Yield Stability in a Wide Range of Environments as a Primary Parameter in Winter Wheat Breeding

Грабовец, А. И.; Фоменко, М А

doi:10.3103/s1068367420060075

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…The role of variety as a biological system that ensures the stabilization of yield at a high level is especially important in a variety of soil-climatic and economic conditions of agricultural production [10]. The main comprehensive indicator of the adaptability of selected genotypes is the level of their yield in different environmental conditions [11]. Zykin V.A.…”

Section: Resultsmentioning

confidence: 99%

Agroecological potential of winter soft wheat varieties for Middle Volga region conditions

Gryazeva

Kasynkina

Кудин

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Ecological plasticity and stability in productivity of seven varieties of winter soft wheat were studied in 2020-2021. As a result of the study it was found that on average for 2 years the most productive varieties were Grom, Surava and Biryuza with yields of 60.5, 48.5 and 46.5 dt/ha, respectively. Moisture and protein content in all the varieties studied were within the optimum limits. The environment index showed that growing conditions were worse in 2021 (Ij = -12.8) than in 2020 (Ij = 12.9). The varieties Grom, Biryuza and Krastal were the most plastic (bi - 1.3; 1.53; 1.41, respectively). These varieties should be cultivated according to intensive technology. The yields of these varieties on improved growing conditions are high. The value of the linear regression coefficient for the variety Povolzhskaya Niva is practically zero (bi = 0.01). This variety does not respond to changes in growing conditions. In varieties Skipetr, Doneko and Surava the linear regression coefficient approached 1. These varieties respond to improved growing conditions. The calculation of the ecological plasticity index showed that the varieties Grom, Surava and Biryuza are also ecologically plastic. The Povolzhskaya Niva and Doneco varieties were found to be the most stable. Their standard deviation (σd2) was 0.004. In the other varieties it was between 0.01 and 0.8. The most unstable variety was Krastal. The standard deviation (σd2) was 1.1.

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Section: Resultsmentioning

confidence: 99%

Agroecological potential of winter soft wheat varieties for Middle Volga region conditions

Gryazeva

Kasynkina

Кудин

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Adaptation of spring soft wheat ( Triticum aestivum L.) to steppe and dry steppe growing conditions

Shestakova,

Shelia,

Absattarova

et al. 2024

Cogent Food & Agriculture

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Climate change and selection features of winter soft wheat on productivity and adaptability to it

Grabovets,

Fomenko

2023

Vestnik of the Russian agricultural science

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The climate is changing towards aridity. “Drought resistance” has become the most important factor. By using genetic coadaptation phenomena, it has been possible to increase the potential grain yield under these conditions up to 10,7 t/ha. This is due to significant growth of the crop yield index (from 36 to 40%). It continued increase in the case of droughts is limited by the biological yield. Using the phenomenon of transgression this problem can be solved with simultaneous obtaining the genotypes with increased top weight by reducing the coefficient of water consumption in the synthesis of metabolites. Along with this value, the photosynthesis intensity is of vital importance. It is determined by such factor as the yield to leaf area ratio. When assessing the heat and drought resistance of genotype, the following marker is used: weight of grain per plant or area. The freezing resistance issue is solved by using the transgressive selection with the sources of this specification. It usually dominates in the case of gene interaction. Despite the warming phenomena, the freezing resistance is also considered. The temperature at the tillering zone depth (-18℃) is used as the core indicator. Two methods are implemented namely: transgressions when attracting the high-yielding medium winter-hardy forms in hybridization and generation of genotypes equal to the high winter-hardy parent plant, with the use of the local frost-resistance material as one of the parent plants.

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Yield Stability in a Wide Range of Environments as a Primary Parameter in Winter Wheat Breeding

Cited by 3 publications

References 6 publications

Agroecological potential of winter soft wheat varieties for Middle Volga region conditions

Agroecological potential of winter soft wheat varieties for Middle Volga region conditions

Adaptation of spring soft wheat ( Triticum aestivum L.) to steppe and dry steppe growing conditions

Climate change and selection features of winter soft wheat on productivity and adaptability to it

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