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Agronomic characteristics and oil content of rapeseed as a function of sown date

The aim of this study was to evaluate the influence of different sowing dates on plant population, yield and oil content of rapeseed (Brassica napus L.) crop in 2012. A completely randomized block design in a split-plot 2 x 7 was used with seven sowing dates: 24/03/12, 07/04/12, 21/04/12, 05/05/12, 19 / 05/12, 02/06/12 and 16/06/12 and two hybrids: Hyola 61 and Hyola 433. The yield and oil content were similar among treatments, on average 1058 kg ha-1 and 38.2%, respectively. The advancement in sowing times reduced productivity and oil content. To obtain higher grain yields, with higher oil content in the grain, it is recommended to sow hybrids Hyola 61 and Hyola 433 until 20/04, especially if there is expectation of low rainfall during the winter period.

Brassica napus L. var oleifera; yield; population


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