YIELD AND YIELD COMPONENTS OF INVESTIGATED RAPESEED HYBRIDS AND CULTIVARS

To evaluate new winter rapeseed hybrids and cultivars, investigations were conducted at the experimental field of the Faculty of Agriculture, University of Zagreb, in the period 2009/10 - 2011/12. The trial involved 11 hybrids and 5 cultivars rapeseed of 5 seed producers selling seed in Croatia. The studied rapeseed hybrids and cultivars differed significantly in seed and oil yields, oil content and yield components (seed number per silique and 1000 seed weight). However, a number of hybrids rendered identical results, since the differences in the investigated properties were within statistically allowable deviation. Hybrids Traviata and CWH 119 can be singled out based on the achieved seed and oil yields, and the cultivar Ricco and hybrids CWH 119 and PR46W15 for their high oil content in seed. Hybrids with a larger silique number per plant also achieved a higher seed yield.