Перспективність пошуку джерел стійкості пшениці озимої до чорного зародка / Perspective for finding sources of winter wheat resistance to black point
Journal Title: Вісник Львівського національного аграрного університету. Агрономія - Year 2018, Vol 22, Issue
Abstract
The long-term study of the endophytic mycoflora of the seeds in the Northern East of Ukraine showed a difference in the infection of the black point of different varieties of winter wheat, therefore, studied the peculiarities of the development of this disease. The dependence of the results of macroscopic analysis of seeds on wheat vegetation conditions was noted. In 2016, a higher percentage of non-quality grain of three varieties was found (Voloshkova, Poliska 90, Sonechko) than in 2017. The number of seeds with a black point has decreased significantly over the years. Dependence of the appearance of a black point on the conditions of the year indicates the need for a long-term study of the resistance to this factor. Investigated the dependence of the appearance of the black point on the wheat cultivating area. If the place of cultivation had a significant influence on the detection of all the signs at once, then such dependence was not noted for the spread of a black point. The highest percentage of unplanned seeds was found in the forest-steppe zone, and in Polissya – the percentage of seeds with black point. There was no relationship between the endophytic mycoflora of the seeds and the distribution of the black point: the amount of fungal isolation significantly exceeded the percentage of the appearance of a black point. The biological analysis of the seeds with black point (Bogdana) showed 100% isolation of the genus Alternaria sp. and the insignificant presence of the genus Penicillium sp. and Trichothecium roseum. Studies on finding resistance forms of wheat for a black point have begun. In 2017, resistant forms to the black point that exceeded the standard by weight of 1000 seeds were determined: Vyshivanka, Bereginya myronivska and Lun Jou 7 (D-204)
Authors and Affiliations
T. Rozhkova, A. Burdulanyuk, V. Vlasenko, L. Nemeritska
Keywords
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