Abstract
Background. The breeding value of accessions from the VIR collection can be estimated only under specific climate and soil conditions. Studying such accessions helps to include them in the breeding process.Materials and methods. Forty-two accessions of naked oats of various origin were studied at the FARC of the North-East. Biochemical analysis of grain and statistical data processing using descriptive statistics and correlation analysis techniques were carried out.Results. The accessions were divided into groups according to their ripening schedule: early (up to 80 days), medium (81–84 days), and mid-late (85–89 days). High yielding genotypes were identified in each ripeness group. The plant height depended on the hydrothermal conditions of the growing season (r = 0.25). The studied accessions were all classified as undersized (64.0–99.1 cm), including the reference cv. ‘Vyatsky’ (88.1 cm). A significant contribution of some panicle productivity components to an increase in yield was observed. The protein and fat content in grain determines its nutritional and energy value. The results showed a positive relationship between yield and protein content (r = 0.44). A significant negative correlation between fat content and protein content (r = –0.61) was registered. The study of naked oat accessions showed different fat content in grain across the ripeness groups.Conclusion. According to the results of the study, some accessions were identified as sources of traits useful for breeding. The following accessions were selected as the best according to a set of characters (yield, plant height, number of grains per panicle, panicle weight, protein and fat content in grain): early ‘Litovsij nagij’ (k-15234, Lithuania), ‘Gkzalon’ (k-15299, Mongolia) and ‘MF9224-164’ (k-15090, USA); medium k-15248 (local, Poland) and MF9521-281 (k-15095, USA); and mid-late ‘Bai Yan 2’ (k-15525, China), ‘Progress’ (k-15339, Russia), ‘Visit’ (k-15501, Ukraine) and ‘Mina’ (k-15192, Bulgaria).
Highlights
The breeding value of accessions from the VIR collection can be estimated only under specific climate and soil conditions
Forty-two accessions of naked oats of various origin were studied at the FARC of the NorthEast
High yielding genotypes were identified in each ripeness group
Summary
Коллекционные образцы разделены на группы спелости: раннеспелые (до 80 дней), среднеспелые (81–84 дня), среднепоздние (85–89 дней). Выделены урожайные генотипы в каждой группе спелости. Содержание белка и жира в зерне определяет его питательную и энергетическую ценность. Полученные данные свидетельствуют о положительной зависимости урожайности и содержания белка (r = 0,44). Выявлена достоверная отрицательная корреляция между содержанием жира и содержанием белка (r = –0,61). Изучение коллекционных образцов показало различное содержание жира в зерне по группам спелости. По результатам исследований выделены образцы – источники ценных признаков для использования в селекции. По комплексу признаков (урожайность, высота растений, количество зерен в метелке, масса метелки, содержание белка и жира в зерне) выделены образцы: раннеспелые ‘Litovsij Nagij’ (к-15234, Литва), ‘Gkzalon’ (к-15299, Монголия), ‘MF9224-164’ (к15090, США); среднеспелые к-15248 (местный, Польша), MF9521-281 (к-15095, США); среднепоздние ‘Bai Yan 2’ (к-15525, Китай), ‘Прогресс’ (к-15339, Россия), ‘Визит’ (к15501, Украина), ‘Mina’ (к-15192, Болгария)
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