Use of copper hydroxide in the cultivation of lisianthus : seedlings (eustoma grandiforum L.) under floating system

Previous experiences demonstrated the efficiency of the floating system for growing lisianthus (Eustoma grandiflorum L.) seedlings. Using this system, root growth usually expands through the plug cell drainage hole into the solution originating some difficulties at transplant. Pruning roots could fa...

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Autores principales: Barbaro, Lorena Alejandra, Karlanián, Mónica Alejandra, Mata, Diego Alejandro
Formato: Artículo
Lenguaje:Inglés
Publicado: Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias 2017
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Acceso en línea:http://bdigital.uncu.edu.ar/9253
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author Barbaro, Lorena Alejandra
Karlanián, Mónica Alejandra
Mata, Diego Alejandro
author_facet Barbaro, Lorena Alejandra
Karlanián, Mónica Alejandra
Mata, Diego Alejandro
author_sort Barbaro, Lorena Alejandra
collection Repositorio
description Previous experiences demonstrated the efficiency of the floating system for growing lisianthus (Eustoma grandiflorum L.) seedlings. Using this system, root growth usually expands through the plug cell drainage hole into the solution originating some difficulties at transplant. Pruning roots could facilitate transplant as seedlings could be taken out of the tray more easily. However, root damages at the cutting point are a possible access for pathogens. The use of Cu(OH)2 in the nutrient solution as a chemical pruning method was evaluated. Lisianthus seeds were sown in floating trays and placed in nutrient solutions containing 0, 12, 23, 46, 92 and 138 g L-1 Cu(OH)2. After 30, 40, 47 and 54 days, fresh and dry weights of seedlings were recorded. When seedlings reached four expanded leaves they were transplanted to soil in a greenhouse. At flowering, shoots were harvested to evaluate flower stem quality. Total root and shoot fresh and dry weights were higher for seedlings cultivated with 0.023 or higher doses of Cu(OH)2. However, roots mass inside the tray cell were higher in all treatments compared to the control. The use of Cu(OH)2 during plug stage improved transplant size and no effect on further plant growth and development was observed.
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spelling uncu-92532017-10-03T19:58:27Z Use of copper hydroxide in the cultivation of lisianthus : seedlings (eustoma grandiforum L.) under floating system Uso de hidróxido de cobre en plantines de lisianthus : (eustoma grandiflorum L.) cultivados en sistema de raíces flotantes Barbaro, Lorena Alejandra Karlanián, Mónica Alejandra Mata, Diego Alejandro Hidróxido de cobre Eustoma grandiflorum Poda química Propagación de plantas Floating bed Eustoma grandiflorum L. Chemical pruning Bandejas flotantes Plantines Previous experiences demonstrated the efficiency of the floating system for growing lisianthus (Eustoma grandiflorum L.) seedlings. Using this system, root growth usually expands through the plug cell drainage hole into the solution originating some difficulties at transplant. Pruning roots could facilitate transplant as seedlings could be taken out of the tray more easily. However, root damages at the cutting point are a possible access for pathogens. The use of Cu(OH)2 in the nutrient solution as a chemical pruning method was evaluated. Lisianthus seeds were sown in floating trays and placed in nutrient solutions containing 0, 12, 23, 46, 92 and 138 g L-1 Cu(OH)2. After 30, 40, 47 and 54 days, fresh and dry weights of seedlings were recorded. When seedlings reached four expanded leaves they were transplanted to soil in a greenhouse. At flowering, shoots were harvested to evaluate flower stem quality. Total root and shoot fresh and dry weights were higher for seedlings cultivated with 0.023 or higher doses of Cu(OH)2. However, roots mass inside the tray cell were higher in all treatments compared to the control. The use of Cu(OH)2 during plug stage improved transplant size and no effect on further plant growth and development was observed. En el sistema de almácigos flotantes el crecimiento de las raíces generalmente excede el volumen de la celda pudiendo ocasionar algunas dificultades en el trasplante. La poda mecánica de raíces podría permitir que los plantines sean extraídos de la bandeja con mayor facilidad. Sin embargo, daños en las raíces debido al corte podrían ser vías de ingreso de patógenos. Semillas de lisianthus (Eustoma grandiflorum L.) fueron sembradas en bandejas flotantes utilizando soluciones nutritivas con 0, 12, 23, 46, 92 y 138 mg L-1 de Cu(OH)2 para evaluar su uso como agente de poda química. Luego de 30, 40, 47 y 54 días, se registró el peso fresco y seco de los plantines. Posteriormente se trasplantaron a un cantero dentro de un invernáculo y en floración se cosecharon para determinar la calidad de la vara. El peso fresco y seco de los plantines fue mayor al control en los tratamientos con 23 mg L-1 o mayores concentraciones de Cu(OH)2. Sin embargo, la masa de raíces dentro de la celda fue mayor en todos los tratamientos respecto del control. El uso de Cu(OH)2 durante la producción de plantines mejoró el tamaño del plantín y no tuvo efecto en el crecimiento y desarrollo posterior del cultivo. Fil: Barbaro, Lorena Alejandra. Instituto Nacional de Tecnología Agropecuaria (Argentina) Fil: Karlanián, Mónica Alejandra. Instituto Nacional de Tecnología Agropecuaria (Argentina) Fil: Mata, Diego Alejandro. Instituto Nacional de Tecnología Agropecuaria (Argentina) Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias 78 Revista de la Facultad de Ciencias Agrarias Vol. 49, no. 1 Revista de la Facultad de Ciencias Agrarias, Vol. 49, no. 1 2017-03-01 eng Inglés http://bdigital.uncu.edu.ar/8856 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar/ article info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias http://bdigital.uncu.edu.ar/9253
spellingShingle Hidróxido de cobre
Eustoma grandiflorum
Poda química
Propagación de plantas
Floating bed
Eustoma grandiflorum L.
Chemical pruning
Bandejas flotantes
Plantines
Barbaro, Lorena Alejandra
Karlanián, Mónica Alejandra
Mata, Diego Alejandro
Use of copper hydroxide in the cultivation of lisianthus : seedlings (eustoma grandiforum L.) under floating system
title Use of copper hydroxide in the cultivation of lisianthus : seedlings (eustoma grandiforum L.) under floating system
title_full Use of copper hydroxide in the cultivation of lisianthus : seedlings (eustoma grandiforum L.) under floating system
title_fullStr Use of copper hydroxide in the cultivation of lisianthus : seedlings (eustoma grandiforum L.) under floating system
title_full_unstemmed Use of copper hydroxide in the cultivation of lisianthus : seedlings (eustoma grandiforum L.) under floating system
title_short Use of copper hydroxide in the cultivation of lisianthus : seedlings (eustoma grandiforum L.) under floating system
title_sort use of copper hydroxide in the cultivation of lisianthus : seedlings (eustoma grandiforum l.) under floating system
topic Hidróxido de cobre
Eustoma grandiflorum
Poda química
Propagación de plantas
Floating bed
Eustoma grandiflorum L.
Chemical pruning
Bandejas flotantes
Plantines
url http://bdigital.uncu.edu.ar/9253