Influência de substratos na formação de porta-enxerto de gravioleira (Annona muricata L.)

Abstract

The use of adequate substratum is an important factor to proportion appropriate conditions for germination and good development of seedlings. With the objective of evaluating different substrata for soursop rootstock (Annona muricata L.) production, an experiment was done in the Department of Phytotecny of the Federal University of Viçosa, in Viçosa, Minas Gerais, Brazil. The substrate were conditioned in polyethylene bags, in which de seeds were sown. A randomized block experimental design entirely with four treatments, five repetitions and five plants for portion were applied. The evaluated substrate were Plantmax; Substratum-A (bovine manure, soil, sand and vermiculite in the proportion of 2:1:1:1 v/v); Substratum-B (Plantmax, soil, sand and vermiculite - 1:1:1:1 v/v) and Substratum-C (Plantmax, bovine manure, soil and sand - 1:1:1:1 v/v). The best results were obtained with the substrate A and C, which can be considered appropriate for soursop rootstock production.