scholarly journals The study of the adaptive properties of the initial material of winter bread wheat according to the trait ‘1000-grain weight’

2021 ◽  
Vol 344 (1) ◽  
pp. 74-78
Author(s):  
N. S. Kravchenko ◽  
S. V. Podgorny ◽  
N. N. Vozhzhova
Keyword(s):  
Bread Wheat ◽  
Wheat Breeding ◽  
Grain Weight ◽  
Breeding Value ◽  
Rostov Region ◽  
Winter Bread Wheat ◽  
World Collection ◽  
Economically Valuable Traits ◽  
Adaptability Parameters ◽  
1000 Grain Weight

Introduction. One of the urgent direction in winter wheat breeding is to improve its adaptability, enhance the ability of varieties to give maximum productivity under certain environmental conditions.Methods. The objects of research were 290 samples of winter bread wheat of various ecological and geographical origin taken from the world collection of domestic and foreign selection. In order to estimate the adaptability parameters of the varieties according to the trait ‘1000-grain weight’ there have been selected 31 samples, in accordance with several economically valuable traits. The variety ‘Ermak’ was used as a standard variety.Results. The study has resulted in the identification of the collection samples with different adaptive properties. The samples with bi > 1 ‘Slavna’ (Si2 = 3.01), ‘Chornyava’ (Si2 = 5.64), ‘Etana’ (Si2 = 5.64) can be classified as the varieties of intensive type. The i samples with bi < 1 ‘Ermak’ (bi = 0.93), ‘L 19578’ (bi = 0.42), ‘Simonida’ (bi = 0.21) can be classified as the varieties of extensive type. The samples ‘Vinnichanka’ (bi = -0.07), ‘Zlatka’ (bi = -0.71), ‘Ling Xing 99’ (bi = -0.26) and ‘Sailor’ (bi = -1.22) were identified as adaptable and highly adapted. The samples ‘Vinnichanka’ (Si2 = 0.74), ‘EistanzueLo Benteveo’ (Si2 = 0.82), and ‘Zhong Ping 1597’ (Si2 = 0.23) showed their stability of the trait ‘1000 grain weight’. The samples ‘Zhong Ping 1597’ (Hom = 12119.6), ‘Shestopalivka’ (Hom = 3703.3) and others were characterized by high homeostaticity. The maximum breeding value were identified in the varieties ‘Ling Xing 99’ (Sc = 47.4), ‘Zhong Ping 1597’ (Sc = 46.5), ‘Shestopalivka’ (Sc = 46.3), ‘EistanzueLo Benteveo’ (Sc = 46.3), ‘L 19578’ (Sc = 46.3) and ‘Akter’ (Sc = 45.0). The identified genotypes have been recommended to be used into crossings to develop highly productive varieties adapted to the conditions of the southern part of the Rostov region.

scholarly journals Seed quality indicators of winter bread wheat accessions depending on the grain size

2021 ◽  
pp. 84-93
Author(s):  
O. O. Skrypnyk ◽  
O. Yu. Leonov ◽  
T. P. Shyianova ◽  
K. Yu. Suvorova ◽  
Z. V. Usova
Keyword(s):  
Grain Size ◽  
Bread Wheat ◽  
Quality Indicators ◽  
Seed Quality ◽  
Grain Weight ◽  
Plant Production ◽  
Germination Energy ◽  
Winter Bread Wheat ◽  
1000 Grain Weight ◽  
Wheat Seeds

Purpose and objectives. To evaluate the effect of sorting seeds by size on their quality indicators: germination energy, laboratory germinability and 1000-grain weight. Materials and methods. The experiments were carried out in the experimental field of the Plant Production Institute named after V.Ya. Yuriev of NAAS in accordance with the field experimentation method in 2016–2018; 26 winter bread wheat lines and varieties were studied. The varieties and lines were grown in variety trial experiments; the plot area was 10 m2. Seeds were separated on sieves of a laboratory separator RLU-3; the 1000-grain weight was measured; the laboratory germinability and germination energy were determined. Results and discussion. When winter bread wheat seeds are sorted on sieves, they are separated into fractions with various 1000-grain weights. The separated fractions of winter wheat seeds have different sowing qualities. The 2.5 x 20 mm seeds and 2.8 x 20 mm seeds are of the best quality (germination energy, germinability). It was found that in 2016–2018, the germination energy, laboratory germinability and 1000-gain weight changed depending on the growing conditions. They were the highest in 2017. The varieties with a high 1000-grain weight have been identified: Doskonala, Pryvablyva, Smuhlianka, and Haiok. The highest germination energy and germinability were intrinsic to varieties Yednist, Harmonika and Bunchuk. Yednist (93.3%), Harmonika (94.3%), Metelytsia Kharkivska (94.5%), Bunchuk (94.7%), Alians (93.3%), Podolianka (92.5%), Patriotka (93.6%), Zapashna (93.3%), Dyvo (93.7%), Doskonala (93.6%), Krasa Laniv (94.0%), Smuhlianka (93.1%), and Erythrospermum 408-13 (93.7%) had a high germinability of small seeds (2.2 x 20 mm). To clean these varieties, especially in years with low seed yields, it is recommended to use seeds of the standard size (2.2–2.5 x 20 mm). Conclusions. The relationships between the grain size and sowing qualities of seeds have been established. Separation of seeds is an effective technological method allowing for selection of top-quality seeds

