A Quantitative Management of Potassium Supply for Hydroponic Production of Low-Potassium Cherry-Type Tomato Fruit for Chronic Kidney Disease Patients
Chronic kidney disease (CKD) has been a global health problem in recent years. CKD patients often restrict their potassium (K) intake to avoid the high risk of hyperkalemia. In this study, quantitative K management in hydroponics was adopted to produce low K cherry-type tomato (<i>Solanum lyco...
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MDPI AG
2021-04-01
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| Series: | Horticulturae |
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| Online Access: | https://www.mdpi.com/2311-7524/7/4/87 |
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| author | Satoru Tsukagoshi Miho Aoki Masahumi Johkan Masaaki Hohjo Toru Maruo |
| author_facet | Satoru Tsukagoshi Miho Aoki Masahumi Johkan Masaaki Hohjo Toru Maruo |
| author_sort | Satoru Tsukagoshi |
| collection | DOAJ |
| description | Chronic kidney disease (CKD) has been a global health problem in recent years. CKD patients often restrict their potassium (K) intake to avoid the high risk of hyperkalemia. In this study, quantitative K management in hydroponics was adopted to produce low K cherry-type tomato (<i>Solanum lycopersicom</i> L.) fruit. The total quantity of K supply per plant during the cultivation was 7.2 g (1 K), 3.6 g (1/2 K), 1.8 g (1/4 K), 0.9 g (1/8 K) and 0.6 g (1/12 K), respectively. The total fruit yield decreased to about 75% at 1/2 K and 58% at 1/12 K compared to 1 K. The fruit K content was lower in 1/4 K, 1/8 K and 1/12 K than in 1 K and 1/2 K, and the fruit from 1/8 K and 1/12 K achieved below 100 mg 100 g<sup>−1</sup> FW of K. Total soluble solid content (Brix) was 7–8% in 1 K and 1/4 K but was lower in 1/8 K and 1/12 K. Fruit acid content decreased to 87% in 1/2 K to 70% in 1/4 K and 1/8 K, and to 57% in 1/12 K of 1 K. In conclusion, quantitative K management in hydroponics is expected to produce low K tomato fruit. Fruit K content of approximately 100 mg.100 g<sup>−1</sup> FW was achieved when the quantity of K supply was 1/4 K and 1/8 K, with a relatively smaller effect on fruit yield, Brix and acid content. |
| first_indexed | 2024-03-10T12:11:29Z |
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| language | English |
| last_indexed | 2024-03-10T12:11:29Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
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| series | Horticulturae |
| spelling | doaj.art-629dd1b7c9b745af870498cd16b456482023-11-21T16:11:54ZengMDPI AGHorticulturae2311-75242021-04-01748710.3390/horticulturae7040087A Quantitative Management of Potassium Supply for Hydroponic Production of Low-Potassium Cherry-Type Tomato Fruit for Chronic Kidney Disease PatientsSatoru Tsukagoshi0Miho Aoki1Masahumi Johkan2Masaaki Hohjo3Toru Maruo4Center for Environment, Health and Field Sciences, Chiba University, Kashiwa 277-0882, JapanFaculty of Horticulture, Chiba University, Matsudo 271-8510, JapanGraduate School of Horticulture, Chiba University, Matsudo 271-8510, JapanCenter for Environment, Health and Field Sciences, Chiba University, Kashiwa 277-0882, JapanGraduate School of Horticulture, Chiba University, Matsudo 271-8510, JapanChronic kidney disease (CKD) has been a global health problem in recent years. CKD patients often restrict their potassium (K) intake to avoid the high risk of hyperkalemia. In this study, quantitative K management in hydroponics was adopted to produce low K cherry-type tomato (<i>Solanum lycopersicom</i> L.) fruit. The total quantity of K supply per plant during the cultivation was 7.2 g (1 K), 3.6 g (1/2 K), 1.8 g (1/4 K), 0.9 g (1/8 K) and 0.6 g (1/12 K), respectively. The total fruit yield decreased to about 75% at 1/2 K and 58% at 1/12 K compared to 1 K. The fruit K content was lower in 1/4 K, 1/8 K and 1/12 K than in 1 K and 1/2 K, and the fruit from 1/8 K and 1/12 K achieved below 100 mg 100 g<sup>−1</sup> FW of K. Total soluble solid content (Brix) was 7–8% in 1 K and 1/4 K but was lower in 1/8 K and 1/12 K. Fruit acid content decreased to 87% in 1/2 K to 70% in 1/4 K and 1/8 K, and to 57% in 1/12 K of 1 K. In conclusion, quantitative K management in hydroponics is expected to produce low K tomato fruit. Fruit K content of approximately 100 mg.100 g<sup>−1</sup> FW was achieved when the quantity of K supply was 1/4 K and 1/8 K, with a relatively smaller effect on fruit yield, Brix and acid content.https://www.mdpi.com/2311-7524/7/4/87fruit qualityhydroponicsNFTquantitative fertilizer managementrestriction of potassium supply |
| spellingShingle | Satoru Tsukagoshi Miho Aoki Masahumi Johkan Masaaki Hohjo Toru Maruo A Quantitative Management of Potassium Supply for Hydroponic Production of Low-Potassium Cherry-Type Tomato Fruit for Chronic Kidney Disease Patients Horticulturae fruit quality hydroponics NFT quantitative fertilizer management restriction of potassium supply |
| title | A Quantitative Management of Potassium Supply for Hydroponic Production of Low-Potassium Cherry-Type Tomato Fruit for Chronic Kidney Disease Patients |
| title_full | A Quantitative Management of Potassium Supply for Hydroponic Production of Low-Potassium Cherry-Type Tomato Fruit for Chronic Kidney Disease Patients |
| title_fullStr | A Quantitative Management of Potassium Supply for Hydroponic Production of Low-Potassium Cherry-Type Tomato Fruit for Chronic Kidney Disease Patients |
| title_full_unstemmed | A Quantitative Management of Potassium Supply for Hydroponic Production of Low-Potassium Cherry-Type Tomato Fruit for Chronic Kidney Disease Patients |
| title_short | A Quantitative Management of Potassium Supply for Hydroponic Production of Low-Potassium Cherry-Type Tomato Fruit for Chronic Kidney Disease Patients |
| title_sort | quantitative management of potassium supply for hydroponic production of low potassium cherry type tomato fruit for chronic kidney disease patients |
| topic | fruit quality hydroponics NFT quantitative fertilizer management restriction of potassium supply |
| url | https://www.mdpi.com/2311-7524/7/4/87 |
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