WATER AVAILABILITY AND POTASSIUM DOSES IN CHERRY TOMATO QUALITY

ABSTRACT The quality of cherry tomato fruits is directly related to the management strategies used in the production system, such as irrigation and fertilization. This study aimed to assess the quality of cherry tomato fruits cultivated under water availability and potassium fertilization. The exper...

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Main Authors: Tonny J. A. da Silva, Adriano B. Pacheco, Edna M. Bonfim-Silva, Thiago F. Duarte
Format: Article
Language:English
Published: Sociedade Brasileira de Engenharia Agrícola 2018-09-01
Series:Engenharia Agrícola
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000500657&tlng=en
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author Tonny J. A. da Silva
Adriano B. Pacheco
Edna M. Bonfim-Silva
Thiago F. Duarte
author_facet Tonny J. A. da Silva
Adriano B. Pacheco
Edna M. Bonfim-Silva
Thiago F. Duarte
author_sort Tonny J. A. da Silva
collection DOAJ
description ABSTRACT The quality of cherry tomato fruits is directly related to the management strategies used in the production system, such as irrigation and fertilization. This study aimed to assess the quality of cherry tomato fruits cultivated under water availability and potassium fertilization. The experiment was carried out in a greenhouse in pots of 12 dm3 of an Oxisol. The experimental design was a randomized block design in a 52 fractional factorial arrangement with five water availabilities in the soil (4, 14, 24, 34, and 44 -kPa), five potassium doses (0, 125, 250, 375, and 500 mg dm−3) and with four blocks. Irrigation was performed with a semi-automated drip irrigation system with soil moisture monitoring by the Diviner 2000® capacitance probe. The assessed variables in fruits were longitudinal and transversal diameter and pulp thickness, fruit shape index, total soluble solids (SS), titratable acidity (TA), the SS/TA ratio, and vitamin C. The data were submitted to statistical analyses at 5% probability error, with analysis of variance by the F-test and polynomial regression. Fruit size presents a reduction as water availability decreased. The total soluble solids have a higher concentration at a potassium dose of 326 mg dm−3. The quality of cherry tomato fruits cultivated in an Oxisol is influenced by water availability and potassium doses.
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spelling doaj.art-c43fdeae4e454f79a60edd0b5c6bb5812022-12-22T04:12:23ZengSociedade Brasileira de Engenharia AgrícolaEngenharia Agrícola0100-69162018-09-0138565766410.1590/1809-4430-eng.agric.v38n5p657-664/2018WATER AVAILABILITY AND POTASSIUM DOSES IN CHERRY TOMATO QUALITYTonny J. A. da SilvaAdriano B. PachecoEdna M. Bonfim-SilvaThiago F. DuarteABSTRACT The quality of cherry tomato fruits is directly related to the management strategies used in the production system, such as irrigation and fertilization. This study aimed to assess the quality of cherry tomato fruits cultivated under water availability and potassium fertilization. The experiment was carried out in a greenhouse in pots of 12 dm3 of an Oxisol. The experimental design was a randomized block design in a 52 fractional factorial arrangement with five water availabilities in the soil (4, 14, 24, 34, and 44 -kPa), five potassium doses (0, 125, 250, 375, and 500 mg dm−3) and with four blocks. Irrigation was performed with a semi-automated drip irrigation system with soil moisture monitoring by the Diviner 2000® capacitance probe. The assessed variables in fruits were longitudinal and transversal diameter and pulp thickness, fruit shape index, total soluble solids (SS), titratable acidity (TA), the SS/TA ratio, and vitamin C. The data were submitted to statistical analyses at 5% probability error, with analysis of variance by the F-test and polynomial regression. Fruit size presents a reduction as water availability decreased. The total soluble solids have a higher concentration at a potassium dose of 326 mg dm−3. The quality of cherry tomato fruits cultivated in an Oxisol is influenced by water availability and potassium doses.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000500657&tlng=enSoil waterDiviner 2000Lycopersicon esculentumMill
spellingShingle Tonny J. A. da Silva
Adriano B. Pacheco
Edna M. Bonfim-Silva
Thiago F. Duarte
WATER AVAILABILITY AND POTASSIUM DOSES IN CHERRY TOMATO QUALITY
Engenharia Agrícola
Soil water
Diviner 2000
Lycopersicon esculentum
Mill
title WATER AVAILABILITY AND POTASSIUM DOSES IN CHERRY TOMATO QUALITY
title_full WATER AVAILABILITY AND POTASSIUM DOSES IN CHERRY TOMATO QUALITY
title_fullStr WATER AVAILABILITY AND POTASSIUM DOSES IN CHERRY TOMATO QUALITY
title_full_unstemmed WATER AVAILABILITY AND POTASSIUM DOSES IN CHERRY TOMATO QUALITY
title_short WATER AVAILABILITY AND POTASSIUM DOSES IN CHERRY TOMATO QUALITY
title_sort water availability and potassium doses in cherry tomato quality
topic Soil water
Diviner 2000
Lycopersicon esculentum
Mill
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000500657&tlng=en
work_keys_str_mv AT tonnyjadasilva wateravailabilityandpotassiumdosesincherrytomatoquality
AT adrianobpacheco wateravailabilityandpotassiumdosesincherrytomatoquality
AT ednambonfimsilva wateravailabilityandpotassiumdosesincherrytomatoquality
AT thiagofduarte wateravailabilityandpotassiumdosesincherrytomatoquality