Winter bread wheat productivity elements and yield capacity in relation to its origin

2019 ◽  
pp. 47-57
Author(s):  
Yu.O. Chernobai ◽  
V.K. Riаbchun ◽  
A.V. Yarosh ◽  
A.I. Morgunov
Keyword(s):  
Bread Wheat ◽  
Grain Weight ◽  
High Yield ◽  
Spike Density ◽  
Winter Bread Wheat ◽  
Grain Number Per Spike ◽  
New Varieties ◽  
Yield Capacity ◽  
Breeding Efficiency ◽  
1000 Grain Weight

Aim. To compare winter bread wheat accessions of different origin for spike productivity elements and yield capacity. Results and Discussion. 104 winter bread wheat accessions from 10 countries were studied. We distinguished, an accession from Turkey, SWW 1-904 (12.8 cm) due to its long spike. The largest number of spikelets was recorded in accessions SWW 1-904 (TUR), Veha (RUS) and Pamiatі Hіrka (UKR) - 21 spikelets. Turkish accession SWW 1-904 was noticeable for the grain number per spike. The greatest spike density was observed in accession Zluka (UKR) - 2.5 spikelets / cm. The spike weight and grain weight per spike were the highest in SWW 1-904 (TUR): 6.0 g and 4.5 g, respectively. Accessions Lehenda Myronivska (0.81), Prydniprovska (UKR), Kuma, Yunona, Avgusta (RUS) (0.80) had the highest index of spike productivity. The 1000-grain weight of 55.0 g was recorded in intensive variety SWW 1-904 (TUR). Accessions from Ukraine, Darynka Kyivska and Raihorodka combined high winter hardiness (9 points) with high yield capacity (955 g/m2). Conclusions. Thus, winter bread wheat accessions that are valuable starting material for developing new varieties with a set of important economic features, were identified. They can increase the breeding efficiency and accelerate the breeding process.

scholarly journals The breeding work on the winter bread wheat varieties of intensive type in the FSBSI “Agricultural Research Center “Donskoy”

2020 ◽  
pp. 19-25
Author(s):  
O. V. Skripka ◽  
S. V. Podgorny ◽  
A. P. Samofalov ◽  
V. L. Chernova
Keyword(s):  
Winter Wheat ◽  
Bread Wheat ◽  
Frost Resistance ◽  
Wheat Breeding ◽  
The State ◽  
Irrigated Agriculture ◽  
Wheat Varieties ◽  
Breeding Work ◽  
Rostov Region ◽  
Winter Bread Wheat

The systematic study on winter wheat breeding began in 1955 in the former Zernograd experimental station, and now the Federal State Budgetary Scientific Institution “ARC “Donskoy”. Under these conditions, the development of the most suitable for local conditions varieties of intensive type with increased frost resistance determined the main direction of winter wheat breeding in those years. In the early 1980s, the area of black fallow increased in the Rostov region, much attention was paid to irrigated agriculture. There was planned to increase the area under irrigation in the North Caucasus to 1 million hectares. Therefore, there was set a goal to develop highly productive, low-stemmed, resistant to lodging varieties, responsive to mineral fertilizing with complex immunity to diseases. The breeding work of the laboratory for the breeding and seed production of winter bread wheat of an intensive type over the past forty years resulted in the development of 22 varieties of intensive type with good adaptability to the conditions of the Rostov region. In 2020, 17 winter bread wheat varieties of an intensive type were included into the State List of Breeding Achievements, five varieties ‘Yubiley Dona’, ‘Zodiak’, ‘Univer’, ‘Razdolye’, ‘Rubin Dona’ are currently undergoing the State Variety Testing at the SVTs of the Russian Federation. A stable productivity improvement is possible only with the emphasis on the development of varieties with broad adaptive properties, providing sufficiently high yields under various cultivation conditions. Among the breeding traits that affect productivity stability, the most significant in the conditions of the Don are winter and frost resistance, disease resistance, drought resistance, early ripeness, and grain quality. Therefore, the adaptive potential increase is the most important task for the future breeding. In order to solve this problem, intraspecific and interspecific hybridization, followed by targeted selection, remains the main breeding method of winter bread wheat of an intensive type.

