Abstract

NEVES, Orlando Sílvio Caires; SA, José Roberto de  and  CARVALHO, Janice Guedes de. Growth and visual symptoms of micronutrients deficiency in umbuzeiro. Rev. Bras. Frutic. [online]. 2004, vol.26, n.2, pp. 306-309. ISSN 0100-2945.  http://dx.doi.org/10.1590/S0100-29452004000200030.

The effect of micronutrient omission on growth and nutritional deficiency symptoms in umbuzeiro seedlings cultivated in nutrient solution was evaluated in this work. The experimental design was completely randomized with four replication and seven treatments, being them: complete (all the nutrients), with individual omission of B, Cu, Fe, Mn and Zn and simultaneous omission of Zn and Cu. The absence of B, Cu, Fe, Mn and Zn in the nutrient solution implicated on the reduction plants development inducing morphologic alterations with characteristic symptoms of nutritional deficiency of each nutrient. The umbuzeiro was shown more demanding in B, Fe and Zn in the initial phase of growth than Mn and Cu. The reduction in the total dry matter of the umbuzeiro seedlings was influenced in the following order: Fe > B > Zn > Zn+Cu > Cu > Mn.

Keywords : Spondias tuberosa; mineral nutrition; nutrient solution.