Evaluation of collection flax accessions for resistance to fusarium wilt and anthracnose in the North-East of Ukraine

Author(s):  
O.Yu. Yotka ◽  
V.I. Chuchvaha ◽  
L.M. Kryvosheieva

Goal. To evaluate collection flax accessions of the Institute of Bast Crops for resistance to Fusarium wilt and anthracnose in the North-east Ukraine, to identify, on the basis of screening, varieties with medium and high resistance to pathogens and to create new initial breeding material on artificial infections. Materials and methods. The study was carried out in the infectious-provocative nursery in the field of the Institute of Bast Crops in compliance with the "Methodical guidelines for the phytopathological evaluation of resistance of breeding material of fiber flax to Fusarium wilt" and " Methodological instructions on the phytopathological evaluation of resistance of fiber flax to diseases" in 2011 ­ 2016. Results and discussion. In 2011-2016, 115 accessions of the Ukrainian national flax collection from 15 countries were evaluated for resistance to Fusarium wilt and anthracnose in the infectious nursery: 31 accessions from Ukraine; 26 – from Belarus; 15 - from France; 8 - from Russia; 8 - from Poland; 6 - from the USA; 4 - from Lithuania; 4 - from the Czech Republic; 4 – from Argentina; 3 - from the Netherlands; 1 accession from Belgium; 1 - from Germany; 1 - from Kenya; 1 - from Morocco; 1 from Canada; and 1 accession of unknown origin. Varieties were assessed for resistance to disease in comparison with reference varieties. There were 8 Fusarium-resistant and 3 Colletotrichum-resistant accessions. Most of the varieties under investigation were medium resistant to Fusarium wilt (59.1%) and susceptible to anthracnose (82.6 %). Conclusions. As a result of the research into resistance of the collection material to Fusarium wilt and anthracnose in the infectious nursery, sources of resistance to diseases were identified: ACM Duff (UF0402149) from Canada, Atena (UF0401927) from Poland, LKS 2 (UF0402112), LKS 10 (UF0402101), LKS 11 (UF0402102), LKS 12 (UF0402196), LKS 14 (UF0402194), LKS 15 (UF0402198) from Ukraine - to Fusarium wilt; LKS 1 (UF0402111), LKS 11 (UF0402102) from Ukraine, Fort (UF0401942) from the Republic of Belarus - to anthracnose. Ukrainian fiber flax accessions combining resistance to two diseases: LKS 11 (resistance to Fusarium wilt and anthracnose), LKS 2, LKS 10, LKS 12, LKS 14, and LKS 15 (resistance to Fusarium wilt and medium resistance to anthracnose), LKS 1 (medium resistance to Fusarim wilt and resistance to anthracnose) were singled out.

Author(s):  
V. Fedorov ◽  
E. Sleptsov ◽  
K. Plemyashov

A growth in the number of deer and an increase in their productivity are closely related to the solution of the complex problem of reproduction and rational use of deer females. Significant damage to reindeer husbandry is caused by the barrenness of northern domestic deer, the level of which has been quite high in recent years. So, in the Republic of Sakha, on 01.01.2020, the number of domesticated reindeer was 152,068, of which female deer and heifers — 71,818, offspring per 100 females — 59, business yield amounted to 52 fawns per 100 females. The causes of infertility are very diverse, as the natural and climatic conditions of the breeding zones have a significant influence on the reproductive function of reindeer. In Yakutia, the main population of northern domestic deer is bred in mountain taiga and tundra natural-climatic zones, so there are about 55 thousand deer in the mountain taiga zone and more than 65 thousand deer in the tundra zone. In this regard, the study of the peculiarities of the postpartum period course in domestic reindeer females, its morphophysiology, and behavioral reactions depending on the natural and climatic conditions of breeding is of great importance.


