Coloração do fruto, tratamentos pré-germinativos e sua relação com a germinação e a qualidade de mudas de Aegiphila sellowiana Cham

• Autor(a) principal: Nascimento, Paulo do
• Data de Publicação: 2013
• Tipo de documento: Tese
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/1232
• topic: Tamanqueira; Quebra de dormência; Substrato; Qualidade de mudas; Tamanqueira; Dormancy; substrate; Quality seedlings; CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA

Aegiphila sellowiana Cham. (Lamiaceae) is a pioneer species known as parrot or tamanqueira, with potential to recover local anthropogenic, but is little studied the technology of its seeds. Objectives of this study were: to determine the relationship between fruit color and seed germination A. sellowiana ; evaluate the efficiency of pre -germination treatments (chemical and mechanical scarification, dry heat and low temperature - 15 ° verify the C; presence of germination inhibitors in the pericarp and/or seed, to assess the effect of storage time at room temperature germination; determine the best substrate for seedling emergence and seedling production quality (Quality Index Dickson - QID) A. sellowiana developed in Crawl. In all experiments the design was completely randomized with four replications 50 seeds. Performed the analysis of variance and means were compared by Tukey test at 5 % probability. Seeds orange fruits are physiologically immature. The seeds were immersed in sodium hypochlorite at 2% for two minutes secured 80.5% germination under laboratory conditions (BOB) and the use of sodium hypochlorite at 2% for two minutes, followed by immersion in water at 50° C for five minutes, the treatment provided greater seedling emergence (76 3%) and better quality of seedlings in nursery. Germination inhibitors exist in the pericarp and seed of this species itself. Occurs seed deterioration with time of storage at room temperature, reducing the rate of germination. Tanned bovine manure is recommended for the production of seedlings of A. sellowiana.