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Impact of grafting on sensory profile of tomato landraces in conventional and organic management systems

agosto 11, 2018 Artículos de investigación, Publicaciones, Investigación y transferencia Comments Off on Impact of grafting on sensory profile of tomato landraces in conventional and organic management systems
Títol de la revista: Horticulture, Environment, and Biotechnology
7 d’agost de 2018
Autors: Joan Casals, Aurora Rull, Ramiro González, Roser Romero del Castillo, Joan Simó
DOI: https://doi.org/10.1007/s13580-018-0086-z
 
ABSTRACT
Tomato landrace producers are adopting grafting technology to overcome agronomic deficiencies and increase plant yields.

Landraces are valued for their higher organoleptic quality, so it is important to assess the impact of grafting on their sensory

profile. We studied the influence of ‘Beaufort’ rootstock on agronomic, morphologic, and sensory traits using two landraces

(‘Mando’ and ‘Montgri’) and one commercial cultivar (‘Egara’) as scions in two extreme management systems for tomato

cultivation: conventional/greenhouse and organic/open field. Panel sensory analysis found that grafting onto ‘Beaufort’ had

a negative effect on sensory attributes, reducing sweetness, acidity, and intensity of flavor in the organic system and sweetness

and intensity of flavor in the conventional system. In conventional management, grafting also modified some aspects of

fruit appearance. In the conventional system, grafting significantly increased yield in all the genotypes (mean increase, 52%).

By contrast, in the organic system, grafting increased yield only in the ‘Mando’ landrace (mean increase, 62.3%). As many

genotype Å~ grafting interactions affecting many important commercial traits occurred in both management systems, specific

studies with different rootstock-scion combinations are highly recommended before adopting this technique for producing

landraces with high sensory quality.


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