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| Zanão Júnior,Luiz Antônio; Carvalho-Zanão,Maristela Pereira; Fontes,Renildes Lúcio Ferreira; Grossi,José Antônio Saraiva. |
| Muitos trabalhos têm demonstrado os efeitos da aplicação do boro (B) em variadas culturas; entretanto, poucos registros demonstram seus efeitos na produção de rosas. Objetivou-se com este experimento avaliar os efeitos de doses de B na produção e qualidade de rosas (Rosa hybrida cv. Shiny Terrazza®) em vaso. Os tratamentos foram cinco doses de B (0, 1, 4, 8 e 16 mg kg-1), aplicadas no substrato, em delineamento de blocos casualizados, com cinco repetições. Foram avaliados: número de flores por planta; número de folhas por haste floral; produção de matéria seca de raízes, folhas e flores; altura da planta; número de dias para o florescimento; comprimento do botão floral; e diâmetro e longevidade floral. Além disso, foram determinados os teores foliares de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rosa hybrida; Micronutriente; Ácido bórico; Floricultura. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000200017 |
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| Araújo,Alderi E; Maffia,Luiz A; Mizubuti,Eduardo S. G; Alfenas,Acelino C; Capdeville,Guy de; Grossi,José A. S. |
| Botrytis blight caused by Botrytis cinerea is an important disease of rose (Rosa hybrida) grown in greenhouses in Brazil. As little is known regarding the disease epidemiology under greenhouse conditions, pathogen survival in crop debris and as sclerotia was evaluated. Polyethylene bags with petals, leaves, or stem sections artificially infected with B. cinerea were mixed with crop debris in rose beds, in a commercial plastic greenhouse. High percentage of plant parts with sporulation was detected until 60 days, then sporulation decreased on petals after 120 days, and sharply decreased on stems or leaves after 90 days. Sporulation on petals continued for 360 days, but was not observed on stems after 150 days or leaves after 240 days. Although the fungus... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rosa hybrida; Botrytis blight; Epidemiology; Management. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582005000500009 |
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| Capdeville,Guy de; Maffia,Luiz A.; Finger,Fernando L.; Batista,Ulisses G.. |
| Gray mold of roses (Rosa hibrida) caused by Botrytis cinerea requires many management strategies for its control. The effect of pulsing rose cv. Kiss with solutions of citric acid, salicylic acid, sucrose, calcium sulfate, and silver thiosulfate (STS) on disease severity and vase life of the flowers was evaluated. The solutions were applied to cut stems at different stages of harvest, the variation in the opening stage of harvest did not affect the results. Pulsing with STS reduced the values of area under the disease progress curve (AUDPC) and of severity of disease by 15% and 55%, respectively, and increased the vase life of the flowers by 20%. Calcium sulfate consistently reduced AUDPC by 66% and maximum severity by 88%, and increased vase life of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cut flowers; Rosa hybrida; Botrytis; Calcium; Silver thiosulfate; Postharvest. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582003000400006 |
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| Zanão Júnior,Luiz Antônio; Carvalho-Zanão,Maristela Pereira; Pereira,Natália; Grossi,José Antônio Saraiva; Santos,Reginaldo Ferreira. |
| ABSTRACT: The production and quality of roses are influenced by fertilization management. The aim of this experiment was to evaluate the effects of doses of iron (Fe) in the production of potted rose bushes ( Rosa hybrida ). Treatments were based on five doses of Fe (0, 1, 3, 5 and 15mg kg-1) applied on the substrate, in a randomized block design with four replications. Seedlings presented two pairs of leaves and were individually transplanted into plastic pots (0.8dm3) containing commercial substrate. Each experimental plot consisted of a vase with a plant with two flower stalks. The following parameters were evaluated: number of leaves and flowers per flower stalk; dry matter production of roots, leaves and flowers; plant height and diameter and floral... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rosa hybrida; Floriculture; Plant nutrition. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000300251 |
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