scholarly journals Ecological trial of the winter wheat varieties of the ARC “Donskoy” in the area of dark chestnut soils of the Volgograd region

2021 ◽  
pp. 88-94
Author(s):  
V. L. Sapunkov ◽  
A. V. Solonkin ◽  
A. V. Guzenko

The current paper has presented the trial results of the winter wheat varieties developed by the ARC “Donskoy” in 2018 -2020. Currently, the farmers have bred a lot of different wheat varieties, but they are not able to take into account all the peculiarities of their cultivation. The purpose of the current work was to study the features of the autumn and spring-summer vegetation periods of the winter wheat varieties developed by the ARC “Donskoy” in the area of dark chestnut soils of the Volgograd region. There have been selected 10 winter wheat varieties for the trials. The field trial was laid down on dark chestnut soils of the lands of the Serafimovichsky district in the Volgograd region. The study was carried out according to the generally accepted B.A. Dospekhov’s methodology. The field trials showed that the germination of winter wheat was influenced by a seeding depth, which was 7-9 cm. The best germination was found among the varieties ‘Asket’, ‘Etyud’, ‘Lilit’, ‘Donskaya Step’ and ‘Zhavoronok’. During the trials, the formation of a productive stand was greatly influenced by the weather (the length of a spring tillering period, precipitation in May), as well as the traits of the variety. The winter wheat varieties ‘Etyud’, ‘Shef’, ‘Donskaya Step’, ‘Krasa Dona’ were able to form a large number of productive stems under favorable weather conditions. Under insufficient moisture supply, the largest number of productive stems was formed by the varieties ‘Lidiya’ and ‘Lilit’. The highest tillering intensity during an autumn vegetation period was shown by the variety ‘Lidiya’ (4.7–6.2 shoots), including the varieties ‘Zhavoronok’ (4.2–5.4 shoots) and ‘Etyud’ (4.0–5.3 shoots). The largest productivity was produced by the varieties ‘Donskaya Step’ (4.97 t/ha), ‘Zhavoronok’ (4.95 t/ha), ‘Krasa Dona’ (4.90 t/ha) over three years.

2021 ◽  
pp. 95-103
Author(s):  
L. A. Radchenko ◽  
Т. L. Ganotskaya ◽  
А. F. Radchenko ◽  
S. S. Babanina

The analysis of the Crimean weather conditions during the autumn vegetation period of winter wheat indicates climate warming and, in this regard, the necessity to adjust the optimal sowing dates. The purpose of the current study was to estimate the productivity and grain quality of winter bread wheat varieties depending on different sowing dates. The objects of the study were five winter wheat varieties sown in 5 dates from October 1 to November 30 with an interval of 15 days. Field trials were conducted with appropriate observations, records, measurements and analyzes, according to the methodology of the State Variety Testing. Statistical processing of the trials was carried out by the B.A. Dospekhov’s method of dispersion and correlation analyzes. The study was carried out through three years, two vegetation periods of which (2017–2018 and 2019–2020) were dry, one period (2018-2019) was favorable for the development of winter grain crops. According to the results of the analysis of variance, there have been identified significant differences in the effect of all three factors (‘variety’, ‘length’ and ‘year’) and their correlation in all combinations on the productivity formation. The factors ‘sowing date’ (33%) and ‘correlation between date and year’ (49%) had the greatest influence on the productivity formation. In 2018, the most optimal for all studied varieties was the second sowing date (15.10), in 2019 it was the first (1.10), and under the conditions of 2020, the later sowing dates were more favorable, and the 4th period was marked as optimal (15.11). The mean productivity of all varieties at the optimum sowing dates was 4.0; 5.5 and 3.46 t/ha, respectively. The factors ‘sowing date’, ‘year’, and the correlation between them significantly influenced protein percentage in grain. Their effect on the manifestation of the above trait was 29%, 14% and 23%, respectively; on gluten content it was 29%, 16% and 21%, respectively.