Author(s):  
V. Fedorov ◽  
T. Ippolitova ◽  
E. Sleptsov ◽  
K. Plemyashov

Purpose: Determination of the peculiarities of the behavior and the flow of childbirth in females (wrenches) of the northern home deer of the Even Breed of the Republic of Sakha (Yakutia), depending on the natural climatic zone of breeding.Material and research methods. Research of the reservation of the hotel's reservoir of the northern home deer was held from April to June in the reindeer herds of the mountain-taiga (FSUE «Yuchjuyuskoye») and the Tundrov zones (SHPZK «Taba-Yana») of the Republic of Sakha (Yakutia) in the conditions of nomadic home reindeer herding since 2013 2018 In the study, the method of observation is used with the registration of motor activity of animals and the activities of individual bodies in a certain living environment.Results. To fix some patterns and species features of the generic process, 8 main elementary behavioral reactions spent venizables of northern domestic deer per day before childbirth: walking, feeding feed, chewing, leisure standing, rest lying, sleep, urination (how many times / total time), defecation (how many times / total time). Also marked 4 behavioral reactions on the hotel day: the exploitation time of the fetus, the licking of the calf, the time of the calf on his feet after delivery, the first reception of the mosper calf after birth. For each parameter, data reflected in tabular format is obtained.Conclusion. It has been established that the degree of adaptation of the northern domestic deer to the harsh conditions of existence in various natural-climatic zones of the Republic of Sakha (Yakutia) is very high, which is manifested in a minor difference in the duration of the generic process and behavioral reactions at the vainer of the mountain and tundra and tundra dilution zones.


2009 ◽  
Vol 6 (2) ◽  
pp. 36-38 ◽  
Author(s):  
Zahid Latif

Ireland is the third largest island in Europe and the twentieth largest island in the world, with an area of 86 576 km2; it has a total population of slightly under 6 million. It lies to the north-west of continental Europe and to the west of Great Britain. The Republic of Ireland covers five-sixths of the island; Northern Ireland, which is part of the United Kingdom, is in the north-east. Twenty-six of the 32 counties are in the Republic of Ireland, which has a population of 4.2 million, and its capital is Dublin. The other six counties are in Northern Ireland, which has a population of 1.75 million, and its capital is Belfast. In 1973 both parts of Ireland joined the European Economic Community. This article looks at psychiatry in the Republic of Ireland.


2019 ◽  
Vol 7 (3) ◽  
pp. 22-39
Author(s):  
Vitaly N. Naydenko

The article examines the problems of open and latent ethnonational tension in Russian society, which in the conditions of aggravation of the social situation, may lead to the use of spontaneous methods of solving ethnonational conflicts, including those of a violent nature. A survey of 20 experts, who are qualified specialists in the sphere of ethno-extremism counteraction and ethno-national conflict localization, conducted by the author of the article, has shown that the majority of them have assessed both the current and forecasted situation in the sphere of ethnonational relations as “tense” for the next five to seven years. In their opinion, “ethnonational tension” is conditioned by a number of long-term factors that will influence the content and dynamics of ethnonational conflict in the Russian Federation: the desire of the USA for global dominance and the confrontational policy of NATO member states towards Russia; the antiRussian policy of the Ukrainian leadership, which is attempting to accuse Russia of “unleashing and waging a hybrid war against Ukraine” and actively pushing Western countries to strengthen confrontation with the Russian Federation; attempts by some states to bring territorial claims against Russia; intensification of the fight against embezzlement of budgetary funds, systemic corruption and ethno-extremist manifestations in the North Caucasus region; the ethnopolitical situation in the Republic of Crimea, characterized by manifestations of Ukrainian nationalism and militant Islamism. According to expert estimates, the highest degree of ethnonational tension is currently maintained in the Republic of Dagestan, the Republic of Ingushetia, the Kabardino-Balkarian Republic, the Karachayevo-Circassian Republic, the Republic of Crimea, the Republic of Bashkortostan and the Republic of Tatarstan. The results of research in the article testify to the necessity of constant study of the problem of ethnonational conflicts, research into the factors influencing the maintenance and dynamics of conflict potential, definition of Russian regions with an increased level of tension, development of recommendations to authorities on prevention and localization of ethnonational conflicts.


