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Planta Daninha

Print version ISSN 0100-8358On-line version ISSN 1806-9681


PIVETTA, K.F.L.; ROSA, C.S.; PITELLI, R.A.  and  COAN, R.M.. Selectivity of Salvia splendens to oxyfluorfen applied to rice straw. Planta daninha [online]. 2008, vol.26, n.3, pp.645-655. ISSN 0100-8358.

Weed control is one of the main constrains to flower garden maintenance. This work aimed to study the possibility of translocating oxyfluorfen to rice straw and of selectivity of Salvia splendens, one of the main ornamental species produced and commercialized in Brazil, to the herbicide. A randomized block design was used in the factorial scheme 4 x 3, with four repetitions. The treatments consisted of four amounts of rice straw (0, 4, 6 and 8 t ha-1) combined with three doses of oxyfluorfen (0, 1 and 2 L ha-1). The results showed that the treatments that led to translocation of the herbicide to rice straw showed great weed control, without any high phytotoxicty damage to the salvia plants. The treatment receiving g 4 L ha-1 of herbicide in 2 t ha-1 of rice straw provided satisfactory results, without causing any phytotoxicity damage to the salvia plants and thus can be recommended for weed control.

Keywords : mulching; phytotoxicity effects; ornamental plant.

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