Production and quality of mini watermelon under salt stress and K+/Ca2+ ratios

ABSTRACT Nutritional management can be an efficient strategy to mitigate the effects of salinity on fruit production and quality. This study aimed to evaluate the production and quality of fruits of mini watermelon crop, Sugar Baby cultivar, grown in a protected environment, under salt stress and K+...

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Main Authors: Aline da S. Alves, Francisco de A. de Oliveira, Daisy D. da Silva, Sandy T. dos Santos, Renata R. T. Oliveira, Helena M. de M. N. Góis
Format: Article
Language:English
Published: Universidade Federal de Campina Grande 2023-03-01
Series:Revista Brasileira de Engenharia Agrícola e Ambiental
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Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662023000600441&lng=en&tlng=en
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author Aline da S. Alves
Francisco de A. de Oliveira
Daisy D. da Silva
Sandy T. dos Santos
Renata R. T. Oliveira
Helena M. de M. N. Góis
author_facet Aline da S. Alves
Francisco de A. de Oliveira
Daisy D. da Silva
Sandy T. dos Santos
Renata R. T. Oliveira
Helena M. de M. N. Góis
author_sort Aline da S. Alves
collection DOAJ
description ABSTRACT Nutritional management can be an efficient strategy to mitigate the effects of salinity on fruit production and quality. This study aimed to evaluate the production and quality of fruits of mini watermelon crop, Sugar Baby cultivar, grown in a protected environment, under salt stress and K+/Ca2+ ratios. The study was carried out in a greenhouse, using a randomized block design, 1 + 5 scheme, resulting in six treatments and four replications. Six nutrient solutions were employed, one using low-salinity water, with NaCl (0.5 dS m-1) and standard nutrient solution (S1, control treatment), and the others using salinized water at 5.0 dS m-1 (S2) and extra addition of K (S3 = 50% and S4 = 100%) and Ca (S5 = 50% and S6 = 100%). The production (fruit production, longitudinal and transverse diameter of fruit, rind thickness, pulp firmness) and postharvest quality (soluble solids, vitamin C, titratable acidity, and maturation index), in addition to the variables related to the color of the pulp (lightness, chroma index, and Hue angle) were evaluated. The addition of NaCl reduced fruit production, longitudinal, and transverse diameter of fruit, rind thickness, and vitamin C content. Among saline nutrient solutions, extra addition of 50% K (S3) attenuates the deleterious effects of salt stress on the production variables and vitamin C content. Under salt stress, extra addition of 50% K (S3) and 100% Ca (S6) intensifies the red color of the pulp.
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spelling doaj-art-e834d1047ef343558c97860364d0460d2025-08-20T03:04:02ZengUniversidade Federal de Campina GrandeRevista Brasileira de Engenharia Agrícola e Ambiental1807-19292023-03-0127644144610.1590/1807-1929/agriambi.v27n6p441-446Production and quality of mini watermelon under salt stress and K+/Ca2+ ratiosAline da S. Alveshttps://orcid.org/0000-0002-5668-1541Francisco de A. de Oliveirahttps://orcid.org/0000-0002-6895-7736Daisy D. da Silvahttps://orcid.org/0000-0003-4897-0017Sandy T. dos Santoshttps://orcid.org/0000-0001-6487-555XRenata R. T. Oliveirahttps://orcid.org/0000-0002-7365-8271Helena M. de M. N. Góishttps://orcid.org/0000-0002-9210-6296ABSTRACT Nutritional management can be an efficient strategy to mitigate the effects of salinity on fruit production and quality. This study aimed to evaluate the production and quality of fruits of mini watermelon crop, Sugar Baby cultivar, grown in a protected environment, under salt stress and K+/Ca2+ ratios. The study was carried out in a greenhouse, using a randomized block design, 1 + 5 scheme, resulting in six treatments and four replications. Six nutrient solutions were employed, one using low-salinity water, with NaCl (0.5 dS m-1) and standard nutrient solution (S1, control treatment), and the others using salinized water at 5.0 dS m-1 (S2) and extra addition of K (S3 = 50% and S4 = 100%) and Ca (S5 = 50% and S6 = 100%). The production (fruit production, longitudinal and transverse diameter of fruit, rind thickness, pulp firmness) and postharvest quality (soluble solids, vitamin C, titratable acidity, and maturation index), in addition to the variables related to the color of the pulp (lightness, chroma index, and Hue angle) were evaluated. The addition of NaCl reduced fruit production, longitudinal, and transverse diameter of fruit, rind thickness, and vitamin C content. Among saline nutrient solutions, extra addition of 50% K (S3) attenuates the deleterious effects of salt stress on the production variables and vitamin C content. Under salt stress, extra addition of 50% K (S3) and 100% Ca (S6) intensifies the red color of the pulp.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662023000600441&lng=en&tlng=enCitrullus lanatussalinitypotassium supplementationcalcium supplementation
spellingShingle Aline da S. Alves
Francisco de A. de Oliveira
Daisy D. da Silva
Sandy T. dos Santos
Renata R. T. Oliveira
Helena M. de M. N. Góis
Production and quality of mini watermelon under salt stress and K+/Ca2+ ratios
Revista Brasileira de Engenharia Agrícola e Ambiental
Citrullus lanatus
salinity
potassium supplementation
calcium supplementation
title Production and quality of mini watermelon under salt stress and K+/Ca2+ ratios
title_full Production and quality of mini watermelon under salt stress and K+/Ca2+ ratios
title_fullStr Production and quality of mini watermelon under salt stress and K+/Ca2+ ratios
title_full_unstemmed Production and quality of mini watermelon under salt stress and K+/Ca2+ ratios
title_short Production and quality of mini watermelon under salt stress and K+/Ca2+ ratios
title_sort production and quality of mini watermelon under salt stress and k ca2 ratios
topic Citrullus lanatus
salinity
potassium supplementation
calcium supplementation
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662023000600441&lng=en&tlng=en
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