scholarly journals Identification of drought resistance of winter bread wheat varieties and lines by vegetation and laboratory methods

2021 ◽  
Vol 937 (2) ◽  
pp. 022117
Author(s):  
V Golubova ◽  
V Gaze ◽  
I Lobunskaya

Abstract The article discusses the impact of severe drought on the growth and development of winter wheat plants. The studies were carried out in 2018-2020. As a starting material, we used 57 samples of winter soft wheat bred by ARC “Donskoy”. The studies were carried out under laboratory and vegetation methods. According to the analysis, it was revealed that the highest values of the index of complex resistance were shown by the samples: intensive type - 1630/17 (282.8 rel.units), 2078/16 (265.1 rel.units), 1990/17 (265, 0 rel.units); semi-intensive type -1727/17 (260.6 rel. units), 2243/17 (258.6 rel. units), 522/16 (252.8 rel. units). The maximum value of the degree of drought resistance of samples of the intensive type was noted for lines 2243/17 (92.4%), 1727/17 (84.9%), and 522/16 (82.6%). Among 36 samples of winter soft wheat of intensive type, high drought resistance was noted in 67% (24 samples) with germination from 71.6 (Univer) to 92.9% (1630/17). High values of heat resistance (I-81-100% of germination) out of 57 studied samples of winter wheat were noted in 56 genotypes, the indicators of which ranged from 85.1% (1181/16) to 98% (Zodiac, 1166/15, 1275/16). The highest grain yield under model drought conditions was noted for winter wheat varieties Zodiac (332.86 g/m2), Premiera (332.48 g/m2) and Podarok Krymu (317.50 g/m2), which is higher than the yield of the Ascet classifier (292.97 g/m2) by 8.0-13.7%..

Author(s):  
A. Golodna ◽  
◽  
L. Holyk ◽  
◽  

Winter soft wheat is one of the most important crops. New varieties of wheat should be characterized by a set of valuable economic characteristics, but the most relevant is the creation of varieties with high yields and grain quality, resistant to a complex of diseases and other negative factors. The aim of the study was to evaluate new promising varieties of winter soft wheat breeding of the NSC "Institute of Agriculture NAAS" for grain yield, winter hardiness, disease resistance and grain quality. Experimental studies were conducted at the NSC "Institute of Agriculture NAAS" in 2016-2020, research fields are located in the Fastiv district of Kyiv region. Different weather conditions over the years of research have contributed to a better and more comprehensive assessment of varieties on a set of valuable economic characteristics. During field experiments, the generally accepted technology of growing winter wheat was used. The area of the competitive variety testing site was 20.0 m2, repeated four times. Field, measuring and weighing, laboratory and mathematical and statistical methods were used during the research. In 2018, new varieties of soft winter wheat Krasunia Poliska, Mokosha, Pyriatynka, Fortetsia Poliska, Efektna and in 2020 the variety Zemlerob were transferred to the Ukrainian Institute of Plant Variety Examination for qualification examination. Varieties created in NSC "Institute of Agriculture NAAS" by the method of hybridization using as parent components varieties and lines of local and foreign breeding. The variety Krasunia Poliska, belongs to the Lutescens type, is characterized by high drought resistance, resistance to lodging, germination on stumps, grain shedding. The Mokosha variety, belongs to the Lutescens type, has high drought resistance, is resistant to lodging, germination on stumps and grain shedding. Variety Pyriatynka, belongs to the Lutescens type, has high drought resistance, resistance to lodging, germination on the stump, shedding. Fortetsia Poliska, belongs to the Alborbrum type, is characterized by high drought resistance, resistance to lodging, germination on the stump and shedding of grain. Variety Efektna, belongs to the Erythrospermum type, is short (plant height 64-80 cm), characterized by high drought resistance, resistance to lodging, germination on the stump, shedding. The variety of winter soft wheat Zemlerob, belongs to the Lutescens type, has high drought resistance, resistant to lodging, germination on the stump, shedding of grain. The highest grain yield on average over the years of testing was obtained in the variety Fortetsia Poliska - 7.31 t / ha, varieties Pyriyatynka and Zemlerob with indicators of 7.10 and 7.06 t / ha, respectively, were distinguished by high yields. The yields of Mokosha, Effektna and Krasunia Poliska ranged from 6.27 to 6.95 t / ha. According to the increased winter hardiness, the best varieties are Pyriatynka, Krasunia Poliska, Mokosha and Efektna with a score of 8.0-8.2 points. In the varieties Fortetsia Poliska and Zemlerob the score for winter hardiness was 7.8-7.9 points. Estimation of powdery mildew showed that the maximum percentage of lesions on average over the years of research was found in the variety Mokosha (25.5%). As the most stable selected varieties Efektna, Lisova pisnia, Pyriatynka and Fortetsia Poliska (1.7-11.6%). In terms of resistance to brown rust, all varieties showed high resistance, the damage did not exceed 8.0%. The most stable variety was Efektna (0.3%). The greatest damage to winter wheat varieties was found in leaf septoria, which ranged from 19.0 to 39.3%. The greatest resistance to this disease is determined in the cultivar Zemlerob. New wheat varieties should also be characterized by high levels of protein, gluten and other valuable traits that ensure grain quality. The highest protein content was determined in the grains of the varieties Efektna (11.67%), Mokosha (11.62%) and Krasuni Poliska (11.54%). According to the increased content of gluten, the varieties Krasunia Poliska, Lisova pisnia, Mokosha (19.22-19.66%) were distinguished. According to the highest indicators of sedimentation, the varieties Krasunia Poliska, Pyriatynka and Mokosha (34.50-34.84 %) should be noted, these varieties are also the best in terms of a comprehensive assessment of grain quality. New varieties of soft winter wheat Krasunia Poliska, Mokosha, Pyryatynka, Fortetsia Poliska, Efektna and Zemlerob breedibg of NSC "Institute of Agriculture NAAS" are characterized by high grain yield (up to 7.31 t / ha), increased winter hardiness and disease resistance, as well as good indicators of grain quality: protein content - up to 11.67%; gluten - up to 19.66%. The introduction of these varieties into production will allow to obtain high yields of quality grain.


