EFFECT OF CHLORELLA AS A BIOFERTILIZER ON GERMINATION OF WHEAT AND BARLEY GRAINS

Most of the agriculture sectors have been dependent heavily on inorganic chemical-based fertilizers, which are harmful for both human health and environment. The utilization of beneficial microbes as a biofertilizer has become major concern in industrial agriculture for their potential role in food safety and sustainable crop production. In this study, we examined the effect of Chlorella on germination of barley and wheat grains. Seeds were germinated in culture medium containing microalga (Chlorella sp. 56) and grown for 3, 6, 9 and 12 days in order to study its effect on growth parameters. In conclusion, Chlorella suspension increased the seed growth compared to those of control (sterilized culture medium) of seed germination. The best treatments were 0.06 g/L and 0.23 g/L of algal suspension for the root and shoot lengths of barley and wheat seeds, respectively

Phenology of Stipa krylovii Roshev. and Stipa tianschanica var. klemenzii Roshev., species dominating the vegetation communities of Hustai National Park

Includes bibliographical references.Presented at the Building resilience of Mongolian rangelands: a trans-disciplinary research conference held on June 9-10, 2015 in Ulaanbaatar, Mongolia.Hustai National Park (HNP), which is one of the important parts of the Mongolian Special Protection Areas network, was founded in 1992 with the purpose of reintroducing the Takhi horse (Equus ferus przewalskii). HNP vegetation phenology research was first done in 1999 and since 2003 has been conducted each year between 24th of April and 24th of September, every 10 days. The purpose of this study is to identify, with the help of dominant species, the response of vegetation growing period to climate changes and to clarify features of species' phenology changes. As a result of the research we identified and recorded general trends of dominant vegetation phenology stages and how these changes respond to environmental factors (air temperature and precipitation). Comparison of the phenology stages of the two grasses dominant in the mountain steppe and steppe communities, Stipa tianschanica var. klemenzii Roshev. and Stipa krylovii Roshev. identified that the May and June precipitation amount had a significant effect on the beginning of the species' spring growing period (p<0.027). The results show that the vegetation growing period of the species has been increasing in the mountain steppe communities

Results of Epizootiological Survey along the Border Areas of Kharkhira-Turgensky Natural Plague Focus between Russia and Mongolia in 2019

Objective of the study was to assess the current epizootic settings along the border part of KharkhiraTurgensky natural plague focus betweenRussia andMongolia.Materials and methods. Epizootiological survey covered 2715.5 km2. 213 samples of field material were tested (90 specimens of mammals, 102 specimens of ectoparasites, 17 samples of leftover food of predatory birds and dry skeletal remnants of marmots, 4 regurgitates of birds of prey). Laboratory works were carried out in “Microbiological laboratory for express diagnostics” mounted on the platform of the minibus “GAZelle”. Tests of field material were performed using immune-chromatographic (IC) assay and polymerase chain reaction (PCR). PCR and IC positive samples were further investigated applying bacteriological method. Epizootiological surveyed deployed GIS instruments. All the results obtained were plotted on the electronic maps using QGIS 2.18.26 software.Results and discussion. Capsular antigen (F1) of Yersinia pestis was detected in three (1.4 %) studied samples (n=213), DNA of plague microbe – in eight samples (3.7 %). Bacteriological investigation of positive samples revealed one sample (leftover food of predatory birds – Mongolian marmot) from which plague agent culture was isolated. The culture belonged to Y. pestis of the main subspecies. Geographical positioning of the epizootiological survey sites was conducted, as well as positive findings of immunological and molecular-genetic assays. Results of epizootiological survey are indicative of active phase of plague agent circulation (main subspecies) in Kharkhira-Turgensky natural focus in Mongolia