Possibilities for utilization of oilseed rape meal as protein feed

摘要

A small-plot trial has been carried out at the Experimental Field of the Institute of Field and Vegetable Crops at Rimsli (S)an(c)evi from August 1997 to June 2000. It included ten winter cultivars of oilseed rape, namely Sremica, Bana(c)anka, Octavia,Jana, Casino, Valesca, Duna, Orkan, Pronto and Artus. There were significant differences at levels of both 0.05 and 0.01 in all monitored characteristics. The greatest plant height was in Valesca (130 cm), while the smallest plant height was in Pronto (116 cm). Number of lateral branches varied from 5.4 plant-1 in both Valesca and Orkan to 7.1 plant-1 in Octavia. Duna had the greatest number of husks (157.8 plant-1), while Valesca had the smallest number of husks (112.3 plant-1). Thousand seed mass ranged between 3.42 g in Jana and 4.14 g in Octavia. Thanks to the highest seed yield (11.48 g plant-1) and the largest crude protein content (219 g kg-1), Sremica had the highest crude protein yield (1355 kg ha-1).The lowest seed yield was in Jana (8.38 g plant-1),while the smallest crude protein content was in Bana(c)anka (185 g kg-1). Orkan had the lowest crude protein yield (837 kg ha-1).Crude protein yield was in high positive correlation with nearly all other monitored characteristics, namely with seed yield (r=0.988), number of lateral branches (r=0.806), number of husks (r=0.805), plant height (r=0.719) and thousand seed mass (r=0.462), while it was in no correlation with crude protein content (r=0.085).