2020 ◽  
Vol 10 (4) ◽  
pp. 279-281
Author(s):  
K.K. Akhmetov ◽  
D.G. Maralbaeva ◽  
A.V. Matsyura

The article presents the parasitological studies of Trematoda, collected by complete helminthological dissections of birds in the Pavlodar region of the Republic of Kazakhstan. In Pavlodar region, we have currently diagnosed among the Trematoda, the presence of 16 species belonging to four subgenera and seven families. We supposed that there is a local pest-spot of Prosthogonimidae and Echinistomatidae in the north-east of Kazakhstan, because we have found marites in young migratory birds. We noted that the pest-spot of Echinostomatidae and Echinistomatidae (in years with their registration) in the territory of Pavlodar region was broad enough, because the trematode marites of these families were registered from the birds, sampled at the geographically remote waterbodies. We revealed that the hotspots of Prosthogonimidae localization varied, which was most likely determined by the annual climatic conditions.


2021 ◽  
Vol 181 (4) ◽  
pp. 173-184
Author(s):  
N. V. Mironenko ◽  
E. V. Rogozina ◽  
A. A. Gurina ◽  
A. V. Khiutti ◽  
N. A. Chalaya ◽  
...  

Background. Predominant use of the H1 and Gro1-4 genes of resistance to golden nematode (PGN) in potato breeding requires widening the gene pool of resistance to this pathogen.Materials and methods. Thirty-four genotypes of wild potatoes from North and South Americas, 14 interspecific hybrids, and 10 Russian potato cultivars were studied for PGN resistance. Screening for resistance to PGN pathotype Ro1 and molecular screening for the presence of H1 and Gro1-4 gene markers were performed. Amplification products of the Gro1-4 gene marker were sequenced.Results. Only seven among the studied 34 potato genotypes (two of S. brachystotrichum (Bitt.) Rydb., four of S. lesteri Hawkes et Hjerting, and one of S. kurtzianum Bitt. et Wittm.) were susceptible to PGN, while the rest demonstrated high or medium resistance. Molecular screening for the presence of H1 and Gro1-4 gene markers allowed us to identify Gro1-4 in 13 South American genotypes of S. alandiae Cárd., S. × doddsii Corr., S. kurtzianum, S. leptophyes Bitt., and S. yungasense Hawkes. The remaining 14 genotypes may supposedly contain resistance genes non-identical to H1 or Gro1-4. Hybrids of S. tuberosum L. with medium-resistant wild accessions of S. kurtzianum, S. leptophyes, S. sparsipilum (Bitt.) Juz. et Buk., S. alandiae, and S. × doddsii inherited PGN resistance determined either by the Gro1-4 gene or genes non-identical to H1 or Gro1-4. Sequencing a fragment of the Gro1-4 gene showed that changes in the structure of this fragment in orthologous genes did not affect the feature of resistance to PGN pathotype Ro1.Conclusion. For the first time, sources of resistance to PGN were found among the North American species S. brachystotrichum (k-23201) and S. lesteri (k-24475). Among the wild South American Solanum spp., sources of resistance determined by genes different from H1 or Gro1-4 were identified. Resistant interspecific hybrids can serve as donors of the Gro1-4 resistance gene or new resistance genes. 


Author(s):  
N. S. Volotkovskaya ◽  
A. S. Semenov ◽  
Y. V. Bebikhov ◽  
V. A. Shevchuk ◽  
O. V. Fedorov

THE PURPOSE. To analyze scenarios for the development of the energy complex of one of the regions of the North-East of Russia for the period up to 2030 with a target vision until 2050. This will require an analysis of the current state of the energy complex; show the latest changes in the power supply system; propose promising areas for the transfer of electricity. METHODS. To assess the current state of the electric power industry, from the point of view of the most efficient use of natural energy resources and the potential of the energy sector of the economy, methods of collecting and processing statistical data were applied. For the technical assessment of the state of electric power facilities, analytical and logical- probabilistic methods for determining reliability were applied. To predict energy consumption, mathematical modeling methods were used with the construction of approximating polynomials. RESULTS. The article evaluates the strategic and moderate scenarios for the development of the energy sector of the Republic of Sakha (Yakutia) in modern conditions, taking into account the increase in the energy efficiency of the region's economy. The indicators of electricity consumption throughout the republic, the Western Energy District and the decentralized power supply zone were subject to assessment. Long-term forecasts made do not confirm the development of events according to a more stringent strategic scenario. At the same time, the results for the moderate scenario are fully correlated with both the current state of the energy sector and the prospects for its development. CONCLUSION. Analysis of the current state and assessment of scenarios for the development of the energy sector of the republic's economy showed an increase in the reliability of power supply systems when organizing a "ring" in the Western Energy District; increase in useful electricity consumption by 2030; increase in electricity production; changes in the structure of electricity production.


