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Solanum aethiopicum gr. gilo and Its Interspecific Hybrid with S. melongena as Alternative Rootstocks for Eggplant: Effects on Vigor, Yield, and Fruit Physicochemical Properties of Cultivar ′Scarlatti′

1
Dipartimento Scienze Agrarie, Alimentari e Forestali, Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy
2
Consiglio per la Ricerca in Agricoltura e l’Analisi dell’Economia Agraria CREA-GB, Centro di Ricerca Genomica e Bioinformatica, Via Paullese, 26836 Montanaso Lombardo (LO), Italy
3
Consiglio per la Ricerca in Agricoltura e l’Analisi dell’Economia Agraria CREA-OF, Centro di Ricerca Orticoltura e Florovivaismo, Via Cavalleggeri, 84098 Pontecagnano-Faiano, Italy
*
Author to whom correspondence should be addressed.
Agronomy 2019, 9(5), 223; https://doi.org/10.3390/agronomy9050223
Received: 26 February 2019 / Revised: 23 April 2019 / Accepted: 29 April 2019 / Published: 30 April 2019
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Abstract

Grafting is generally considered effective in ameliorating vegetable crop tolerance to biotic and abiotic stresses. The use of interspecific hybrid as rootstock for eggplant may represent a valid alternative approach to enhance eggplant performance. However, studies on the effects of different rootstocks on eggplant plant vigor, yield, and fruit quality traits often show conflicting results. Thus, an experiment was performed in two spring–summer growing seasons (2014 and 2015) by grafting eggplant ′Scarlatti′ F1 hybrid on two accessions of S. aethiopicum gr. gilo and on the interspecific hybrid S. melongena × S. aehtiopicum gr. gilo in comparison to the most common eggplant rootstock S. torvum. Results indicate that S. melongena × S. aethiopicum gr. gilo interspecific hybrid and S. torvum improved grafting success, plant vigor, early flowering and yield in ′Scarlatti′ F1 scion. All rootstocks tested did not negatively influence fruit apparent quality traits and fruit quality composition. Moreover, fruit glycoalkaloids content remained below the recommended threshold value. These findings suggest that the use of S. melongena × S. aethiopicum gr. gilo interspecific hybrid as rootstock may be a good alternative to the most commonly used S. torvum. View Full-Text
Keywords: wild eggplant relative; interspecific hybrid; scion/rootstock combination; plant vigour; yield; fruit quality attributes wild eggplant relative; interspecific hybrid; scion/rootstock combination; plant vigour; yield; fruit quality attributes
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Sabatino, L.; Iapichino, G.; Rotino, G.L.; Palazzolo, E.; Mennella, G.; D’Anna, F. Solanum aethiopicum gr. gilo and Its Interspecific Hybrid with S. melongena as Alternative Rootstocks for Eggplant: Effects on Vigor, Yield, and Fruit Physicochemical Properties of Cultivar ′Scarlatti′. Agronomy 2019, 9, 223.

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