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Efeito de substratos na aclimatização de plantas micropropagadas do porta-enxerto de ameixeira Marianna 2624
Authors
Marcelo Couto
Rodrigo Cezar Franzon
Alberto Centellas Quezada
Américo Wagner Jr.
Publication date
1 June 2004
Publisher
Revista Ceres
Abstract
Diferentes substratos foram estudados durante a aclimatização de plantas micropropagadas do porta-enxerto de ameixeira Marianna 2624 (Prunus sp.). O experimento foi conduzido durante 78 dias, em casa de vegetação, na Embrapa Clima Temperado, Pelotas-RS. Os tratamentos consistiram de quatro substratos, nas seguintes misturas (v/v): casca de arroz carbonizada: solos: esterco (2:1:1); casca de arroz carbonizada:Plantmax© (1:3); casca de arroz carbonizada:húmus (l:3) e casca de arroz arbonizada:húmus:solo (2:2:l). Em geral, as mudas crescidas nos substratos casca de arroz carbonizada: húmus e casca de arroz carbonizadas: Plantmax© apresentaram as maiores porcentagens de sobrevivência, número de folhas, comprimento da parte aérea e da raiz e matérias fresca e seca da parte aérea e da raiz.The effect of different substrates on the acclimatization of in vitro propagated Marianna 2624 plum rootstock was studied. The work was conducted during 78 days in a greenhouse at Embrapa Temperate Climate, in Pelotas (RS-Brazil). The treatments consisted of four mixtures of substrates (v/v): caxbonized rice bulls: soil: manure (2:1:l); carbonized rice hulls: Plantmax© (l:3); carbonized zice hulls: humus (1:3) and caxbonized rice hulls: humus: soil (2:2:l). ln general, the glantlets grew in the substrate carbonized rice bulls: humus and caxbonized rice bulls: Plantmax© had the best survival percentage, the plantlet height and root length, number of leaves and fresh and dry matter of aerial part and root
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