Data/hora: 09/06/2024 09:30:17

Provedor de dados: | 124
País: | Brazil
Título: | Macronutrients deficiency in Heliconia psittacorum x Heliconia spathocircinata 'Golden Torch'
Autores: | Castro,Ana Cecília Ribeiro de; Willadino,Lilia Gomes; Loges,Vivian; Castro,Mario Felipe Arruda de; Aragão,Fernando Antonio Souza de.
Data: | 2015-06-01
Ano: | 2015
Palavras-chave: | Heliconia; Symptomatology; Nutrition; Tropical flowers.
Resumo: | The objective of this study was to characterize nutritional deficiencies in Heliconia psittacorum x Heliconia spathocircinata 'Golden Torch', through growth indicators, symptomatology and macronutrients contents in leaves and underground plant part. The experiment was carried out in a greenhouse, with eight treatments comprising complete nutrition solution (N, P, K, Ca, Mg, S), solution with individual nutrient omission of N, P, K, Ca, Mg or S and solution lacking all nutrients. The symptoms of nutrients deficiency appeared in the following occurrence order: N, K, P, Mg and S. Deficiency symptoms were: general chlorosis to - N omission; slight chlorosis to - P and - S; dark green leaves and necrosis to - K; marginal chlorosis and necrosis to - Mg. Calcium omission did not cause any visual symptom. Deficiencies in N and P affected more intensely shoot number, leaf dry mass production, total leaf number and leaf area. Among the evaluated leaves, there was a tendency of a highest decrease in the contents in the third leaf.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902015000200258
Editor: | Universidade Federal do Ceará
Relação: | 10.5935/1806-6690.20150005
Formato: | text/html
Fonte: | Revista Ciência Agronômica  v.46 n.2 2015
Fonte: | info:eu-repo/semantics/openAccess