scholarly journals Transgressive variability in the number of ears of the main spike in F2 populations when crossing soft winter wheat varieties of different early maturity.

2021 ◽  
Vol 1 (99) ◽  
pp. 189-206
Author(s):  
H. L. Ustinova
Keyword(s):  
Winter Wheat ◽  
Hydrothermal Conditions ◽  
Population Number ◽  
Wheat Varieties ◽  
Early Maturity ◽  
Positive Degree ◽  
Early Maturing ◽  
Soft Winter Wheat ◽  
Winter Wheat Varieties ◽  
Selection Of

Aim. Determination of the degree and frequency of positive transgressions by the number of ears of the main spike in F2 populations created by crossing varieties of soft winter wheat of different maturity depending on the hydrothermal conditions of the year and selection of economically valuable biotypes for subsequent breeding work. Methods. Field, laboratory, mathematical and statistical. Results. In the majority of F2 populations, created by hybridization of soft winter wheat varieties of different vegetation periods, a significant form-making process took place in terms of the number of spikelets in the main spike. The experimental data obtained indicate a significant effect of matched pairs before hybridization and hydrothermal conditions of the year on the manifestation and formation of the number of spikelet’s in an ear F2. So, under the conditions of 2019, the majority of F2 populations for the number of spikelet’s in the main spike (17.4–21.5 pcs.) Significantly exceeded the parental forms. A positive degree (Td = 5.3–33.3 %) and the frequency of transgression (Tf = 3.3–96.7 %) were found in 85.7 % of the populations. In 2020, the average population number of spikelets in the main spike (15.0–18.6 pcs.) Was significantly less. When used in hybridization of early maturing varieties by the parent form, the decrease in the number of spikelets was 0.5–19.9 %. At the same time, for crossing mid-early, mid-ripening and mid-late varieties, the number of spikelets decreased by 2.8–28.9 %. Thus, it can be argued that populations in which early maturing varieties were the maternal form are less exposed to unfavorable conditions of the year. A positive degree (Td = 5.3–38.9 %) and the frequency of recombinants (Tf = 3.3–46.7 %), under the conditions of 2020, was established in 35 out of 42 F2 populations, which amounted to 83.3 %. Conclusions. The use of winter wheat varieties of different early maturity in hybridization in most cases contributes to the formation of F2 in populations and the selection of positive transgressive biotypes by the number of spikelets in the main spike. Conducted studies have established a significant effect of the parental forms used in hybridization and the hydrothermal conditions of the year on the formation of the number of spikelets in the main spike in F2 populations of soft winter wheat. Populations where the early maturing varieties were the maternal form are characterized by a more stable manifestation of the number of spikelets in the main spike. The decrease in the number of spikelets in 2020 compared to 2019 was 0.5–19.9 % for 2.8–28.9 % in populations obtained by hybridization of mid-early, mid-ripening and mid-late varieties. In years with contrasting hydrothermal conditions, hybrid populations F2 were identified, which formed more than the average F2 number of spikelets in the main spike and had high rates of the degree and frequency of positive transgressions, namely: Mironovskaya early / Kolchuga; Kolchuga / Stolichnaya; Shchedraia niva / Vidrada; Antonovka / Stolichnaya.

scholarly journals Productivity and adaptability assessment of early- and latematuring varieties of winter soft wheat in the central nonchernozem region

2021 ◽  
Vol 344 (1) ◽  
pp. 129-132
Author(s):  
O. V. Gladysheva ◽  
M. I. Bannikova
Keyword(s):  
Winter Wheat ◽  
Stress Tolerance ◽  
Research Work ◽  
Average Yield ◽  
Wheat Varieties ◽  
Yield Variation ◽  
Early Maturing ◽  
Resistance To Stress ◽  
Soft Winter Wheat ◽  
Winter Wheat Varieties

Relevance and methods. Research work for breeding purposes was conducted in the context of ISA-branch center FNAC VIM in 2016–2018 G. G. the article presents the results of studies of gen-otypes of soft winter wheat in the collector’s nursery in 20162019 Material for the study were 14 varieties (early maturing and late maturing varieties). The purpose of the work is to study and select varieties based on the elements of plant productivity and adaptability in the conditions of the Central non-Chernozem region.Results. According to the results of assessing the yield of winter wheat varieties in the Ryazan region, it was found that the average yield for 2016–2019 for early — maturing varieties was 5.9 t/ha, for late-maturing varieties-6.9 t/ha. On average, over the years of research, it was noted that higher yields were observed in early — maturing varietiesMironovskaya 29 (5.6 t/ha), Mironovskaya 63 (5.4 t/ha), late-maturing varieties DSV 1113 (7.3 t/ha) and MV Nador (6.4 t/ha). The coefficient of yield variation ranged from 17.3 to 23.8% for early-maturing varieties, and from 14.1 to 24.0% for late-maturing varieties. Based on the conducted research, it was found that the highest resistance to stress of early-maturing varieties was shown by Svet — Toch (-3.4) and Mironovskaya 29 (-3.8), and late-maturing varieties-Scepter (-5.7). Mironovskaya os-tistaya (-6.9), Mironovskaya 63 (-6.7), and DSV– 1113 (10.8) and Tambor (-10.7) had the lowest stress tolerance in early maturing varieties. The maximum genetic flexibility in early — maturing varieties was observed in Mironovskaya ostista and Mironovskaya 63 (5,6), and in latematuring varieties-Iststar (8,0).

