The research evaluates the influence of some selected rootstocks on the C. melo L. subsp. melo var. inodorus H. Jacq. (honeydew melon) cv. Incas fruit quality. Four Cucurbita maxima×. Cucurbita moschata hybrids (namely Polifemo, AS10, RS841 and P360) and two genotypes of melon (Energia and Sting), selected for their disease resistance, were tested as rootstocks under greenhouse conditions. Physical properties, chemical data, volatile constituents and sensory descriptors were used for quality determination. All the used rootstocks exhibited a good affinity with the scion, with Polifemo and RS841 showing a productivity higher (about 15%) and a significant increase in fruit weight (about 10%) than the control. As regards the titratable acidity (TA) and the total soluble solids (TSS), similar values resulted among the samples, except for the higher levels of TA in Incas/AS10 and Incas/Sting and the higher of TSS in Incas/AS10. As regards the volatile compounds, the content of key aroma, aldehydes containing a straight nine-carbon chain, such (Z)-3-nonen-1-ol and (Z)-6-nonenal resulted lower in most of the grafted samples (20-60% and 8-45% less than the control, respectively). In relation to the key aroma compounds, the melons grafted on Energia, RS841, P360 and Polifemo rootstocks resulted more similar to the control. 14 sensory descriptors were defined for the appearance, aroma, taste, texture traits, flavor and overall. Energia grafting combination presented the sensory descriptor intensities more close to the ungrafted Incas samples. In conclusion, the quality of the grafted inodorus melon fruits was modified in a different way according to the grafting combinations; RS841 and Polifemo can be successfully used as rootstocks for the inodorus melon since they increased disease resistance and productivity without determining relevant changes on fruity quality. © 2014 Elsevier B.V.

Export Date: 7 November 2014References: Alexopoulos, A.A., Kondylis, A., Passam, H.C., Fruit yield and quality of watermelon in relation to grafting (2007) J. Food Agric. Environ., 5, pp. 178-179;(1990) Official Methods of Analysis, , Association of Official Analytical Chemists, Washington, DC, AOAC; Ashurst, P.R., (1999) Food Flavorings, , Springer; Beaulieu, J.C., Within-season volatile and quality differences in stored fresh-cut cantaloupe cultivars (2005) J. Agric. Food Chem., 53, pp. 8679-8687; Bonomo, G., Ferro, F., Girgenti, P., Parrinello, A.M., Il melone d’inverno conquista proseliti (2004) Colture Protette, 3, pp. 44-46; Bruton, B.D., Fish, W.W., Roberts, W., Popham, T.W., The influence of rootstock selection on fruit quality attributes of watermelon (2009) Open Food Sci., 3, pp. 15-34; Colaric, M., Veberic, R., Stampar, F., Hudina, M., Evaluation of peach and nectarine fruit quality and correlations between sensory and chemical attributes (2005) J. Sci. Food Agric., 85, pp. 2611-2616; Condurso, C., Verzera, A., Dima, G., Tripodi, G., Crinò, P., Paratore, A., Romano, D., Effects of different rootstocks on aroma volatile compounds and carotenoid content of melon fruits (2012) Sci. Hortic., 148, pp. 9-16; Crinò, P., Lo Bianco, C., Rouphael, Y., Colla, G., Saccardo, F., Paratore, A., Evaluation of rootstock resistance to fusarium wilt and gummy stem blight and effect on yield and quality of a grafted òinodorus’ melon (2007) HortScience, 42, pp. 521-525; Dos-Santos, N., Bueso, M.C., Fernández-Trujillo, J.P., Aroma volatiles as biomarkers of textural differences at harvest in non-climacteric near-isogenic lines of melon (2013) Food Res. Intl., 54, pp. 1801-1812; Escribano, S., Sanchez, F.J., Lazaro, A., Establishment of a sensory characterization protocol for melon (Cucumis melo L.) and its correlation with physical-chemical attributes: indications for future genetic improvements (2010) Euro. Food Res. Technol., 231, pp. 611-621; Esti, M., Messia, M.C., Sinesio, F., Nicotra, A., Conte, L., La Notte, E., Palleschi, G., Quality