Plant development, seed yield and oil content of winter oilseed rape (Brassica napus L.) as affected by time of sowing and genotype

Abstract

This paper presents characterization of some components of seed yield, yield and rapeseed oil in order to compare 10 winter genotypes with aim to chosen some of them with best characteristics for Skopje region in Macedonia. The experiment was conducted during 2010/2011 and 2011/2012 seasons. Eight winter oilseed rape hybrids Hybrirock, Triangle, Petrol, Speed, Artoga, Albatros, Rohan and AbaKus, and two varieties Banacanka and Majdan, were tested under three seeding dates 15 September, 25 September and 5 October. The results showed that all genotypes achieved in the first seeding date the significant heights plants, the most number of branches on plant and number of seeds in pod, the largest weight on 1000 seeds, the largest seed yield and oil content in seed. Only length of pods was unchanged under seeding date affect and without significant differences between, but in terms of genotypes differences, the variety Banacanka, reached the significant longest pods. Duration of vegetation was not affected from seeding date, but between genotypes showed significant differences. Artoga, Albatros, Rohan and AbaKus achieved significant the shortest duration of vegetation. The biggest value of oil content achieved two hybrids: Artoga and Speedwith 49.9% and 49.8%.