Breeding of Cereal Crops at Dobrudzha Agricultural Institute – General Toshevo, Bulgaria

Mihova, Gallina; Baychev, Valentin; Alexandrov, Todor; Petrova, T. M.; Stanoeva, Yordanka; Ivanova, Vanya

doi:10.55302/jafes18722124m

Cited by 4 publications

(3 citation statements)

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“…Maximizing the assessment and characterization of wheat genotypes in various repositories is instrumental in optimizing the utilization of these invaluable resources. Bulgaria, known for its rich history in wheat cultivation, has been curating collections of wheat genotypes, primarily in the breeding centers of Dobrudzha Agricultural Institute in General Toshevo and the Institute of Plant Genetic Resources in Sadovo [199][200][201]. These collections represent vital repositories for exploring and identifying cultivars with improved traits, particularly in relation to their ability to withstand drought conditions.…”

Section: Exploring the Drought Resistance Of Bulgarian Wheat Genotypesmentioning

confidence: 99%

Exploring the Genotype-Dependent Toolbox of Wheat under Drought Stress

Vassileva,

Georgieva,

Zehirov

et al. 2023

Agriculture

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Drought stress imposes substantial constraints on the growth and production of wheat (Triticum aestivum L.), a globally important cereal crop essential for food security. To mitigate these adverse effects, researchers are intensifying their efforts to comprehend how different genotypes respond to drought stress, aiding in the development of sustainable breeding and management strategies. This review summarizes past and recent research on genotype-dependent responses of wheat plants to drought stress, encompassing morphological, physiological, biochemical, molecular, genetic, and epigenetic reactions. Screening drought-affected features at early developmental stages can provide valuable insights into the late growth stages that are closely linked to plant productivity. This review underscores the importance of identifying traits associated with drought resistance, and the potential of leveraging wheat diversity to select cultivars with desirable agronomic characteristics. It also highlights recent advancements in investigating Bulgarian wheat genotypes with varying levels of drought tolerance, specifically in detecting essential features contributing to drought tolerance. Cultivating drought-resistant wheat genotypes and understanding stress stability determinants could markedly contribute to enhancing wheat production and ensuring stable yields under changing climate conditions.

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Section: Exploring the Drought Resistance Of Bulgarian Wheat Genotypesmentioning

confidence: 99%

Exploring the Genotype-Dependent Toolbox of Wheat under Drought Stress

Vassileva,

Georgieva,

Zehirov

et al. 2023

Agriculture

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“…It is primarily used for animal feed and serves as an essential ingredient in the brewing industry. Breeding efforts have focused on improving yield potential, disease resistance, drought tolerance, and quality traits such as protein content, grain size, and malting characteristics (Mihova et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of genetic parameters of winter barley varieties under water deficit conditions

DYULGEROVA,

DYULGEROV

2023

JCEA

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The aim of the present study was to use REML/BLUP-based procedures in order to estimate variance components and genetic parameters and to determine correlations between grain yield and yield-related traits of winter barley varieties. Studied genotypes were grown in two seasons characterized by different levels of water deficit (precipitation sum was less by 15% in the first growing year and 36% in the second growing year than the long-term precipitation sum). A reduction was observed in all studied yield-related traits, with grain yield in the second year being more than 70% lower than that measured in the first growing year. Lower values of broad-sense heritability in the second growing year for the traits number of spikelets and grains per spike, grain weight per spike, and grain yield were found suggesting that the direct selection of these traits under drought stress conditions will be less effective. Varieties ranking based on the FAI-BLUP index strongly varied across growing seasons, but in both years variety Bojin was selected as a highperforming variety for multiple traits. Considerable differences were observed in the magnitude and directions of correlations between grain yield and yield-related traits between two growing seasons. These findings, in the context of the increasing frequency and duration of drought stress in the region, suggest a longer period of multi-year testing and complicate the process of selection in breeding programs of winter barley.

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“…The breeding strategy goes through different stages, each of which has its peculiarities. They are related to changes in the model and architectonics of the plant, the phenological development, the level and stability of the qualitative parameters, the resistance to abiotic and biotic stress, the nutrition regime and are in accordance with the market requirements (Mihova et al, 2018a). To a large extent, the structure of yield also experiences progress.…”

Section: Introductionmentioning

confidence: 99%

Peculiarities in the Structure of Yield in Common Wheat Accessions from Different Ecological and Geographic Origin

Mihova¹

2020

IJIAAR

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Dobrudzha Agricultural Institute (DAI) is the largest breeding center for cereals in Bulgaria. Among the varieties developed here, 36 genotypes were included in the national list, a large part of them being strong and medium strong wheat cultivars with increased strength. It is a disputable question if a plateau has been reached in the breeding of wheat and what are the further methods for increasing of the production potential. Until recently, the increasing of the spike productivity lay at the basis of the breeding strategy, primarily through a higher number of florets and grains formed per spikelet at the expense of a lower number of productive tillers. The contemporary high level of breeding and the market requirements impose the necessity to search for new approaches to increase productivity.The aim of the investigation was to characterize the structure of the yield in new common winter wheat accessions included in the gene pool of DAI. The investigation was carried out during 2015 -2019 and encompassed four growth seasons with different combinations of meteorological factors allowing for good differentiation. The trial was designed in two replicates, the size of the harvest plot being 10 m2. Sixty-six accessions from different ecological and geographic origin and with specific combination of the economically important traits were evaluated. The cultivars from France were with the highest coefficient of tillering, followed by the cultivars from Croatia and Germany. The variability with regard to 1000 kernel weight was considerable. The Bulgarian and Serbian accessions were with the highest absolute weight, and the French ones -with the lowest. The differences with regard to the number of grains in spike were significant at a high level, but in the separate group, Athlon (DE), Moison (F), Fani (BG), Fidelius (AT), Iveta (BG) Korona (BG) and Simonida (RS) were with high values of the trait. Within the period, the Bulgarian cultivars, which realized highest yield, were Rada and Dragana, and among the European ones, these were Andalou, Basmati, NS 407 and Sofru.

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Breeding of Cereal Crops at Dobrudzha Agricultural Institute – General Toshevo, Bulgaria

Cited by 4 publications

References 0 publications

Exploring the Genotype-Dependent Toolbox of Wheat under Drought Stress

Exploring the Genotype-Dependent Toolbox of Wheat under Drought Stress

Evaluation of genetic parameters of winter barley varieties under water deficit conditions

Peculiarities in the Structure of Yield in Common Wheat Accessions from Different Ecological and Geographic Origin

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