evaluation of peaches and nectarines by electrochemical and multivariate analyses: relationships between analytical measurements and sensory attributes (1997) Food Chem., 60, pp. 659-666; Fernández-Trujillo, J.P., Bueso, M.C., Hernández, M.S., Quality oriented breeding using sensory attributes in melon: the case of climacteric and non-climacteric near-isogenic lines obtained from non-climacteric parents (2012) Acta Hort., 934, pp. 975-984; Flores, F., El Yahyaoui, F., de Billerbeck, G., Romojaro, F., Latché, A., Bouzayen, M., Pech, J.C., Ambid, C., Role of ethylene in the biosynthetic pathway of aliphatic ester aroma volatiles in Charentais Cantaloupe melons (2002) J. Exp. Bot., 53, pp. 201-206; Glala, A.A., Mostafa, B.E., Omran, S., Impending towards Egyptian consumer preference as melon fruit flesh visual and taste quality definitions (2008) Cucurbitaceae 2008, Proceedings of the IXth EUCARPIA Meeting on Genetics and Breeding of Cucurbitaceae, pp. 641-647. , M. Pitrat (Ed.); Hampson, C.R., Quamme, H.A., Hall, J.W., MacDonald, R.A., King, M.C., Cliff, M.A., Sensory evaluation as a selection tool in apple breeding (2000) Euphytica, 111, pp. 79-90; Harker, F.R., Johnston, J., Importance of texture in fruit and its interaction with flavor (2008) Fruit and Vegetable Flavour: Recent Advances and Future Prospects, 7, pp. 254-271. , Woodhead Pub. Ltd., Abington, Cambridge, UK; Kappel, F., Fisher-Fleming, B., Hogue, E., Fruit characteristics and sensory attributes of an ideal sweet cherry (1996) HortScience, 31, pp. 443-446; Kappel, F., Fisher-Fleming, R., Hogue, E.J., Ideal pear sensory attributes and fruit characteristics (1995) HortScience, 30, pp. 988-993; Kourkoutas, D., Elmore, J.S., Mottram, D.S., Comparison of the volatile compositions and flavour properties of cantaloupe, Galia and honeydew muskmelons (2006) Food Chem., 97, pp. 95-102; Lee, J.M., Cultivation of grafted vegetables I. Current status, grafting methods, and benefits (1994) HortScience, 29, pp. 235-239; Louws, F.K., Rivard, C.L., Kubota, C., Grafting fruiting vegetables to manage soilborne pathogens, foliar pathogens, arthropods and weeds (2010) Sci. Hortic., 127, pp. 127-146; Obando-Ulloa, J.M., Eduardo, I., Monforte, A.J., Fernandez-Trujillo, J.P., Identification of QTLs related to sugar and organic acid composition in melon using near-isogenic lines (2009) Sci. Hortic., 121, pp. 425-433; Obando-Ulloa, M., Moreno, E., Garcia-Mas, J., Nicolai, B., Lammertync, J., Monforte, A.J., Fernandez-Trujillo, J.P., Climacteric or non-climacteric behavior in melon fruit: 1. Aroma volatiles (2008) Postharvest Biol. Technol., 49, pp. 27-37; Perry, P.L., Wang, Y., Lin, J., Analysis of honeydew melon (Cucumis melo var. inodorus) flavour and GC-MS/MS identification of (E, Z)-2,6-nonadienyl acetate (2009) Flav. Fragr., 24, pp. 341-347; Rouphael, Y., Schwarz, D., Krumbein, A., Colla, G., Impact of grafting on product quality of fruit vegetables (2010) Sci. Hortic., 127, pp. 172-179; Schiffman, H.R., (1996) Sensation and Perception: An Integrated Approach, , John Wiley & Sons, New York; (2003) Sensory Analysis - Method for Establishing a Sensory Profile in Foodstuffs and Beverages, , UNI: Ente Nazionale Italiano di Unificazione, Milano, Italia, UNI 10957; (2010) Sensory Analysis - General Guidance for the Design of Test Rooms, , UNI: Ente Nazionale Italiano di Unificazione, Milano, Italia, UNI EN ISO 8589; Van den Dool, H., Kratz, P.D., A generalization of the retention index system including linear temperature programmed gas-liquid partition chromatography (1963) J. Chromatogr., 11, pp. 463-471; Verzera, A., Dima, G., Tripodi, G., Ziino, M., Lanza, C.M., Mazzaglia, A., Fast quantitative determination of aroma volatile constituents in melon fruits by headspace solid-phase microextraction and gas chromatography mass spectrometry (2011) Food Anal. Meth., 4, pp. 141-149; Wang, Y.H., Behera, T.K., Kole, C., (2011) Genetics, Genomics and Breeding of Cucurbits, , CRC Press