Author(s):  
Ishonkulova Gavkhar Norkulovna

This article describes the differences of winter wheat "Selyanka", "Jayhun", "Krasnadarskaya-99" and "Turkiston" in the conditions of ancient irrigated, grazing light gray and barren soils of Kashkadarya region. the Turkestan variety was observed on May 14, May 22, June 8, respectively, while the phase was observed on May 21 and the full ripening phase on June 7; Krasnadarskaya-99 variety matured on May 16, May 24, June 10 and Jayhun variety on May 18, May 26, June 12, or the Turkestan variety growing season was 1 day, Krasnadarskaya-99 variety ripened for 3 days and Jayhun variety ripened 5 days later than Selekta. Turkestan and Krasnadarskaya-99 varieties of winter wheat and Selyanka and Jayhun varieties of winter wheat in the conditions of high irrigated soils, when the harvest period reaches the stage of full ripening on June 5-7 in the conditions of light gray soils grazing in order to obtain high and quality harvests of winter wheat. June 7-12 to reap the full maturity stage, when the impact of information. KEYWORDS – previously irrigated, grazing light gray soil, barren soil, winter wheat varieties “Selyanka”, “Jayhun”, “Krasnadarskaya-99” and “Turkiston”, harvest dates, grain harvest of winter wheat.


