measurements,
Page 9: Literature CitedAdams, D.O., 2006.
Page 13 and 14: Figure 1. Plot characteristics and
Page 15 and 16: Figure 5. Maps of the twelve fluore

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