| Registro completo |
| Provedor de dados: |
PAB
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| País: |
Brazil
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| Título: |
Fruit size, mineral composition and quality of trickle-irrigated tomatoes as affected by potassium rates
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| Autores: |
Fontes,Paulo Cezar Rezende
Sampaio,Regynaldo Arruda
Finger,Fernando Luiz
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| Data: |
2000-01-01
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| Ano: |
2000
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| Palavras-chave: |
Lycopersicon esculentum
Lycopene
Soluble solids
Acidity
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| Resumo: |
An experiment was conducted to determine the fruit size, mineral composition and quality of trickle-irrigated tomatoes as affected by potassium fertilizer rates. Six potassium (K) rates were applied as KCl, corresponding to 0, 48.4, 118.6, 188.8, 259.0 and 399.4 kg ha-1, with four replicates, following a randomized block design. Quadratic responses to K rates were observed for double extra large (diameter > 60 mm), extra large (56 to 60 mm) and large (52 to 56 mm) fruit yields. Maximum yields of these classes were achieved with K rates of 116, 190 and 233 kg ha-1, respectively. Fruit dry matter, phosphorus, sulfur and magnesium contents were not affected by K rates, but nitrate and K contents showed significant increments as K rates were increased. Vitamin C, total soluble solids, lycopene and beta-carotene contents in the fruits were not affected by K rates. Increments in the K rate lowered the fruit pH and increased total acids content.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2000000100003
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| Editor: |
Embrapa Secretaria de Pesquisa e Desenvolvimento
Pesquisa Agropecuária Brasileira
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| Relação: |
10.1590/S0100-204X2000000100003
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| Formato: |
text/html
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| Fonte: |
Pesquisa Agropecuária Brasileira v.35 n.1 2000
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| Direitos: |
info:eu-repo/semantics/openAccess
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