Inheritance in F1 and transgressive variability in F2 of the main ear length by crossing wheat varieties with different maturity

2020 ◽  
pp. 70-78
Author(s):  
M. Lozinskiy ◽  
H. Ustinova
Keyword(s):  
Winter Wheat ◽  
Significant Influence ◽  
Wheat Varieties ◽  
Recombinant Frequency ◽  
Shaping Process ◽  
Early Maturing ◽  
Selection For ◽  
Soft Winter Wheat ◽  
High Degree ◽  
Winter Wheat Varieties

In 2017–2019, the nature of the inheritance of ear length in F1 and transgressive variability in F2 populations obtained by hybridization of soft winter wheat varieties with different maturity were studied. It was found that in most combinations of crossbreeding, inheritance of ear length had a positive overdominance (hp = 1.1–39.0). A positive hypothetical heterosis was determined in early-maturing varieties in the maternal form, with the exception of the Kolchuga / Chornyava combination, by the length of the main ear (Ht = 3.6–44.8 %). a positive true heterosis (Hbt=1,1–32.9 %) was found in 15 of 20 hybrids. During the hybridization of medium-early, medium-ripe and medium-late varieties, all hybrids showed a positive hypothetical heterosis and 19 of 22 combinations had positive true heterosis. A significant influence of hybridization components on the indicators of the phenotypic dominance degree, hypothetical and true heterosis was established. Most of the F2 populations significantly exceeded the parental components of hybridization by the extreme maximum indexes of the main ear length, which indicates a significant shaping process and the possibility of selection on the basis of the studied trait. The maximum length of the main ear (10.3–12.1) was formed by most populations in which the maternal forms were varieties Kolchuga and Chornyava, as well as combinations Zolotokolos / Chornyava, Zolotokolosa / Stolychna and Yednist / Vidrada. The extreme maximum values reached 13.0–15.0 cm. In 36 of the 42 F2 populations, a positive degree and frequency of transgressions by the length of the main ear were determined, and their indexes largely depended on the pairs selection for hybridization. The highest degree of positive transgression was observed in the population Yednist / Vidrada (44.4 %) with a recombinant frequency of 86.7 %. Populations were characterized by a high degree and frequency of positive transgressions: Kolchuga / Yednist; Myronivska early / Antonivka; Myronivska early / Vdala; Zolotokolosa / Vidrada; Dobirna / Pyvna; Zolotokolosa / Stolychna; Zolotokolosa / Shchedra nyva; Myronivska early / Yednist; Myronivska early / Zolotokolosa; Myronivska early / B.Ts. n / a. Key words: soft winter wheat, maturity of varieties, combinations of crossbreeding, inheritance, hybrids, ear length, hypothetical and true heterosis, degree of phenotypic dominance, F2 populations, degree and frequency of transgressions.

scholarly journals Forming of productivity of new soft winter wheat varieties (Triticum aestivum L.) subject to phyto-virus pressure

2008 ◽  
Vol 0 (1(7)) ◽  
pp. 50-62
Author(s):  
В. П. Петренкова ◽  
І. М. Черняева ◽  
Т. Ю. Маркова ◽  
Н. І. Рябчун ◽  
О. О. Ісаєнко
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Triticum Aestivum L ◽  
Wheat Varieties ◽  
Soft Winter Wheat ◽  
Winter Wheat Varieties

scholarly journals Morphoagrobiological properties and productivity of new soft winter wheat varieties under the conditions of Kirovohrad variety testing station

2017 ◽  
Vol 13 (1) ◽  
pp. 95-99
Author(s):  
О. Л. Уліч ◽  
Г. М. Каражбей ◽  
С. В. Козак ◽  
Ю. Ф. Терещенко ◽  
І. В. Коховська
Keyword(s):  
Winter Wheat ◽  
Wheat Varieties ◽  
Soft Winter Wheat ◽  
Winter Wheat Varieties ◽  
Variety Testing

scholarly journals AUTUMN GROWTH AND DEVELOPMENT OF WINTER WHEAT PLANTS ON THE IRRIGATED LANDS DEPENDING ON HYDROTHERMAL CONDITIONS, VARIETIES AND TERMS OF SOWING

