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Ciência e Agrotecnologia

versão impressa ISSN 1413-7054versão On-line ISSN 1981-1829

Resumo

FARIA JUNIOR, Leilson Antônio de et al. Dry matter production, content and accumulation of silicon in cultivars of rice (Oryza sativa L.) under levels of silicon. Ciênc. agrotec. [online]. 2009, vol.33, n.4, pp.1034-1040. ISSN 1413-7054.  https://doi.org/10.1590/S1413-70542009000400013.

The effect of silicon (Si) application on dry matter production of rice, as well as on the content and accumulation of silicon was evaluated under greenhouse conditions. The experimental design was a completely randomized design arranged in a 5 x 2 factorial structure with four replicates. The treatments consisted of a combination of five Si levels (0, 0.25, 0.50, 0.75, and 1.00 g dm-3) and two rice cultivars (Conai and Curinga). The Si application did not affect the growth and production components except the root dry matter. There was an increase in the root dry matter under Si application with a maximum production of 33.57 g pot-1 in the dose of 0.38 g dm-3 Si. The content and accumulation of Si varied between the cultivars, increasing linearly with the Si levels, except for Si accumulated in the shoot, where no significant differences were observed between the cultivars.

Palavras-chave : Yield components; calcium silicate; fertilizer; Oryza sativa.

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