2017 ◽  
Vol 2 (2) ◽  
pp. 159
Author(s):  
Suspense Averti IFO ◽  
Félix Koubouana ◽  
Stoffenne Binsangou ◽  
Ampali Parfait ◽  
Batsa Marcelle

<p><em>The amount of carbon stock under different land type’s cover </em><em>was studied in </em><em>the north east of Republic of Congo. </em><em>Samples of soil from the surface 0-15 cm horizon were collected under 12 land types classes. Results showed that the lowest soil C was noted in flooded primary forests of Lophira alata Banks ex Gaertu. </em><em>W</em><em>ith an amount of 17.21 t C ha<sup>-1</sup>, and the highest values were noted in the savanna of Jardinea congoensis with an amount of 117.6 t C ha<sup>-1</sup> and the primary forest of Guibourtia demeusei (Harms) Léon. With 116.16 t C ha<sup>-1</sup></em><em> </em><em>(p </em><em>&lt; 0.05).</em><em></em></p><em>Our study revealed the importance of carbon stock in different type of land in tropical area to reduce the emission of CO<sub>2</sub> from the conversion of forestland to another type of land.</em>


1998 ◽  
Vol 78 (4) ◽  
pp. 1385-1388 ◽  
Author(s):  
Afonso Marques

The diet of Synaphobranchus kaupi from the Porcupine Seabight is described. A sample of 110 eel stomachs containing food, were analysed and the general size–depth trend among eels with food in their stomachs. Larger individuals are found in deeper waters. Fish are the main prey for larger eels and crustaceans are preferred by smaller individuals.Synaphobranchus kaupi Johnson, 1862 is a slope dwelling eel, abundant in the north-east Atlantic Ocean from 230 to 2420 m deep on the continental slope (Haedrich & Merrett, 1988). It is the most abundant species on the slopes of the Porcupine Seabight, off south-west Ireland (Merrett et al, 1991; Priede et al., 1994) and was classified as a benthopelagic predator of the fourth level, predator of predators (Saldanha, 1991).The diet of S. kaupi has been described from the slope off the middle Atlantic coast of the USA (Sedberry & Musick, 1978), from the Portuguese slope and in the Bay of Biscay (Saldanha, 1991), from the west African slope (Merrett & Marshall, 1981; Merrett & Domanski, 1985) and from the Rockall Trough (Gordon & Mauchline, 1996).Our specimens were captured during a joint IOS/SAMS survey (Merret et al., 1991). From a total catch of 8792 S. kaupi, captured between 1979 and 1983 in the Porcupine Seabight, ranging from 470 to 2230 m deep, fish stomachs were removed aboard ship and 110 with food were kept in 5% formalin for further analysis.


Oryx ◽  
2011 ◽  
Vol 46 (1) ◽  
pp. 64-68 ◽  
Author(s):  
Jason D. Tack ◽  
David E. Naugle ◽  
John C. Carlson ◽  
Pat J. Fargey

AbstractMigratory pathways in North American prairies are critical for sustaining endemic biodiversity. Fragmentation and loss of habitat by an encroaching human footprint has extirpated and severely truncated formerly large movements by prairie wildlife populations. Greater sage-grouseCentrocercus urophasianus, a Near Threatened landscape species requiring vast tracts of intact sagebrushArtemisiaspp., exhibit varied migratory strategies across their range in response to the spatial composition of available habitats. We unexpectedly documented the longest migratory event ever observed in sage-grouse (> 120 km one way) in 2007–2009 while studying demography of a population at the north-east edge of their range. Movements that encompassed 6,687 km2included individuals using distinct spring and summer ranges and then freely intermixing on the winter range in what is probably an obligate, annual event. The fate of greater sage-grouse in Canada is in part dependent on habitat conservation in the USA because this population spans an international border. Expanding agricultural tillage and development of oil and gas fields threaten to sever connectivity for this imperilled population. Science can help delineate high priority conservation areas but the fate of landscapes ultimately depends on international partnerships implementing conservation at scales relevant to prairie wildlife.


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