2019 ◽  
pp. 42-48
Author(s):  
S. O. Zaiets
Keyword(s):  
Winter Wheat ◽  
Growth And Development ◽  
Vegetation Period ◽  
Irrigated Agriculture ◽  
Winter Period ◽  
Hydrothermal Conditions ◽  
Wheat Varieties ◽  
Autumn Period ◽  
Irrigated Lands ◽  
Winter Wheat Varieties

Actuality. For the last few years the instability in grain productions in the Steppe zone has been observed that is mainly connected with the fluctuations of agrometeorological conditions and global climatic change. Climate change made corrections in terms of sowing of winter crops, which are one of the main factors of technological process, which productivity of the crops depends on. Goal. To determine the influence of agrometeorological conditions, varieties and terms of sowing on the growth and development of plants during the autumn period of vegetation when cultivating winter wheat varieties on irrigated lands. Methods. The researches were conducted at the Institute of Irrigated Agriculture NAAS using the methodology of field and laboratory experiments on irrigated lands (IOZ  NAAS, 2014). Results. During the study period it was determined that the hydrothermal conditions and the duration of the autumn period for winter wheat vegetation were significantly different. When sowing on the 20th of September, on the 1st of October, and on the 10th of October, the duration of the autumn vegetation period in 2016 was 56, 46 and 36 days, in 2015 - 100, 90 and 80 days and in 2017 - 114, 104 and 94 days respectively. When sowing on the 20th of October, winter wheat plants vegetated during 26, 70 and 84 days, respectively. Sowing terms affected winter wheat sprout population in different ways - when sowing on the 20th of September, it averaged to 372 plants/m2, on the 1st of October - 407 plants/m2, on the 10th of October – 386 plants/m2 and on the 20th of October - 392 plants/m2. It was determined that at different terms of sowing the plants entered in winter period with uneven growth and development. When sowing on the 20th of September all the varieties in autumn tillered, and in average for three years they created 4.1-5.0 shoots, developed more herbage mass of 713-761 g/m2 in comparison to other terms of sowing. The later wheat was sown, the less the plant tillering was, therefore, less herbage mass was formed. Conclusions. Agrometeorological conditions of autumn period and terms of sowing significantly affect the population of sprouts and growth processes of the plants of current winter wheat varieties. The highest plant population of all the varieties was formed when sowing on the 1st of October, the least one was formed by the varieties Mariia and Kokhana at early sowing on the 20th of September, and variety Ovidii – at early sowing on the 20th of September, and at late sowing on the 20th of October. That is, the Ovid variety is more responsive to the terms of sowing and to the deviation from the optimal (October 1) and leads to a decrease in the sprouting density. When sowing on the 20th of September and on the 1st of October all the varieties tillered intensively in autumn time, and they formed 4.1-5.0 and 3.3-3.7 shoots, respectively, developed more herbage mass comparatively to other terms of sowing -  713-761 and 313-381 g/m2 respectively. Having these terms of sowing the most intensive tillering was observed on the varieties Mariia and Kokhana, and when sowing in delayed terms no one variety had an advantage over the others.

scholarly journals Productivity and elements of its structure in new genotypes of soft winter wheat of the south of Russia

2020 ◽  
pp. 16-19
Author(s):  
Viktor Ivanovich Kovtun ◽  
Alesya Aleksandrovna Sukhareva
Keyword(s):  
Winter Wheat ◽  
Russian Federation ◽  
Standard Variety ◽  
North Caucasus ◽  
Wheat Varieties ◽  
The North ◽  
Yield Structure ◽  
The Russian Federation ◽  
Soft Winter Wheat ◽  
Winter Wheat Varieties

The article presents the best in yield genotypes of soft winter wheat, created in recent years in the North Caucasus FNATS. In terms of grain yield, on average, for two years of study (2018-2019), the best genotypes exceeded the standard variety Thunder from 0,50 to 1,97 t / ha. A particularly high excess over the standard was noted for the main elements of the yield structure: a mass of 1000 grains, the number of grains per spike, and a mass of spike grain. It is indicated that such varieties as Shield, Armada, Lyuda, Batya, Moretz, Source, 1217/14, 1008/15, 1332/15, 1731/15 can be effectively used as genetic sources when creating new winter wheat varieties for the conditions of the Russian Federation.

scholarly journals Soft winter wheat varieties with resistance to negative environmental factors

2018 ◽  
Vol 14 (3) ◽  
pp. 255-261
Author(s):  
Н. В. Булавка ◽  
Т. В. Юрченко ◽  
О. М. Кучеренко ◽  
А. В. Пірич
Keyword(s):  
Environmental Factors ◽  
Winter Wheat ◽  
Wheat Varieties ◽  
Soft Winter Wheat ◽  
Winter Wheat Varieties

scholarly journals Variability of elements of yield structure and yield of winter wheat varieties depending from pre-sowing calibration

