ALMEIDA, Larissa Cavalcante.; LACERDA, Rogério Dantas de.; GUERRA, Hugo Orlando Carvalho.; SILVA, José Everardo Barbosa da.; ALMEIDA, Flávio Rangel dos Santos.; BARROS JUNIOR, Genival.
Résumé:
The economical importance of the castor bean is evidenced due to its wide industrial application. The
castor bean is a tropical plant commercially cultivated in more than 15 countries and Brazil as the third
biggest producer and with the high demand for oil production, it will need to expand its cultivated areas.
Due to the scarce information of soil and water management of the in situ castor bean, the objective of
the present research was to study the inflorescence emission of the BRS 188 – Paraguaçu and BRS
149 varities under different soil water regimes. The experiment was conducted from October 2008 to
March 2009 under field conditions using a randomized block 2x4 factorial design with two plant varities,
four levels of available water (100, 80, 60 and 40% ) and three replicates. Each experimental plot was
constituted by an useful area of 104.5 m2, where 60 plants, spaced in 2m x 1m, were cultivated, being
28 useful plants. At regular time intervals the emission of flowering was monitored and the results
analyzed statistically throughout analyses of variance, Tukey tests and regression analyses. The
blooming of both castor bean varities increased with the soil water content.
