name
Derova Tatyana Grigorievna
Scholastic degree
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Academic rank
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Honorary rank
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Organization, job position
• All-Russian Research Institute of crops
ведущий научный сотрудник
Research interests
иммунитет и защита растений зерновых культур
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Articles count: 3
Сформировать список работ, опубликованных в Научном журнале КубГАУ
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06.01.05 Selection and seed production of agricultural plants (agricultural sciences)
Description
The purpose of the work was to test the winter wheat varieties artificially infected with North-Caucasus brown rust to identify its harmfulness. There was carried out a two-stage testing on two sets (8 and 10) of varieties that differed in their resistance to the pathogen. As a result, there has been identified high brown rust harmfulness in susceptible varieties, which led to a yield decrease from 16.3 to 32.2%. Among the maximum infected varieties, there has been identified the most tolerant variety ‘Tarasovskaya 29’ which, when damaged to 100%, had a minimum yield decrease (less than 10.6%). The poorly susceptible to brown rust varieties reduced their yields from 11.2% to 20.7%. Among them, the variety ‘Spartak’ showed lower rates of a yield decline. Among the five varieties that showed an average brown rust affection, there have been noted various indicators of a yield decrease. The variety ‘Donskaya Yubileynaya’ showed a minimum decrease of a yield and its structural elements under the conditions of artificial infection with brown rust; and together with the variety ‘Tarasovskaya 29’ can be classed to the varieties tolerant to brown rust. When predicting brown rust epiphytoty the susceptible and medium-resistant wheat varieties require obligatory protection with fungicides
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CREATION OF INITIAL MATERIAL FOR BREEDING OF WINTER WHEAT VARIETIES TOLERANT TO SMUT
06.00.00 Agricultural sciences
Description
The key task of the agriculture in Russia is the further improvement of grain production. Thus, prevention of losses of winter wheat yields because of the diseases remains relevant. The significance of varieties tolerant to diseases, especially to smut (fungus) is of primary importance. Therefore, it’s essential to create initial material for breeding of the varieties tolerant to smut. According to the results of the trials with artificial infection with pathogens, among the samples of winter wheat there have been identified varieties belonging to different groups of tolerance to smut. They are a highly sensitive cultivar ‘к-69361’ (Korea), a sensitive variety ‘Izyuminka’ (Russia), moderately sensitive variety ‘Asket’ (Russia) and almost tolerant variety ‘1621/03’ (Russia). We studied the reaction of the hybrids F2 on infection with smut in different variants of hybridization to obtain stable progeny. The correlation between the number of infected plants in parent and hybrid (F2) populations have been considered. The productive tillering of the plants has been determined in all variants of the trials; it was the least one on the plants with 100% of infected leaves. The hybrids F3 and F 4 have been distributed according to the degree of their tolerance to smut. For further work we have selected the lines with practical resistance to smut (fungus)
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