SciELO - Scientific Electronic Library Online

 
vol.34 número5Métodos de superação de dormência em sementes de croada (Mouriri elliptica Mart)Profundidade de semeadura e crescimento inicial de espécies forrageiras utilizadas para cobertura do solo índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Ciência e Agrotecnologia

versão impressa ISSN 1413-7054

Resumo

BARBOSA, Maurício Soares et al. Chrysanthemum productivity and longevity in a hydroponic system in response to calcium doses. Ciênc. agrotec. [online]. 2010, vol.34, n.5, pp.1205-1210. ISSN 1413-7054.  https://doi.org/10.1590/S1413-70542010000500018.

To verify the response of different varieties of chrysanthemum to doses of calcium an experiment was conducted in a green house using a three-phase hydroponic system on a gravel substrate. It was set up in a completely random blocks with split-plot design, using four calcium doses (1.0; 2.5; 4.0; 5.5 mmol L-1) in the plots disposed and three chrysanthemum varieties (Blush Hawai, Calabria and Dark Flamengo) in the subplots. Three repetitions were used with 96 plants by repetition. Complete nutrient solutions were used with the different calcium doses. The following factors were evaluated: fresh matter weight of leaf, stem, inflorescence and shoot; cycle; number of inflorescences, stem length and the longevity, expressed in the number of days from harvest to disposal of the inflorescences (withered and losing flower coloring). The earliest and most productive varieties were Calabria and Blush Hawai. There was linear increase in the longevity of the three varieties with the increase of the concentrations of calcium in the nutrient solution. The best development and growth of the varieties of chrysanthemum was obtained when used the nutrient solution with 4.0 mmol L-1 calcium.

Palavras-chave : Dendranthema grandiflora (Ramat.) Kitam.; production; hydroponics system; postharvest.

        · resumo em Português     · texto em Português     · Português ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons