Determination of the Agronomic Performances of Some Oilseed Sunflower (Helianthus annuus L.) Hybrids Grown under Erzurum Ecological Conditions


Abstract: In eastern Anatolia, the sunflower (Helianthus annuus L.) has been grown as a confectionary crop for a long time, but oilseed sunflower types have more recently been grown commercially. No information on the performance of oilseed sunflower hybrids for this region is, however, available. Therefore, during the 1998 and 2001 growing seasons, a field experiment was conducted to evaluate the agronomic performances and genotypic differences of some sunflower hybrids under Erzurum conditions. In this study 20 sunflower genotypes were used. The 2-year results showed that the genotypes differed significantly in all the characteristics investigated, except for kernel percentage. Similarly, the year had a significant influence on the agronomic parameters of the genotypes, with the exception of 1000-seed weight. The present study suggests that higher seed yields may be achieved through the use of hybrid genotypes under the region's conditions. Based on these 2 years' data, it can be concluded that P-64A52, Trakya-80, AS-508 and HI with their higher seed and oil yield could be successfully grown under this region's conditions.

Keywords: Sunflower, hybrid, genotype, seed yield, adaptation, genotypic variation

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