scholarly journals The new early-maturing winter bread wheat variety ‘Zhavoronok’

2021 ◽  
Vol 1 (2) ◽  
pp. 34-39
Author(s):  
M. M. Ivanisov ◽  
D. M. Marchenko ◽  
E. I. Nekrasov ◽  
I. A. Rubas’ ◽  
I. V. Romanyukina ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Bread Wheat ◽  
Wheat Variety ◽  
Wheat Breeding ◽  
Early Maturity ◽  
High Productivity ◽  
Winter Bread Wheat ◽  
Early Maturing ◽  
Economically Valuable Traits ◽  
Bread Wheat Variety

There has been presented the characteristics of the new early-maturing winter bread wheat variety ‘Zhavoronok’ according to economically valuable traits and properties. The development of early-maturing grain crop varieties is one of the main issues of grain production. The combination of a relatively short vegetation period with high productivity in one genotype helps to solve a number of agricultural concerns. This allows using techniques more systematic, reducing the intensity of harvesting and yield loss significantly, which occur when cultivating simultaneously maturing varieties on large areas. The purpose of the current study was to evaluate the new early-maturing winter bread wheat variety ‘Zhavoronok’ on the basis of a set of economically valuable traits. The study was carried out in 2015–2019 with such forecrops as maize for grain, weedfree fallow, peas and sunflower. In the department of winter wheat breeding and seed production of the FSBSI Agricultural Research Center “Donskoy” a lot of work is being done on winter wheat breeding, and one of the important directions is the development of early-maturing varieties. The winter bread wheat variety ‘Zhavoronok’ has been included in the State List of Breeding Achievements of the Russian Federation since 2020 and approved for use the North Caucasus and Nizhne-Volga regions. According to the length of the growing period, it belongs to the early-maturing group. Its high and stable productivity with various forecrops is explained by a complex of positive economically valuable traits and properties, such as high productivity of a head, resistance to lodging and brown rust, high frost resistance (the same as that of the variety ‘Don 107’). The variety ‘Zhavoronok’ is capable of producing good yields and full grain in arid years, its early maturity allows it to ‘escape’ drought, disease and other unfavorable conditions.

scholarly journals Host-pathogen interaction between spring wheat and Septoria nodorum with reference to resistance breeding

1985 ◽  
Vol 57 (1) ◽  
pp. 1-66
Author(s):  
Reijo Karjalainen
Keyword(s):  
Grain Yield ◽  
Spring Wheat ◽  
Wheat Breeding ◽  
Grain Weight ◽  
Septoria Nodorum ◽  
Spore Concentration ◽  
Screening Techniques ◽  
Host Pathogen Interaction ◽  
Host Pathogen ◽  
1000 Grain Weight

Host-pathogen interaction between spring wheat and Septoria nodorum Berk. with applications for wheat breeding were studied. Ultrastructure of interactions was studied using electron microscopic techniques. Following inoculation, conidia of S. nodorum germinate, form appressoria anda penetration peg which directly penetrates through the cell walls. It is suggested that most penetration attempts fail because of cellular defence reactions, formation of papillae and cell wall alterations. Inoculation with low spore concentration reduced grain yield of Hankkija’s Taava cultivar by 10 % and 1000-grain weight by 14 %. Inoculation with high spore concentration on large plots of Tähti cultivar reduced grain yield by 32 % and 1000-grain weight by 18 %. Inoculation with high spore concentration on normal breeding plots of Tähti cultivar reduced grain yield by 35 % and 1000-grain weight by 21 % and the grain yield of Kadett cultivar by 27 % and 1000-grain weight by 20 %. Inheritance studies on F2 progenies of spring wheat crosses involving susceptible and moderately or highly resistant parents suggest that heredity component of symptom expression is moderate level and breeding success depends mainly on efficient screening techniques. Resistance was associated with tallness in crosses, and cultivar trials suggest that resistance is positively associated with late maturation time. Field screening techniques based on small plots and artificial inoculation showed that the most resistant entries were wild Triticum species and late and tall cultivars. Seedling plant tests based on attached seedling leaves and detached leaves revealed easily the most resistant and most susceptible cultivars. The overall correlation between seedling tests and field tests was quite high. The results are discussed in relation to wheat breeding strategies for resistance to S. nodorum.

