Commercial and nutraceutical quality of grafted melon cultivated under hydric stress

Water stress decreases the quality of fruit by generating reactive oxygen species. Grafting is a technique that can improve the efficiency of crop water usage. This work was performed in order to assess the effect of different water stresses on the commercial and nutraceutical quality of a melon fru...

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Bibliographic Details
Published in:Horticultural science (Praha) 2020-01, Vol.47 (3), p.139-149
Main Authors: Villegas Olguín, Marco Antonio, Cabrera De la Fuente, Marcelino, Benavides Mendoza, Adalberto, Juárez Maldonado, Antonio, Sandoval Rangel, Alberto, Fernandez Cusimamani, Eloy
Format: Article
Language:English
Subjects:
Antioxidants
Ascorbic acid
Catalase
cucumis melo
Fruits
Functional foods & nutraceuticals
Grafting
nutraceuticals
Reactive oxygen species
Superoxide dismutase
Water consumption
Water stress
Water use
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Summary:Water stress decreases the quality of fruit by generating reactive oxygen species. Grafting is a technique that can improve the efficiency of crop water usage. This work was performed in order to assess the effect of different water stresses on the commercial and nutraceutical quality of a melon fruit. Cantaloupe melon plants, grown under shade houses were grafted onto a creole pumpkin rootstock and grown with different water stresses (20, 30, and 40 kPa). The grafted melon plants under 30-kPa water stress (G30) showed greater fruit firmness and increased catalase activity. The G30 fruits showed an increase in GPX activity of up to 80% over the non-grafted plants. The GSH was higher in fruits subjected to the 40-kPa water tension. The superoxide dismutase showed a 15% greater inhibition in the fruits from the non-grafted plants. At higher water tensions, the DPPH antioxidant activity decreased, while the vitamin C content increased.
ISSN:0862-867X
1805-9333
DOI:10.17221/139/2019-HORTSCI