E3S Web Conf.
Volume 254, 2021International Scientific and Practical Conference “Fundamental and Applied Research in Biology and Agriculture: Current Issues, Achievements and Innovations” (FARBA 2021)
|Number of page(s)||4|
|Section||Genetic Resources Are the Basis of Selection and Seed Production in the Development of Organic Agriculture|
|Published online||05 May 2021|
Potential of apple varieties of the Ural-Siberian and Far Eastern group for use in breeding for winter hardiness
1 Federal State Scientific Institution «I. V. Michurin Federal Scientific Center», 393770 Michurinsk, Russian Federation
2 Federal State Budgetary Educational Institution of Higher Education “Michurinsk State Agrarian University”, 393760 Michurinsk, Russian Federation
* Corresponding author: email@example.com
The gene pool of apple varieties of the Ural-Siberian and Far Eastern group has a valuable genetic potential especially in breeding for winter hardiness. Today, apple breeding research focused on winter hardiness using that varieties is limited. Using in hybridization gene pools created in harsh conditions of Siberia and the Far East will allow promoting the spread of apple culture to the north, which is mainly limited by frost resistance. Assessment of frost damage level of tissues and kidneys of apple shoots by -40°C temperature decrease was the principal goal of the work. According the national food and nutrition security policy, share of fruit production in the northern regions must be increased. In that case, ongoing scientific research has the defining value for these purposes. Different apple tree genotypes responses to low temperatures is highly individual and depends both of the degree or strength of frost and of the sensitivity of the plant itself. This complex interrelationship determinates the winter hardiness level under negative environmental conditions. 30 varieties of apple tree of the Ural-Siberian and Far Eastern groups were selected for study of frost resistance. Genotypes have a sufficient “margin of safety” for resistance to cause by frost damages.
© The Authors, published by EDP Sciences, 2021
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