2021 ◽  
Vol 2(26) ◽  
pp. 109-115
Author(s):  
S.V. Kosenko ◽  

Penza region is characterized by a diversity of natural and climatic zones and considerable variability of meteorological factors over the years. Therefore, the creation of high-yielding winter soft wheat varieties with high protein content in grain is one of the most significant challenges in this crop breeding. The purposes of this research are twofold: assess the ability of winter wheat varieties to form high-protein grain in various environmental conditions and isolate a valuable source material for breeding. The research objective is to evaluate winter wheat varieties by such indicator as “mass fraction of protein in grain”. The research was carried out from 2008 to 2017 in a forest-steppe zone of the Penza region. The soils of the experimental field – medium-humus medium-thick leached chernozem with the 35–40 cm depth of the plowing horizon. Ninety varieties of winter wheat from the world collection were the material for the research. The forecrop is black fallow. Square of experimental fields is 3 m2, triple replication. Seeding rate – 5.5 million germinating grains/ha. Standard – winter soft wheat variety ‘Fotinya’. Mass fraction of protein in grain in early ripening and mid-early varieties of winter wheat significantly differed from those of the mid-maturing group. Winter wheat varieties from the mid-ripening group were distinguished by a high protein content (on average 15.5 %), high yield (on average 3.8 t/ha), high yield of protein per hectare (on average 0.59 t/ha). According to the level of stress resistance, varieties ‘Fotinya’ and ‘Moskovskaya 39’ stood out (0.7 and 0.6, respectively). The following varieties are characterized by high genetic flexibility (15.3–16.2): ‘Fotinya’ (Penza region), ‘Moskovskaya 39’ (Moscow region), ‘Bezenchukskaya 380’ (Samara region), ‘Badulinka’ (Volgograd region), ‘Ershovskaya 25’ (Saratov region), ‘Zimorodok’, ‘Pobeda 50’ (Krasnodar Territory), ‘Zernogradka 8’, ‘Konkurent’ (Rostov Region). All the aforementioned varieties have less variability of a characteristic over the years (coefficient of variation – 3.2–9.7 %) and are recommended for use as a starting material for creating new forms.


2020 ◽  
pp. 33-36 ◽  
Author(s):  
O. V. Skripka ◽  
S. V. Podgorny ◽  
A. P. Samofalov ◽  
O. A. Nekrasova ◽  
S. N. Gromova ◽  
...  

To successfully increase grain production and improve its quality, the development and introduction of new winter wheat varieties is of great importance. The winter soft wheat varieties developed by the FSBSI “Agricultural Research Center “Donskoy” and included into the State List of Breeding Achievements of the Russian Federation are able to form grain with 30.0% gluten and more, and are suitable for the first, second and third class of baking. A comparative characteristic of the grain quality of winter wheat varieties of the intensive type included in the State List and their ability to form food grain suitable for baking is currently of practical interest. There have been studied 6 varieties in the conditions of drought in 2013 and 2014 (the amount of precipitation during the growing season was 190.0–191.5 mm, the average daily air temperature was 20.3–20.9 °C), and in the conditions of excess moisture in 2016, 2017 (the amount of precipitation was 274.2–292.8 mm, the average daily air temperature was 19.5–20.4 °C). The studied varieties formed the highest productivity from 8.70 to 9.01 t/ha under conditions of excessive moisture. Under drought conditions, productivity of the varieties decreased significantly and ranged from 6.50 to 7.69 t/ha. Better grain quality of the studied varieties was formed in the conditions of the drought of 2013, 2014 with 14.9 to 15.9% of protein and 27.9 to 31.0% of gluten. Food grain close to the first class (from 30.0 to 31.0% of gluten) were formed by the varieties “Aksiniya”, “Tanais” and “Nakhodka”; the second class (more than 28.0% of gluten) was obtained from the varieties “Shef” and “Etuyd”. The ranking method according to grain quality indicators allowed establishing an average rank and identifying the varieties “Aksiniya”, “Tanais”, “Nakhodka” and “Shef” with the best baking traits.


Author(s):  
N. A. Galushko ◽  
N. M. Komarov ◽  
N. I. Sokolenko

The article shows the research on grain quality which was conducted at North- Caucasus Scientific Agricultural Center 2015-2017. The research explored the grain quality of new soft winter wheat varieties. The grain belongs to own selections of soft winter wheat, particularly to Sekletiya, Zernetko 1, Tsaritsa and Liniya 1517. The authors focus on indicating the impact of certain factors on high-quality grain. Batko variety was applied as a standard. The soil of the experimental plot was black soil; the climate was moderate continental. The forecrop was pure steam. Before sowing, the authors applied complex mineral fertilizers dosed N40P60K40; in spring the researchers fertilized them with ammonium nitrate dosed26 kgof ammonium nitrate per hectare. The authors observed positive correlation between nature and flour strength qualities of grain (0,7-0,8); inverse relationship between the value of natural mass and IIR values (-0,79); dough elasticity to dough extensibility (-0,88); and baking absorption parameter (-0,85). Flour strength depends on protein quantity and quality (r = 0.79). The wheat varieties have shown different values of flour strength: Liniya 1517 and Zernetko 1 correspond to good filler (282-294 a.), Sekletiya, Tsaritsa and Batko (standard) correspond to satisfactory improver (312, 332,345 a.). Tsaritsa variety formed gluten of the first group during three years under different temperatures. This indicates the prevalence of protein glutenin fraction and capacity of strong wheat improver. The authors found out high correlation coefficient of sedimentation with the amount of gluten (r = 0.81) was found. The quality of winter wheat grain was affected by the arid conditions of grain loading in 2015 and overwetting in 2017. This prevented the varieties from showing up their capacities.


