Comportamento de cultivares de mamona na mesorregião do sertão paraibano.

Abstract

Currently the culture of castor has emerged as a of the main raw material for the production of oil, especially in the Northeast, however many factors has hampered the establishment of this tilth in new areas among which is the lack of cultivars adapted to each region of cultivation. This study was developed with the objective of identify castor’s cultivars with adaptation to the Paraíba Sertão. The study was conducted on Sítio Monte Alegre countryside of municipality of Pombal - PB, the experimental design was the of random blocks with seven treatments composed by BRS Northeastern; Paraguaçu BRS; BRS Energy; Guarany AL-2002, IAC 2028, IAC Guarany and IAC 80, with four replications were evaluated characteristics of growth, production, yield and oil content in the seeds. From the results was registrated a higher grain production per plant in Northeastern BRS and higher grain yield among cultivars long cycle, in relation to early maturity cultivars the IAC 2028 got higher productivity, the primary raceme may represent more than 40% productivity in cultivars of early maturity, the higher oil content in seeds was observed in BRS Energy also gave higher oil yield among the seven cultivars. Nevertheless, we believe that further studies should be performed at different times and forms of management to identify with greater precision farming which best fits the region.