RAPE OIL CONTENT AND PRODUCTION UNDER THE INFLUENCE OF SOWING DENSITY IN THE CONDITIONS OF S.C.D.A. LOVRIN IN 2011 PUBLISHEDCorina RĂDUCAN, Valeriu TABĂRĂ
From the rape culture, of special interest are both seed production and especially the oil content and hence oil production. Rape seed oil is low in saturated fat and contains both omega-6 and omega-3 fatty acids in a ratio of 2:1. If consumed, it also reduces Low-density lipoprotein and overall cholesterol levels, and as a significant source of the essential omega-3 fatty acid is associated with reduced all-cause and cardiovascular mortality. Rapeseed counts as hardly any other crop as the renewable resource par excellence. Rapeseed has been grown as an agricultural crop since the 16th century. As well as its use as a cooking oil, it is also used as an energy source, mainly in the production of biodiesel and as a raw material in the chemical industry. Erucic acid derived from rapeseed is processed to make surfactants, softeners, wetting agents and emulsifiers. The oil content of rapeseed is affected by the variety, location, stage of crop maturity and the weather conditions during the growing phase (temperature sum). Other important factors include harvest time, height of growth, lodging resistance and susceptibility to disease (phoma, sclerotinia). For research, several varieties and hybrids belonging to different companies were used: PAMELA variety (LG), EXOTIC and EXTEND hybrids (Monsanto) and PR46W14 hybrid (Pioneer). The used agrofond was N90P90K90, the other technology elements are specific to the area. The experimental results were calculated and interpreted by specific methods of experimental technique. Analysis of average production achieved by varieties and hybrids under study, points out that there are small differences between them. If the case of S.C.D.A. Lovrin experiment it was found that oil content varies from one cultivar to another. However, is strongly influenced by sowing density. In Extend and Exotic hybrids, oil content increases with density (maximum is at the of 200 gs/m²). At Pamela variety and PR46W14 hybrid, oil content in seeds is reduced with increasing sowing density from 50 to 200 gs/m². Oil production is closely linked to production and seed oil content.
rapeseed, sowing density, production, oil, hybrid