2020 ◽  
pp. 1-10
Author(s):  
Damilola A. Raiyemo ◽  
William J. Price ◽  
Traci A. Rauch ◽  
Joan M. Campbell ◽  
Fangming Xiao ◽  
...  

Abstract Annual grass weeds reduce profits of wheat farmers in the Pacific Northwest. The very-long-chain fatty acid elongase (VLCFA)-inhibiting herbicides S-metolachlor and dimethenamid-P could expand options for control of annual grasses but are not registered in wheat, because of crop injury. We evaluated a safener, fluxofenim, applied to wheat seed for protection of 19 soft white winter wheat varieties from S-metolachlor, dimethenamid-P, and pyroxasulfone herbicides; investigated the response of six varieties (UI Sparrow, LWW 15-72223, UI Magic CL+, Brundage 96, UI Castle CL+, and UI Palouse CL+) to incremental doses of fluxofenim; established the fluxofenim dose required to optimally protect the varieties from VLCFA-inhibiting herbicides; and assessed the impact of fluxofenim dose on glutathione S-transferase (GST) activity in three wheat varieties (UI Sparrow, Brundage 96, and UI Castle CL+). Fluxofenim increased the biomass of four varieties treated with S-metolachlor or dimethenamid-P herbicides and one variety treated with pyroxasulfone. Three varieties showed tolerance to the herbicides regardless of the fluxofenim treatment. Estimated fluxofenim doses resulting in 10% biomass reduction of wheat ranged from 0.55 to 1.23 g ai kg−1 seed. Fluxofenim doses resulting in 90% increased biomass after treatment with S-metolachlor, dimethenamid-P, and pyroxasulfone ranged from 0.07 to 0.55, 0.09 to 0.73, and 0.30 to 1.03 g ai kg−1 seed, respectively. Fluxofenim at 0.36 g ai kg−1 seed increased GST activity in UI Castle CL+, UI Sparrow, and Brundage 96 by 58%, 30%, and 38%, respectively. These results suggest fluxofenim would not damage wheat seedlings up to three times the rate labeled for sorghum, and fluxofenim protects soft white winter wheat varieties from S-metolachlor, dimethenamid-P, or pyroxasulfone injury at the herbicide rates evaluated.


Author(s):  
А. I. Pryanishnikov ◽  
I. V. Savchenko ◽  
V. N. Mazurov

The Questions of study "genotype-environmental” interaction are occupy a central place in the development of the theory of Adaptive selection, because such relationship varied and complex as the nature and degree of the manifestation. The selection of the same promising accessions in the realization of their productive properties aimed at the selection of genotypes, for whom the impact of this interaction is minimal. For example, the creation of winter wheat varieties CASAR and Kalach 60 proved that the screening efficiency is dictated by choosing selective background and combination of natural condition, contributing to the assessment of "genotype-environmental” components along the environmental vector created the system of multilokacionnyh tests. Cluster analysis of the 30 varieties of winter wheat yield allowed to group them by the nature of the productive properties realization and to distinguish two groups with high indicators. Kalach 60 with an average yield of 10516.05 pounds per hectare was integrated into the Pearl of the Volga region group. KASAR, with the yield of 9854,66 pounds per hectare, formed its own cluster group, which included selection lines L 52-98, as well as L 40-01 and L 41-01. Significant differences of the varieties were in variability of productive properties, depending on the emerging conditions. The first cluster group varieties are characterized by the more restrained variation in yield than KASAR. A detailed analysis was revealed that the latter varieties significantly reduced the indices in more severe growing conditions, exceeding the first in the years favorable for the moistening regime. In light of this decision on biometric methods used to identify differences on the fenotipicheskom level, the task falls to dissect a quantitative manifestation of biological concepts and increase its informative about the nature adaptation of new varieties on the multidimensionality of the factor. The article gives a detailed description of new winter wheat varieties according to the results of the studies.


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