1968 ◽  
Vol 40 (2) ◽  
pp. 88-95
Author(s):  
H. H. Blomqvist ◽  
E. A. Jamalainen

The present work describes a method for the testing of the resistance of winter cereal varieties to Fusarium nivale, Typhula ishikariensis and T. incarnata. The shooting of the plants was carried out in greenhouses and after a period of 3 weeks of coldhardening the plants were infected, covered with cellulose wadding and placed in a temperature of 2°C. Once the varieties with the highest susceptibility were severely infected by the fungi the test was suspended and the plants were given some 2 weeks to recover prior to being analysed. The tested varieties were well known from field trials during a number of years. The results agree in the main with those obtained in the field. The Finnish winter wheat and winter rye varieties showed a greater degree of resistance to the above fungi than the Swedish ones. The injury inflicted by F. nivale on winter rye was more severe than that on the winter wheat varieties. T. ishikariensis and T. incarnata were considerably more pathogenic to wheat than F. nivale, and the tested varieties showed varying degrees of resistance to these fungi. The results likewise point to a correlation existing in the resistance to the three low temperature parasitic fungi.


2021 ◽  
Vol 12 (2) ◽  
pp. 29-36
Author(s):  
R.I. Topko ◽  
◽  
G.V. Vologdina ◽  
A.V. Gumenyk ◽  
H.M. Kovalyshyna ◽  
...  

The introduction of modern methods for field assessment of winter wheat genotypes is an integral part of improving the quality of the breeding process. The creation, adaptation and use of innovative screening technologies in breeding is becoming increasingly popular and allows the breeder to more widely and objectively evaluate the original forms and newly created material. Important for winter is the autumn period, when under favorable weather conditions (gradual decrease in temperature) there is a slowdown in the growth rate of winter wheat, changing physiological and biochemical processes in the plant, which contribute to its transition to hibernation. The state of winter wheat crops (morpho-biometric indicators of plants) in the autumn is largely decisive in the formation of a sufficient level of winter hardiness, and thus affects the further productivity of the crop. According to the results of analysis of morpho-biological and spectral analysis data, it was established that before overwintering the best condition for the first sowing period was winter wheat plants: MIP Lada (NDVI = 0.48), erythrospermum line 55023 (NDVI = 0.46), Lutesens 60049 (NDVI = 0.46), varieties MIP Distinction (NDVI = 0.46) MIP Jubilee (NDVI = 0.46), MIP Dnipryanka (NDVI = 0.46) and line Lutesens 55198 (MIP Gift) (NDVI = 0, 47). In the standard variety Podolyanka, the index value was at the level of 0.45. During the second sowing period, the following varieties were identified: MIP Assol (NDVI = 0.32), Ballad Myronivska (NDVI = 0.32), Erythrospermum 55023 (NDVI = 0.33), MIP Lada (NDVI = 0.33), MIP Jubilejna ( NDVI = 0.32) and Lutesens 55198 (MIP Gift) (NDVI = 0.32) and Lutesens 60107 (NDVI = 0.32). NDVI index of Podolyanka variety was at the level of 0.32.


Author(s):  
O.M. Bakumenko ◽  
V.A. Vlasenko ◽  
O.M. Osmachko ◽  
Fanhua Meng ◽  
Qian Zhou

