Adaptability and ecological plasticity of barley under forest-steppe conditions of the Krasnoyarsk Territory

Сурин, Н. А.; Герасимов, С. А.; Lyakhova, N. E.

doi:10.26898/0370-8799-2023-6-2

Cited by 3 publications

References 8 publications

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Change and influence of agroclimatic conditions on oat yield in Yakutia

Petrova

2024

Sib. vestn. s-h. nauki

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The results of the dynamics analysis of multi-year meteorological indicators and study of their inﬂuence on the yield of the released oat varieties in diﬀerent agroclimatic zones of Yakutia are presented. It is shown that in the period from 1960 to 2021 the mean annual air temperature in Central Yakutia (Pokrovsk meteorological station) increased annually by 0.045 °C, from 1999 to 2021 – by 0.088 °C, the number of dry years in June increased from 67 to 92% due to a 21% increase in years with medium (HTC = 0.41-0.60) and very strong (HTC < 0.21) drought. In July, drought was recorded in 50% of the years, in August – in 38%. In all agroclimatic zones in the period from 2014 to 2021 for June – August the average daily air temperature annually increased by 0.16...0.34 °С and their sum by 14...28 °С, with precipitation decreasing by 3-16 mm and HTC value by 0.04-0.12 units. Climate change from 2014 to 2021 was 3 to 8 times more intense than from 1999 to 2022. There was a strong variability of yields of the released oat varieties in each agroclimatic zone: Central – from 0.38 to 2.14 t/ha (V = 60–73%), Zarechnaya – from 0.31 to 3.55 t/ha (V = 41–49%), Srednelenskaya – from 1.51 to 4.66 t/ha (V = 30–36%). The greatest annual decrease in grain yield of oat varieties (by 0.25–0.26 t/ha) was observed in arid agroclimatic zones – Central (Yakutsk SCTS) and Zarechnaya (Megino-Kangalassky SCTS) – compared to the wetter Srednelenskaya zone (Olyokminsky SCTS – by 0.10 t/ha). More signiﬁcant inﬂuence on the yield in the Central and Zarechnaya zones was made by precipitation and HTC of the growing season (r = 0.77...0.84), in the Srednelenskaya zone – by temperature (r = – 0.79). Negative eﬀect of temperature on the yield in the Central zone was observed in June (r = – 0.83), Zarechnaya zone - in July (r = – 0.83), in the Srednelenskaya zone – in August (r = –0.86). Precipitation and HTC had the greatest inﬂuence on the yield in the Central zone in June and July (r = 0.56...0.59), Zarechnaya zone – July and August (r = 0.60...0.76). In the Srednelenskaya zone the relationship of the yield with precipitation and HTC in June and July was positive (r = 0.23...0.37), in August – negative (r = – 0.57...– 0.71). Signiﬁcant variability in grain yields of the released oat varieties indicates the variability of weather conditions and the need to cultivate oat varieties that provide a more stable yield in diﬀerent agroclimatic zones of Yakutia.

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Change and influence of agroclimatic conditions on oat yield in Yakutia

Petrova

2024

Sib. vestn. s-h. nauki

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Study results of the parameters of winter barley adaptability according to forecrops

Zasypkina,

Dontsova

2024

Zernovoe hozâjstvo Rossii

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The development and wide distribution of new adaptive varieties in production is a promising and environmentally friendly way for the development of agriculture. A new, more modern, highly productive variety can ensure increased productivity, resistance of crops to stress factors, and promotes better use of natural and anthropogenic resources. The leading direction in breeding in the nearest future should be not the development of varieties in general, adapted to growing conditions, but the identification of varieties adapted to the stress-limiting environmental factors of a particular region, adaptive to the challenges of nature. In addition to the characteristics of the variety and environmental conditions, the forecrop also influences its productivity. Selection in some conditions may not reveal the potential of the genotype in others, which makes it important to obtain information on different growing environments of varieties at the early stages of breeding. The purpose of the current study was to determine the adaptive properties of promising winter barley varieties and lines according to various forecrops. The study was carried out from 2021 to 2023 to estimate the adaptability parameters of 20 winter barley varieties and lines developed by the FSBSI Agricultural Research Center “Donskoy” for various forecrops (weedfree fallow, peas, sunflower, winter wheat). To determine the indicators of homeostaticity (Hom) and selection value (Sc), stress resistance (Ymin–Ymax) and genetic flexibility ((Ymax+Ymin)/2), the coefficient of responsiveness to favorable growing conditions (Kr) and the indicator of the stability level of the variety (VSLI), there have been applied the methods of V.V. Khangildin and N.A. Litvinenko (1981), A.A. Rosielle and J. Hamblina as presented by A.A. Goncharenko (2005), V.A. Zykin (2005), E.D. Nettevich (2001). According to all forecrops, there have been identified the varieties distinguished by high parameters of environmental adaptability and stability. Stress-resistant genotypes included the lines ‘Parallelum 2016’ and ‘Parallelum 2017’ (Ymin–Ymax = 1.2, 1.1, respectively), which were distinguished by a set of stability indicators and have been recommended for use in the breeding process as sources of high stress resistance, low yield variability, capable of minimizing negative impact of growing conditions. The variety ‘Step’ proved to be adaptable (regression coefficient bi = 1.5), genetically flexible ((Ymin–Ymax)/2 = 7.7), and highly responsive to growing conditions (Kr = 1.53). The dynamics of productivity corresponded to changes in growing conditions, and to maximize a productivity level, there has been recommended to cultivate it on intensive forecrops.

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The Effectiveness of the Biological and Chemical Plant-Protecting Agents

Surin,

Kozulina,

Lipshin

et al. 2024

Problems of Soil Fertility in Modern Agriculture

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Pre–sowing treatment with the chemical protectant Het - Trick, SC and a biological preparation based on fungi of the genus Trichoderma allowed to reduce the number of phytopathogens per grain, increase laboratory germination and biometric parameters of seedlings. The number of spores on the grain decreased with the use of the chemical protectant Hat – Trick, SC to 700 pcs, when treated with a biological preparation to 775 pcs. The use of the Hat – Trick, SC protectant increased laboratory germination by 13.4%, and the biopreparation by 12.3% compared with the control. Biometric indicators of barley seedlings and roots significantly exceeded the control variant.

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Adaptability and ecological plasticity of barley under forest-steppe conditions of the Krasnoyarsk Territory

Cited by 3 publications

References 8 publications

Change and influence of agroclimatic conditions on oat yield in Yakutia

Change and influence of agroclimatic conditions on oat yield in Yakutia

Study results of the parameters of winter barley adaptability according to forecrops

The Effectiveness of the Biological and Chemical Plant-Protecting Agents

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