scholarly journals Influence of Growing Medium on the Parameters and Yield Capacity of the Mini Tuber Potato of the Charoite Variety

2021 ◽  
Author(s):  
Tamara A. Shelabina ◽  
Dmitriy A. Danilov ◽  
Aleksandr I. Rodionenkov ◽  
Aleksey A. Kuznetsov
Keyword(s):  
Viral Infection ◽  
Fungal Diseases ◽  
Quantitative Yield ◽  
Original Seed ◽  
Latent Viral Infection ◽  
Growing Medium ◽  
Growth Development ◽  
Yield Capacity ◽  
The Creation

The creation of original seed grains of the Charoite variety, healed of pathogenic infections of various etiologies, was carried out through reproduction of the certified meristematic material of the microplants class. Mini tubers microplants were grown in 5.5 liter vessels on a “Agrobalt S” soil (control) mixed with peat and supplemented with 10% and 20% (of the volume) of the “ORVI” substrate. The use of the substrate “ORVI” mixed with peat and “Agrobalt S” soil positively influenced the growth, development and formation of tubers. The appliance of 10% of the “ORVI” substrate significantly increased the quantitative yield of mini tubers by 17% and the weight of tubers by 12.3%. The increase in the total number of mini tubers was due to the increase in tuber fraction from 10 to 30 mm. The appliance of a 20% “ORVI” substrate also led to an increase in the total number and mass of mini tubers. According to the EIA results, the mini tubers grown from microplants did not contain any latent viral infection. Tests on the seeds did not reveal symptoms of fungal diseases. Keywords: breed, potatoes, mini tubers, mass of tubers, peat fertilizer, substrate

scholarly journals Gammaherpesvirus infection licenses age-associated B cells for pathogenicity in MS and EAE

2021 ◽  
Author(s):  
Isobel C. Mouat ◽  
Jessica R. Allanach ◽  
Vina Fan ◽  
Anna M. Girard ◽  
Iryna Shanina ◽  
...  
Keyword(s):  
B Cells ◽  
Viral Infection ◽  
Viral Infections ◽  
Autoimmune Encephalomyelitis ◽  
Barr Virus ◽  
Ebv Infection ◽  
Latent Viral Infection ◽  
Epstein Barr ◽  
Gammaherpesvirus 68 ◽  
Experimental Autoimmune

While age-associated B cells (ABCs) are known to expand and persist following viral infection and during autoimmunity, their interactions are yet to be studied together in these contexts. Epstein-Barr virus (EBV) infection has long been implicated in multiple sclerosis (MS), and it is not known whether ABCs could play a role in mediating viral contribution to autoimmunity. Here, we show that the circulating ABC population is expanded in people with MS and that EBV infection and MS status differentially impact the circulating ABC phenotype. We then directly compared ABCs during viral infection and autoimmunity using mouse models of EBV, gammaherpesvirus 68 (γHV68), and MS, experimental autoimmune encephalomyelitis (EAE). We observed that splenic ABCs are expanded in a sex-biased manner during both latent virus infection and EAE, and each event drives the ABC population to opposing phenotypes. We have previously shown that latent γHV68 infection exacerbates EAE and here we show that mice lacking ABCs fail to display γHV68-enhanced disease. Collectively, these findings indicate that latent viral infection and central nervous system autoimmunity differentially impact the ABC population and suggests that viral infections such as EBV prime ABCs to contribute pathogenically in MS.

scholarly journals Breeding and genetic patterns in trait expression and efficiency of creation of spring barley cultivars

2018 ◽  
Vol 23 ◽  
pp. 68-73 ◽  
Author(s):  
M. R. Kozachenko ◽  
N. I. Vasko ◽  
O. H. Naumov ◽  
P. M. Solonechnyi ◽  
O. V. Solonechna ◽  
...  
Keyword(s):  
Grain Quality ◽  
Plant Traits ◽  
Spring Barley ◽  
Breeding Method ◽  
Hordeum Vulgare L ◽  
Barley Cultivars ◽  
State Register ◽  
Genetic Patterns ◽  
Yield Capacity ◽  
The Creation

Aim. Solutions of scientific problems of increasing the efficiency of genetic breeding methods are important objectives in the creation of valuable spring barley cultivars. Methods. Analyses of variance, variation, correlation and regression as well as genetic methods of analyzing features of genotypes in the diallel crossing and top-crossing design were used. Results. The important scientific problems with regard to increasing the efficiency of breeding for yield capacity, brewing quality and starch fraction composition were solved by establishing morphological and biological characteristics, dispersion, correlation, variability, adaptability, breeding and genetic peculiarities of inheritance, heritability, components of genetic variation, combining ability of plant traits as well as the effectiveness of hybridization and mutagenesis methods. As a result of the patterns established, the efficiency of the creation of economically valuable spring barley cultivars was increased. Conclusions. The new solutions of important scientific problems of raising the efficiency of breeding for yield capacity and grain quality were proposed and generalized. On this basis, valuable cultivars were created. As of 2017, 17 of them have been were included in the State Register of Plant Varieties suitable for dissemination inUkraine. Keywords: breeding-genetic patterns, Hordeum vulgare L., cultivar, breeding method, yield capacity and grain quality.

scholarly journals MONITORING STUDIES OF VIRAL DISEASES IN POTATOES PLANTINGS OF UKRAINIAN MARSHY WOODLANDS

2012 ◽  
Vol 15 ◽  
pp. 140-149
Author(s):  
O.A. Dmitruk ◽  
Yu.A. Dmitruk ◽  
T.A. Bova ◽  
A.V. Pirog ◽  
L.P. Kolomiets
Keyword(s):  
Viral Infection ◽  
Potato Virus ◽  
Potato Virus Y ◽  
Viral Diseases ◽  
Latent Infections ◽  
Viral Control ◽  
Laboratory Methods ◽  
Seed Material ◽  
Original Seed ◽  
Efficient Protection

The examinations of potatoes original seed nursery in north regions of Ukrainian marshy woodlands in 2012 (47 sorts) were performed. It was revealed that spreading of viral infection and diseases symptoms onset on potatoes cultivars increases with the number of field reproductions from 8,1 % (tube plants – seedlings) to 77–100 %. The wide-spreading of latent infections was observed – 57 % of tested samples. Potato virus М prevails in plantings as monoinfection (36,2 %) or in complex with other mosaic viruses (99 %), Potato virus Y was detected in 38,3 % of cultivars, with domination of necrotic isolates. The need of efficient protection and constant viral control of seed material with the use of laboratory methods and modern diagnostic facilities is emphasized.

Sign in / Sign up

Export Citation Format

Share Document