Data/hora: 03/07/2024 14:14:00

Biblioteca(s): 	Epagri-Sede.	
Data corrente: 	24/05/2018	
Data da última atualização: 	24/05/2018	
Autoria: 	LONE, A. B.; COLOMBO, R. C.; SILVA, C. M.; TAKAHASHI, L. S. A.; INAGATI, A. T.; ROBERTO, S. R.	
Título: 	Shading levels in the development of dragon fruit (pitaya) nurseries.	
Ano de publicação: 	2018	
Fonte/Imprenta: 	Agronomy Science and Biotechnology, Londrina, v. 4, n. 1, p. 8-13, 2018.	
Idioma: 	Inglês	
Conteúdo: 	The objective of this work was to evaluate the rooting and sprouting of pitaya (Hylocereus undatus) cuttings under different shading levels. Shades obtained by screen were: 37.8%, 49.6%, 86.3%, and under the sun. The following characteristics were analyzed: cuttings survival (%), shooting (%), number of shoots, shoots average length (cm), shoots dry matter (g), rooted cuttings (%), root average length (cm), root volume (mL), root dry matter (g), and chlorophyll concentration a and b (mg g-1). Survival percentage means were between 90 and 100%. Responses for shooting and shoots dry matter were quadratic, with maximum point at 23.48% and 42.7 % of shading, respectively. In regards to cuttings rooting, means were between 80 and 95%. Root volume and root dry matter showed linear reduction according to shading level. Chlorophyll contents a and b showed linear increase in function o shading level. Partial shading ( between 23 and 42%) increased the percentage of cuttings with shoots, the accumulation of dry matter on them, and affected volume and dry matter accumulation on roots in pitaya nurseries propagated by cuttings.	
Palavras-Chave: 	Cactaceae; chlorophyll; cutting; Hylocereus undatus.	
Categoria do assunto: 	F Plantas e Produtos de Origem Vegetal	
URL: 	http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_40692.pdf	
Registro original: 	Epagri-Sede (Epagri-Sede)	
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