Crescimento e qualidade de mudas de Pinhão Manso (Jatropha curcas L.) produzidas em ambiente protegido / Growth and quality of Physic Nut seedlings (Jatropha curcas L.) produced in greenhouse

AUTOR(ES)
DATA DE PUBLICAÇÃO

2010

RESUMO

With the settlement of the National Plan of Biofuel Production, the interest aroused in the commercial production of Physic Nut (Jatropha curcas L.), once that oleaginous plant presents favorable characteristics for Biofuel production. Information on that crop is still scarce, mainly in Brazil where research is incipient. The need of information on local conditions also emphasizes the importance of research on Physic Nut, once much is commented on the adaptability of that crop to different conditions, but a few experiments to evaluate it have been performed. Therefore, during the development of this experiment we aimed to evaluate growth and quality of Physic Nut seedlings produced in greenhouse until the moment to be transplanted to the field. To do so, several production ways were analyzed, involving different types and volumes of dibble-tube containers, different substrate and fertilization. Besides, it was measured the amount of water consumed by the seedlings for different containers and substrate during the experimental phase. Results show that seedlings that presented best quality and largest growth, obtaining appropriate conditions to transplantation in the sixth week after germination, were obtained from the combination of the following factors: commercial substrate Plantmax®, dibble-tube container with volume of 290 cm3 and fertilizer of slow liberation, Osmocote®. The combination of the substrate Plantmax® and the dibble-tube container of 290 cm3 provided a consumption of water of approximately 1.4 L counted since the beginning of seedlings emergence.

ASSUNTO(S)

substrate cultivation ambiente protegido (plantas) protected environmental(plants) plantas oleaginosas. mudas oleaginous plants physic nut pinhão manso seedlings cultivo em substrato

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