Experimental researches had been carried out during 2012–2016 in the crop rotation of Sumy National Agrarian University (SNAU) of the Ministry of Education and Science of Ukraine. Soils on the experimental field of SNAU – black soil typical deep, non-humusful medium-loam with high and medium provision with elements of mineral nutrition. The humus content about 3.9 %. The reaction of the soil solution is close to neutral (5.8). The analysis of the weather conditions of 2012–2016 researches was conducted on the basis of annual data provided by the meteorological station of the Institute of Agriculture of the North-East of the NAAS, located five kilometers from the experimental field of SNAU. The SNAU soils are classified in the second agro-climatic region of the Sumy region, which according to a long-term data is characterized by temperate continental climate with warm summers and not very cold winters with thaws. Average daily (average annual) air temperature during 2012–2016 fluctuated from +7.9 to +9.5 ºС, and the legth of the frost-free period was close to 230 days. Long-term indicator, precipitation falls within 597–600 mm, with most of it – in the warm period (April-October). In general, the weather conditions during the winter wheat vegetation periods differed from the average annual parameters of the temperature regime, the amount of precipitation and their monthly distribution. It should be noted the excess of temperature to the average long-term index, as well as a slight precipitation increasing. In general, it facilitated to a comprehensive evaluation of the studied Chinese varieties as for an adaptive ability under condition of Ukraine. The samples of Chinese winter wheat varieties which originated from the expeditionary gatherings conducted by V. A. Vlasenko in Gansu and Hebei provinces in (2000–2012) were the material for conducting researches. The cultivar Podolianka (the standard) was used in the study for comparison. The research was carried out using field, laboratory and mathematical-statistical methods. Phenological observations and records, evaluation and harvesting were conducted in accordance with generally accepted methods. The results of research as for adaptive potential of Chinese bread winter wheat varieties are presented. 50 new cultivars of Chinese origin were analyzed under the conditions of left-bank side of North-East Forest-Steppe of Ukraine: super-early varieties – 10 %; early ripening varieties – 54 %; middle-early varieties – 12 %; mid-ripening varieties – 24 %. As for the level of tolerance for winter conditions, all groups of alien crops were inferior to the standard (cultivar Podolyanka) though they had a great level of index (6.4–7.9 points). In general, Chinese cultivars under the conditions of the research were characterized by relatively satisfactory tolerance for winter conditions; 52 % of analyzed patterns wintered at the level of standard with 8 points. Among them: super-early varieties – 2 %; early ripening varieties – 20 %; middle-early varieties – 8 %; mid-ripening varieties – 22 %. As for the height of the plants we identified – from medium-sized (81‒110 cm) forms to dwarf (30-50 cm). The analyzed genotypes divided into medium-sized forms – 22 %, dwarf forms – 14 % and semidwarf forms – 64 %. There was a direct relation between: a plant height → group of ripeness (r = 0.96) → group of ripeness (r = 0.92) → resistance to overwintering (r = 0.78). Among the analyzed patterns high resistance against a group of diseases had the varieties: middle-early genotypes – Longzhong 10, Zhong mai 19, Shijra zhuang 8; mid-ripening genotypes – Longzhong 1, Longzhong 3, Longzhong 2, Longzhong 4, Longzhong 12, Longzhong 7; early ripening genotypes – DF529, Lankao 906, DF581, СА0175, Zhongmai 9, Shi 4185, Jimai 22, Shixin 733, Shimai 12. As for the crop better than the standard: early ripening varieties –Jimai 19, DF529; middle-early varieties – Shijiazhuang 8, Longzhong 10, Jingdong 8; middle-early varieties – NSA 97-2082, Longzhong 2, Longzhong 4, Longzhong 7, Longzhong 5, Longzhong 8, Longzhong 12, Longzhong 11, Longzhong 3. 16 % of analyzed cultivars distinguished by the totality of researched characteristics – DF529, Shijiazhuang 8, Longzhong 3, Longzhong 10, Longzhong 4, Longzhong 7, Longzhong 12, Longzhong 2.


Author(s):  
S. O. Zaiets

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.


2008 ◽  
Vol 43 (No. 2) ◽  
pp. 44-52 ◽  
Author(s):  
J. Chrpová ◽  
V. Šíp ◽  
E. Matějová ◽  
S. Sýkorová

Resistance of 35 winter wheat varieties to the accumulation of mycotoxins deoxynivalenol (DON) and zearalenone (ZEA) in grain was evaluated in field trials lasting three years (2004, 2005, 2006) after artificial inoculation with <i>Fusarium culmorum</i>. Data on DON and ZEA content were supplemented by symptom scores and determination of % of Fusarium damaged grains and % reductions of thousand grain weight and grain weight per spike due to infection. The conditions of experimental years highly influenced the performance of all characters. The highest production of DON occurred in 2006 at a high temperature and high moisture content during the infection period. Moderate resistance to the accumulation of DON (at the level of Swiss variety Arina) was detected in the varieties Apache, Samanta, Simila and Alana. Another six varieties (Rheia, Banquet, Ludwig, Rapsodia, Dromos and Globus) also showed relatively low average DON content, but a higher fluctuation in experimental years. DON content was positively related to ZEA content and significant correlations were also detected between DON content and the examined disease severity traits. In all years the earlier varieties showed lower DON accumulation than later varieties, but the effects of genotype earliness on the other traits, including ZEA content, were not often significant (not similar under different conditions). The obtained results could help to improve the classification of varieties from these aspects, which is desirable for recommendation on their use in practice and breeding.


