A note about the tests of grades of sunflower zoned in the Crimea. The highest productivity in droughty and favorable years in the Crimea is provided by early and early ripe hybrids of sunflower.
Sunflower – strategic culture for the Crimea. Intensity of use of this culture in a crop rotation increases every year that leads to deterioration of a fytosanitory condition of soils, increase in damage of plants of the zarazikhy. Therefore for receiving big, stable crops of sunflower it is very important to sow the high-yielding hybrids steady and tolerant in relation to such unsafe diseases as fomopsis, gray and white decayed.
Creation of high-yielding, steady hybrids against diseases gives the chance to increase gross collecting maslosemyan.
Gossortsluzhba Ukraine through system of the establishments, and in the Autonomous Republic Crimea it is the State center of examination of grades of plants, carries out formation of a national vegetative high-quality resource. Their effective use demands the organization of scientifically reasonable monitoring of the grades involved in a commercial turn.
Such monitoring promoting elimination of deficiency of information on new grades, is carried out on the basis of special experiences – postregistration studying of grades.
In the current year grades of sunflower passed such test, results on some of them are entered in the table:
From the table it is visible as varies productivity level. The highest productivity in droughty and favorable years in the Crimea is provided by early and early ripe hybrids of sunflower to which should be preferred at selection of high-quality structure of this culture.
A.Zakalichnaya, the chief of the State center of examination of grades of plants with the state inspectorate for protection of the rights to grades of plants of AR Crimea.