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Revista de Ciências Agrárias

Print version ISSN 0871-018X


MAUAD, Munir; FELTRAN, José Carlos; CRUSCIOL, Carlos Alexandre Costa  and  ALVAREZ, Angêla Cristina Camarin. Dry matter and root morphology of upland rice plants as a function of zinc fertilization. Rev. de Ciências Agrárias [online]. 2012, vol.35, n.1, pp.251-260. ISSN 0871-018X.

The study aimed was to evaluate the upland rice cultivars behavior submitted to different levels of zinc, aiming to identify development alterations of the root system and the shoot. The experiment was carried in 8 dm-3 pots in greenhouse, up 64 days after the emergency of the plants. The experiment was design 4 x 3 completely randomized, consisted by four zinc levels (0, 4, 8 and 16 mg dm-3) and three upland rice cultivars (Caiapó, Maravilha and Primavera) with four replications. The root diameter increased by the Zn high level fertilization. Length, surface and root volume did not influenced by the zinc levels. The cultivars of Caiapó traditional group and Primavera intermediate showed increased root lenght then the Maravilha modern group. Cultivars with greater root lenght (Caiapóe Primavera) demonstrated higher lever of Zn levels in the shoot.

Keywords : Architecture root; micronutrient; Oryza sativa.

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