2001 ◽  
Vol 37 (No. 2) ◽  
pp. 66-73 ◽  
Author(s):  
M. Váňová ◽  
L. Tvarůžek ◽  
H. Hrabalová

Fifteen winter wheat varieties were tested for their reaction to Fusarium culmorum and F. graminearum in the ear in 1996, 1998 and 1999. To ensure a sufficient level of infection in the field the varieties were artificially inoculated with spores of the two species at a ratio of 1:1. The infection was evaluated using a 10-score scale at three times: first at the milk stage (BBCH 71–75), i.e. about 14 days after inoculation; two further readings were taken at 7-day intervals. The data were used to calculate the average infection for each variety at each reading, and were statistically evaluated. The parameter “area under disease progress curve” (AUDPC) was also calculated. Significant differences between varieties were found in all investigated years. On the average of the 3 years, the variety Ebi showed the lowest infection. Other varieties with significantly low infection were Estica and Atlet. The variety with the highest infection was Bruneta, followed by Samanta, Saskia and Samara. The degree of infection was considerably influenced by weather conditions in the year. A lower infection was observed in 1996 when rainfall in the period from 1st to 20th June was below normal, while rainfalls in 1998 and 1999 were higher in this period. The efficacy of fungicides was assessed in the highly susceptible variety Bruneta. All tested preparations significantly decreased the degree of infection in comparison with the untreated control. In 1998 the efficacy of fungicides was rather low (from 15.51 to 37.55%), while in 1999 it was higher (from 36.74 to 58.20%). In both years the preparation Folicur BT was most efficacious.


2020 ◽  
pp. 124-131
Author(s):  
A. Pirych ◽  
T. Yurchenko ◽  
S. Koliadenko

In recent years there have been significant changes in weather conditions during wheat growth and development. The aim of the study was to establish the relationship between the level of freezing tolerance of bread winter wheat varieties and their morphological features. The study was conducted during 2016–2019 at the V.M. Remeslo Myronivka Institute of Wheat. 19 bread winter wheat varieties bred at Myronivka were studied. Freezing tolerance of plants was determined according to DSTU 4749:2007 which based on freezing wheat plants in chambers at -18 ºC and -20 ºC with pre-hardening in the open field. The high-frost-tolerant wheat variety Myronivska 808 was used as standard of freezing tolerance. Statistical data processing was performed according to Fisher’s test. Morphological condition of plants was estimated in autumn after vegetation dormancy onset and in spring after its restoration according to the F.M. Kuperman method. The research years were characterized by contrasting weather conditions. It was found that the most bread winter wheat varieties bred at Myronivka have high and medium level of freezing tolerance. Over the years of the research, the elongation of apical cone in the standard variety Myronivska 808 varied from 0.01 to 0.42 mm. In the varieties studied, the elongation of apical cone ranged within 0–0.10 mm (2016– 17), 0.35–0.68 (2017–18) and 0.03–0.32 mm (2018–19). According to the assessment of freezing tolerance, there have been identified valuable bread winter wheat varieties with percent of viable plants over the years of the research exceeding standard variety Myronivska 808 or being at the same level. The varieties MIP Kniazhna, Trudivnytsia myronivska, Lehenda Myronivska, Estafeta myronivska, Vezha myronivska, MIP Dniprianka, MIP Assol were high frost tolerant ones. On average, over the years of the research the varieties MIP Kniazhna, Trudivnytsia myronivska, Lehenda Myronivska, Estafeta myronivska, Vezha myronivska, MIP Dniprianka, and MIP Assol had elongation of apical cone at the level of the Myronivska 808 variety. The variation of the strength and direction of connections between the level of frost resistance and morphological indicators (plant height, length of the growth cone) determined at the time of termination and restoration of winter wheat vegetation was established. Key words: winter wheat, varieties, freezing tolerance, growth, development, apical cone.


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