The new winter rye variety ‘Zilant’ with broad adaptability

The purpose of the current work was to develop a highly productive winter rye variety for bakery with improved resistance to a complex of unfavorable factors and broad adaptability. The breeding work on the rye variety ‘Zilant’ was conducted in the Tatarsky Research Institute of Agriculture FRC of the Kazan Scientific Center of RAS in 2005–2015. The study of the variety in the Competitive Variety Testing was carried out in 2016–2019, in comparison with the standard varieties ‘Radon’ and ‘Tantana’. There has been presented a detailed characteristics of the variety ‘Zilant’ in terms of economically valuable indicators and adaptive potential according to grain productivity. The winter rye variety ‘Zilant’ formed the largest productivity on average for 4 years (50.2 hwt/ha) and produced high grain quality (229 s of a falling number and 647 u.a. of amylogram height, versus 224 s of a falling number and 625 u.a. of amylogram height of the standard variety ‘Radon’). The variety ‘Zilant’ has a dominant-monogenic type of short stems, strong short straw (on 14–13 cm lower than that of the standards). The variety possesses the same degree of field resistance to rust infections and ergot, resistance to powdery mildew as the standard variety ‘Radon’. There was determined that the rye variety ‘Zilant’, on average over the years of trials, was characterized by a significantly higher productivity (50.2 hwt/ ha, НСР₀₅ = 1.5 c/ha) compared to the control, had a good combination of adaptability (b_i = 1.149) and stability (Ϭ_d² = 3.17). These advantages of the variety are provided by resistance to unfavorable environmental conditions, the formation of a denser cenosis, field resistance to diseases, and a short non-lodging stem. The rye variety ‘Zilant’ produced grain with high baking qualities, corresponding to the 1st class of standards for grain and flour. The variety was responsive to improving growing conditions, showed less response to stress factors and was adapted to a wide range of environmental conditions.

1. Goncharenko A. A. Ekologicheskaya ustojchivost' sortov zernovyh kul'tur i zadachi selekcii [Environmental sustainability of grain varieties and objectives of breeding] // Zernovoe hozyajstvo Rossii. 2016. № 3(43). S. 31–37.

2. Zykin V. A., Belan I. A., Yusov V. S., Kiraev R. S., Chanyshev I. O. Ekologicheskaya plastichnost' sel'skohozyajstvennyh rastenij (metodika i ocenka) [Ecological adaptability of agricultural plants (methodology and estimation)]. Ufa, 2011. 97 s.

3. Krivobochek V. G. Ocenka adaptivnyh svojstv novyh sortov yarovoj pshenicy po urozhajnosti v lesostepnyh usloviyah Srednego Povolzh'ya [Estimation of adaptive properties of the new spring wheat varieties according to the yields in forest-steppe conditions of the Middle Volga region] // Niva Povolzh'ya. 2015. № 2(35). S. 43–47.

4. Mal'chikov P. N., Rozova M. A., Morgunov A. I., Myasnikova M. G., Zelen-skij Yu. I. Velichina i stabil'nost' urozhajnosti sovremennogo selekcionnogo materiala yarovoj tverdoj pshenicy (Triticum durum Desf.) iz Rossii i Kazahstana [The value and stability of productivity of modern breeding material of spring durum wheat (Triticum durum Desf.) from Russia and Kazakhstan] // Vavilovskij zhurnal genetiki i selekcii. 2018. T. 22. №. 8. S. 939–950. DOI 10.18699/VJ18.436.

5. Ponomareva M. L., Ponomarev S. N., Mannapova G. S. Sozdanie sortov ozimoj rzhi dlya Srednego Povolzh'ya (na primere sorta Tantana) [Development of winter rye varieties for the Middle Volga region (on example of the variety ‘Tantana’)] // Zernovoe hozyajstvo Rossii. 2015. № 3(37). S.18–21.

6. Pryanishnikov A. I., Karakotov S. D. K razvitiyu teoreticheskih osnov i programmnyh blokov adaptivnoj selekcii zernovyh kul'tur [To the development of theoretical foundations and program blocks for adaptive breeding of grain crops] // Sovremennye problemy adaptacii (Zhuchenkovskie chteniya IV). 2018. S. 85–94.

7. Eberhart S. A., Russell W. A. Stability parameters for comparing varieties 1 // Crop science. 1966. Т. 6. №. 1. S. 36–40.