Enhancement of dwarf wheat germplasm with high-yield potential derived from induced mutagenesis

2016 ◽  
Vol 16 (1) ◽  
pp. 74-81 ◽  
Author(s):  
Hongchun Xiong ◽  
Huijun Guo ◽  
Yongdun Xie ◽  
Linshu Zhao ◽  
Jiayu Gu ◽  
...  
Keyword(s):  
Yield Components ◽  
Field Experiments ◽  
Wheat Breeding ◽  
Grain Weight ◽  
Yield Potential ◽  
High Yield ◽  
Dwarfing Genes ◽  
Biosynthetic Genes ◽  
Specific Pcr ◽  
1000 Grain Weight

AbstractThe dwarfing wheat (Triticum aestivum L.) breeding has promoted a dramatic increase in yields. Since the utilized dwarfing genes in wheat are very limited, identification of novel dwarfing genes is necessary for improving the genetic diversity of wheat. In this study, more than 300 dwarfing wheat lines from induced mutation were screened by kompetitive allele-specific PCR and gibberellin (GA) treatment. The 17.49% of Rht-D1b and 1.37% of Rht-B1b dwarfing mutants were identified in this mutant group. Additionally, Rht-D1b mutants showed more effective in reduction of plant height and higher 1000-grain weight comparing with that of Rht-B1b mutants. By combing with comparison of yield components and expression profile of GA biosynthetic genes with wild-type, the GA-responsive mutant dm15 without directly involvement in GA metabolism, significantly increased 1000-grain weight but no change of other yield components in two locations of field experiments. Meanwhile, another elite mutant dm11 with change of GA biosynthetic genes expression was also identified. These mutants will be promising candidates for dwarfing wheat breeding.

scholarly journals EFFECT OF REGULATION OF SOURCE-SINK RELATIONSHIP ON GRAIN YIELD AND ITS COMPONENT OF DIFFERENT BREAD WHEAT CULTIVARS

2016 ◽  
Vol 47 (2) ◽  
Author(s):  
Jaddoa & Kadom
Keyword(s):  
Growth Rate ◽  
Grain Yield ◽  
Bread Wheat ◽  
Flag Leaf ◽  
Grain Weight ◽  
Abu Ghraib ◽  
Research Station ◽  
Wheat Cultivars ◽  
Source Sink ◽  
1000 Grain Weight

A field trial was conducted at Abu-Ghraib Research Station-Agricultural Research Directorate-Ministry of Agriculture during the growing seasons of 2012-2013 and 2013-2014. The objective was to investigate the effect of source-sink Regulation on grain yield  and its companents of five bread wheat cultivars (Triticum aestivum L.). Randomized complete block design with the arrangement of split-plots with three replicates was used. Bread wheat cultivars (Bohooth-22, IPA 99, Abu-Ghraib-3,Al-Fath and Al-Rasheed) occupied the main plots while treatments of source-sink relationship regulation occupied the sub-plots. They included eight treatments: Con. control (Con.), S1 (removal of lamina of the flag leaf of main stem), S2 (removal of laminas of the leaf  beneath the flag leaf), S3 (removal of both lamina of the leaf  and the leaf under flag leaf), S4 (removal of upper third spikelets),S5 (removal of median third spikelets), S6 (removal of lower third spikelets) and S7 (removal all spikelets from one side of spike) . Characteristics of plant height, flag leaf area, spike length, no of spikelet per spike, spike weight, and grain yield and its components were measured and estimated. Results of the present study indicated the followings:  Cultivar (Bohooth-22) gave the highest 1000 grain weight (35.70 and 35.31 g) the highest grain yield (5.467 and 5.148 t.ha-1) in both seasons, respectively compared with Abu-Ghraib3 and Al-Rasheed cultivars which gave lowest grain yield (4.918,4.364, 4.239 and 4.352 t.ha-1) in both seasons, respectively and then less 1000 grain weight (30.15, 32.66, 32.61 and 32.77 g), in both seasons, respectively. Treatment (Con.) i.e no modification of source-sink relationship gave the highest grain yield (5.93 and 5.66 t.ha-1) in both seasons, respectively. Treatments of regulation source (S1 and S3)gave grain yield (4.909, 4.698, 4.621and 4.356 t.ha-1), respectively while (S5) treatment gave the lowest grain yield (4.203 t.ha-1) in the first season and (4.061 t.ha-1) in the second season. This indicates that sink regulation treatment was the most influencial in reducing grain yield than the source regulation treatment, especially, treatment (S5) in both seasons where the  median third of spikelets had been removed due to the reduction of spike growth rate (3.18 and 2.49 g.day-1) in both seasons compared with the (Con) treatment which gave the highest values of spike growth rate (3.91 and 3.12 g.day-1) in both seasons, respectively which resulted in the reduction of dry matter translocation in the (S5) treatment (1.87 and 1.74 g.day -1) and consequently in the reduction of 1000 grain weight (30.09 and 31.199) compared with (34.99 and 37.12 g) in the (Con.) treatment in both seasons, respectively.

