Productivity of high oleic sunflower hybrids, grown in South Bulgaria
Zlatin Stoev
Agricultural university- Plovdiv
Резюме
Over the past fifteen years have seen a significant increase in the areas of sunflower in Bulgaria. The increase in the area of sunflower during this period is due to the changed structure of agriculture in Bulgaria and the mass influx of highly productive sunflower hybrids on the Bulgarian market. This requires cultivation in areas of different soil types which are not very suitable for this purpose. Although sunflower has high tolerance for growing on different soil types, seed and oil yield is a criterion for their genetic adaptation. lthough sunflower has high tolerance for growing on different soil types, seed and oil yield is a criterion for their genetic adaptation. Modern sunflower hybrids have high tolerance. The yield of these is used as the main criteria for genetic adaptation. This approach in determining the capabilities of varieties and hybrids is due to the fact that, as a complex feature, the yield of more than any other sign represents the integrated amount of the effects of all factors during the life cycle of the plants. Therefore, in modern programs, the problem of ecological plasticity and adaptability of varieties and hybrids is solved by their repeated productivity testing under different environmental conditions.
The purpose of the present study is to establish the yield of seeds and oil of the San Lukа standard and several high oleic hybrids - Bisser, Oliva, Armada, Ethic and Ballistic, grown on alluvial-meadow soil.
