Data/hora: 10/06/2024 04:59:43

Provedor de dados: 	75	
País: 	Brazil	
Título: 	Electrical conductivity and pH of the substrate solution in gerbera cultivars under fertigation	
Autores: 	Ludwig,Fernanda; Fernandes,Dirceu M; Mota,Poliana RD; Bôas,Roberto L Villas.	
Data: 	2013-09-01	
Ano: 	2013	
Palavras-chave: 	Gerbera jamesonii; Floriculture; 'pourthru' method.	
Resumo: 	The quality and the profitability on floriculture are intimately linked to the adequate plant nutrition. In the present research we aimed to evaluate the electrical conductivity (EC) and pH of the substrate solution on four different gerbera cultivars subjected to fertigation, with two nutritive solutions. The experiment was carried out in a greenhouse, from May to July 2006, on the Universidade Estadual Paulista, Botucatu, São Paulo state, Brazil. The experiment was carried out under an experimental design of random blocks, in 4×2 factorial arrangement, with four Gerbera cultivars (Cherry, Golden Yellow, Salmon Rose and Orange) and two nutritive solution concentrations: 0.92 and 1.76 dS m-1 EC) during the vegetative stage, and 1.07 and 2.04 dS m-1 during the reproductive stage (S1 and S2, respectively). The nutrients were applied through fertigation, manually performed every day. The EC and pH values of the substrate solution were evaluated weekly, using the 'pourthru' method. Orange and Cherry cultivars had, respectively, the highest and the lowest electrical conductivity of the substrate solution, and Cherry was the most efficient on the nutrient uptake. The solution S2 showed a trend to accumulate salts in the substrate, but without visual symptoms of plant toxicity, leading to the lowest pH values. The 'pourthru' method was efficient when compared to the 1:2 method and can be adopted for substrate solution analysis in gerbera culture.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362013000300003	
Editor: 	Associação Brasileira de Horticultura	
Relação: 	10.1590/S0102-05362013000300003	
Formato: 	text/html	
Fonte: 	Horticultura Brasileira  v.31 n.3 2013	
Fonte: 	info:eu-repo/semantics/openAccess