scholarly journals Comparison of productivity elements of recombinants of spring bread wheat with translocation from Thinopyrum elongatum carrying rust resistance genes

2021 ◽  
pp. 15-21
Author(s):  
V. V. Piskarev ◽  
N. I. Boyko ◽  
Е. V. Morozova ◽  
V. Yu. Sukhomlinov ◽  
V. A. Aparina ◽  
...  
Keyword(s):  
Bread Wheat ◽  
Resistance Genes ◽  
Puccinia Triticina ◽  
Grain Weight ◽  
Genetic Composition ◽  
Spring Bread Wheat ◽  
Lower Productivity ◽  
Thinopyrum Elongatum ◽  
1000 Grain Weight ◽  
Rust Resistance Genes

There have been presented the results of a comparative estimation of recombinants developed on the basis of two commercial varieties (‘Sibirskaya 17’ and ‘Novosibirskaya 31’) hybridized with ‘Thatcher Lr19’ and ‘Thatcher Lr24’. Recombinants were evaluated in the field conditions in 2016, 2017 and 2020. The purpose of the current study was to identify the effect of translocations from Thinopyrum elongatum on the manifestation of productivity elements in recombinants of spring bread wheat developed on the basis of two commercial varieties. The analysis of the genetic composition of the Puccinia triticina populations in Western and Eastern Siberia did not identify genes which were virulent to resistance genes Lr19, Lr24, Lr28, Lr41, Lr47, Lr45 LrSp, Lr6Agi 1 and Lr6Agi 2. The recombinants developed on the basis of the variety ‘Sibirskaya 17’ (the variety productivity was 398.3 g/m2 , grain weight per head was 1.35 g, 1000-grain weight was 37.8 g) were characterized by the severity of the main agronomically valuable traits at the level of the recipient variety, or significantly lower (productivity was 271.5–327.8 g/m2 , grain weight per head was 1.03–1.16 g, 1000-grain weight was 32.5–36.4 g). The recombinants carrying translocations (the length of the period ‘sprouts-heading’ was 44.4 and 44.5 days, grain weight per head was 1.20 and 1.24 g) developed on the basis of the variety ‘Novosibirskaya 31’ (with 42.4 days, 1.02 g) have demonstrated a significant increase in the length of the period ‘sprouts-heading’ and grain weight per head in comparison with the recombinants without translocations (41.6 and 43.6 days, 0.99 and 1.10 g). On average over 3 years, 12 recombinants hybridized from the combination ‘Novosibirskaya 31 x Thatcher Lr19’ produced higher yields (355.6–427.5 g/m2) than those of the recipient variety (301.5 g/m2), both with (6 pcs.), and without (6 pcs.) a translocation.

Stability and plasticity of grain weight per spike, 1000-kernel weight and yield of mid-high and semi-dwarf genotypes of winter bread wheat

2019 ◽  
pp. 81-93
Author(s):  
A.V. Yarosh ◽  
V. K. Riabchun ◽  
O. O. Chetveryk ◽  
Yu. O. Chernobai
Keyword(s):  
Bread Wheat ◽  
Geographical Origin ◽  
Regression Coefficient ◽  
Kernel Weight ◽  
Grain Weight ◽  
Environmental Response ◽  
Breeding Programs ◽  
Winter Bread Wheat ◽  
Growing Conditions ◽  
The Stability

