The blueberry presents slow development and low index of survival of the seedlings. Among the factors involved in the production of seedlings, the quality of the substrate is a factor of great importance. The work had as objective evaluates the development of blueberry seedlings in different substrate compositions, during the months of December 2005 to March 2006. It was used seedlings of the cultivar Georgiagem of the highbush group, originated from of multiplication in vitro. Seven different substrates were used for the formation of the seedlings: T1 - Plantmax® (100%); T2 - Plantmax® + Perlita (1: 1); T3 - Soil + industrial compost + Perlita (1: 1 :1); T4 - Soil + rice husks + Soil (1 : 1: 2); T5 - Soil + industrial compost + Vermiculite (1: 1: 1); T6 - Acacia bark + soil (1: 2); T7 - pine needle mulch + soil (1: 2). They were evaluated: height of the plants, accumulation of dried matter of the aerial part and root and chemical analysis of the substrate. The composition of the substrate influenced in the development of the blueberry seedlings. The best results were observed in substrates with acid pH. The substrate pine needle mulch + soil, Plantmax®, Plantmax® + perlita and rice bark + soil presented better results.
highbush; development; Georgiagem; in vitro; Vaccinium Myrtillus L
