Data/hora: 12/06/2024 15:30:41

Provedor de dados: 	86	
País: 	Brazil	
Título: 	Fruit size, mineral composition and quality of trickle-irrigated tomatoes as affected by potassium rates	
Autores: 	Fontes,Paulo Cezar Rezende; Sampaio,Regynaldo Arruda; Finger,Fernando Luiz.	
Data: 	2000-01-01	
Ano: 	2000	
Palavras-chave: 	Lycopersicon esculentum; Lycopene; Soluble solids; Acidity.	
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 &gt; 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.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2000000100003	
Editor: 	Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira	
Relação: 	10.1590/S0100-204X2000000100003	
Formato: 	text/html	
Fonte: 	Pesquisa Agropecuária Brasileira  v.35 n.1 2000	
Fonte: 	info:eu-repo/semantics/openAccess