Aim. To determine the stability and plasticity of the grain weight per spike, 1000-kernel weight and yield of mid-high and semi-dwarf winter bread wheat accessions. Results and Discussion. We determined the stability and plasticity of the grain weight per spike, 1000-kernel weight and yield of mid-high and semi-dwarf winter bread wheat accessions. The meteorological conditions during the vegetation periods in 2015-2018 made it possible to differentiate winter bread wheat accessions by stability and plasticity of the grain weight per spike, 1000-kernel weight and yield. The best winter bread wheat accessions of the NCPGRU’s collection, which were distinguished by grain weight per spike, 1000-kernel weight and yield, were evaluated for their stability degree (Sd) and plasticity level by regression coefficient. It was found that the proportion of accessions with high homeostaticity (bi <1) for the traits under investigation, which was most typical for mid-genotypes, was 70.6% for the yield, 64.7% for the 1000-kernel weight and 58.8% for the grain weight per spike, which is important for breeding for adaptability. Sources of high homeostaticity with a regression coefficient of <1 for the grain weight per spike (Zorepad Bilotserkovskyi, Anatoliia (UKR)); 1000-kernel weight (Krasa Laniv (UKR); Ilona (SVK)); yield (Pochaina, Krasa Laniv (UKR); Adel, Kazachka (RUS); OR2070011 (USA); Ilona (SVK), Darunok Podillia (UKR)) were singled out. In addition, we selected accessions with a wide environmental response (bi> 1), which can best fulfill their yield capacity under improved growing conditions or on an increased soil fertility, for the grain weight per spike (Zorepad Bilotserkovskiy, Anatoliia (UKR)); 1000-kernel weight (Harmonika, Prynada (UKR), Moskvich (RUS), Aran (AZE)); yield (Biloretskovskyi Zorepad, Prynada (UKR), Morozko, Vid (RUS)). Conclusions. The study of collection material of different eco- geographical origin enabled us to identify new sources of grain weight per spike, 1000-kernel weight and yield with increased environmental plasticity and stability, the use of which in breeding programs will contribute to the development of new highly productive and more valuable genotypes. Sources of high homeostaticity in winter bread wheat are valuable starting material to develop new highly adaptive varieties.

Adaptability of winter bread wheat by homeostaticity and breeding value

2021 ◽  
pp. 36-47
Author(s):  
AV Yarosh ◽  
VK Riabchun
Keyword(s):  
Bread Wheat ◽  
Starting Material ◽  
Breeding Value ◽  
Forest Steppe ◽  
Wheat Varieties ◽  
Average Value ◽  
Winter Bread Wheat

Aim. To determine the adaptability of modern winter bread wheat varieties by homeostaticity and breeding value of their yields in the northeastern forest-steppe of Ukraine. Results and Discussion. The adaptability of modern winter bread wheat varieties was determined by homeostaticity and breeding value of their yields in the northeastern forest-steppe of Ukraine. It was found that, in mid-tall genotypes, homeostaticity (Hom) ranged 22.6 to 84.5 with a higher breeding value (Sc = 3.49–6.32) compared to semi-dwarf accessions (Hom = 18.9–56, 3 and Sc = 3.16–4.99, respectively). Korovaina (Hom = 84.5) and Vyhadka (Hom = 75.8) (UKR) are highly homeostatic mid-tall accessions. As to the semi-dwarf group, MV Nador (HUN) was the best in terms of this trait (V = 10.8%; Hom = 56.3). We demonstrated that the shares of the middle-homeostatic accessions were 28.6% in the mid-tall group and 30.8% in the semi-dwarf group; the shares of the low-homeostatic accessions were 57.1% and 69.2%, respectively. We selected sources with the highest breeding value for this parameter of adaptability, which exceed its average value in the experiment (Sc = 4.9). They include Metelytsia Kharkivska (Sc = 6.32), Korovaina (Sc = 6.16), Raihorodka (Sc = 6.00), Vyhadka (Sc = 5.74), Zoloto Ukrainy (Sc = 5.63), Darynka Kyivska (Sc = 5.42), and Hubernator (Sc = 5.08) (UKR). The shares of sources distinguished due to their breeding value are 50% in the mid-tall group and 38.5% in the semi-dwarf group. Conclusions. Korovaina (Hom = 84.5; Sc = 6.16) and Vyhadka (Hom = 75.8; Sc = 5.74) (UKR) are the most significant mid-tall genotypes that combine high homeostaticity and breeding value. The sources of adaptability identified in the study of homeostaticity and breeding value are valuable starting material to create new highly adaptive and promising varieties of winter bread wheat in the northeastern forest-steppe of Ukraine.

Sign in / Sign up

Export Citation Format

Share Document