2020 ◽  
Author(s):  
M. Kyluk ◽  
◽  
O. Onoprienko ◽  
N. Syplyva ◽  
A. Gaidai ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Large Fraction ◽  
Climatic Zone ◽  
Forest Steppe ◽  
Wheat Varieties ◽  
Seed Material ◽  
Middle Fraction ◽  
Soft Winter Wheat ◽  
Winter Wheat Varieties

The article substantiates the need to improve the elements of technology for growing varieties of soft winter wheat, taking into account the size of the seed material and weather conditions of the growing season. It is determined that along with varietal properties, the use of pre-prepared seeds for sowing has an impact on its sowing properties, field germination, growth and development of plants, their formation of elements of productivity and grain yield. The study was conducted on five registered varieties of soft winter wheat 'Tsarychanka', 'Karmelyuk', 'Sidir Kovpak', 'Dykanka' and 'Sanzhara' in the agro-climatic zone of the central part of the Forest-Steppe of Ukraine. The results of research showed that the highest field germination of seeds have the variety 'Karmelyuk' for sowing shallow and medium fraction of seeds (94 and 90%, respectively), and the variety 'Dykanka' - sowing medium and large fraction (95 and 86%, respectively). The percentage of germination of seeds of varieties 'Tsarychanka', 'Sanzhara' is almost at the same level 82 and 89, respectively. The highest indicators of elements of structure of an ear are found at the varieties 'Karmelyuk' - 30,5 pieces of grains in an ear, for its weight in an ear of 0,86 g, 'Dykanka' - 30,6 pieces of grains in an ear, for its weight in an ear 0, 87. The use of seeds of the middle fraction for sowing provided the highest yield of varieties 'Karmelyuk', 'Dykanka' which amounted to 4.7 t / ha. When sowing seeds of a large fraction, the highest yields were obtained by 'Dykanka' and 'Sanzhara' varieties - 4.8 and 4.9 t / ha, respectively. The aim of the study. To determine the influence of seed fraction on sowing qualities, variability of yield elements of soft winter wheat varieties. The experiment was conducted in the central forest-steppe of Ukraine, using general research methods studied in agronomy The material for the study were winter wheat varieties of Poltava State Agrarian Academy: "Tsarchanka", "Karmelyuk", "Sidir Kovpak", "Dykanka" and "Sanzhara". Sowing of the studied varieties was carried out with seeds selected on sieves and divided into fractions: shallow (1), medium (2), large (3), and mixture (4). Agrotechnics in the study are generally accepted for the soil-climatic zone of the Forest-Steppe of Ukraine. The increase in the weight of 1000 grains was significantly influenced by sowing with the middle fraction of seeds, which is characteristic of the variety 'Sidir Kovpak' (50.4 g), large - 'Tsarychanka' (52.5 g), 'Dykanka' (49.2 g) and 'Sanzhara' (48.4 g), for the variety 'Karmelyuk' the weight of the grain increases when sown with a mixture of seeds (52.0 g). It was determined that the size of the seed material had an impact on the elements of the structure of the ear of corn and grain size. Thus, the variety 'Tsarichanka' formed 26.8 pieces. grains in the ear, for its weight of 0.65 g when sown by the average fraction of seeds, variety 'Karmelyuk' on the same variants of the experiment, respectively - 30.5 pcs. and 0.86 g, grade 'Sidir Kovpak' - 27.4 pcs. and 0.85 g, 'Dykanka' - 30.6 pcs. and 0.86 g. For these varieties, the dependence is established: sowing in shallow and large fractions, as well as a mixture of seeds reduces the number and weight of grains from the ear. In the variety 'Sanzhara' revealed a maximum increase in the number of grains from the ear to 26.8 pieces. and the mass of grain from the ear of 0.88 g in the options for sowing a large fraction of seeds Yields of the studied varieties of winter wheat depending on the size of the seed material varied in the range from 3.08 to 4.86 t / ha, with the highest value in option 3 (large seeds) in the varieties 'Sanzhara' (4.9 t / ha) and 'Dykanka' (4.8 t / ha), on option 2 (average seed) 'Karmelyuk' (4.67 t / ha), 'Sidir Kovpak' (4.29 t / ha) and 'Tsarychanka' - 4 .0 t / ha. It was found that the yield of all studied varieties of winter wheat has a strong correlation with seed size and number of grains in the ear (r> 0.70), the average correlation between the weight of 1000 grains and grain yield was found in varieties' Tsarychanka ',' Karmelyuk 'and' Dykanka '(r = 0.31… 0.69). In the variety 'Sanzhara', the weight of the grain from the ear and the yield have a rectilinear correlation of medium strength.

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