CONTRIBUIÇÃO DO SILICATO DE POTÁSSIO NA REDUÇÃO DA INTERFERÊNCIA DE Cyperus rotundus EM Cucumis sativus

• DOI: 10.22533/at.ed.4251904047

• Palavras-chave: Pepino, K2 SiO3 , ervadaninha, Estufa, Campo

• Keywords: Cucumber, K2 SiO3 , weed, greenhouse, filed

• Abstract:

  The interference of Cyperus

  rotundus L (Cyperaceae) in pickling cucumber

  is an obstacle on its production. The cucumber

  plant is responsive to silicates conferring

  resistance against pathogens and herbivores.

  However, the potential of Potassium Silicate

  (K2

  SiO3

  ) to compensate for interference caused

  by weeds is unknown. The objective was to evaluate the root development and production of cucumber sprayed with K2

  SiO3 and

  under interference of C. rotundus. The experiment was conducted in a greenhouse in

  summer and on winter in the field. For both conditions, we used a randomized block

  with four replicates and five treatments: T1 (cucumber without K2

  SiO3

  ), T2 (cucumber

  with K2

  SiO3

  ), T3 (cucumber interference with cucumber, without K2

  SiO3

  in both),

  T4 (cucumber interference with cucumber, with K2

  SiO3 in cucumber) and T5 (tacit

  interference in cucumber, with K2

  SiO3 in silica). Cucumber roots were longer when

  the plants were sprayed with K2

  SiO3 than those without spraying. Cucumber plants,

  sprayed with K2

  SiO3

  , with and without C. rotundus interference, had the same number

  of fruits per plant, average fruit mass, harvests plant-1 and yield. Cyperus rotundus,

  sprayed with K2

  SiO3

  , had longer roots and larger leaves, in greenhouse cultivation in

  the summer

• Número de páginas: 15