scholarly journals Estimation of the biological efficiency of prospective dominant strains of bacteria in the rhizosphere of spring barley

2021 ◽  
Author(s):  
M. Kiroiants ◽  
◽  
M. Patyka ◽  
T. Patyka ◽  
◽  
...  
Keyword(s):  
Agricultural Production ◽  
Growth And Development ◽  
Spring Barley ◽  
Photosynthetic Apparatus ◽  
Culture Fluid ◽  
Physiological Parameters ◽  
Practical Significance ◽  
Biological Efficiency ◽  
Bacterial Suspension ◽  
Bacillus Methylotrophicus

An important task of modern agricultural production is the creation of new environmentally friendly agricultural technologies aimed at increasing the productivity of crops. Spring barley is an important forage crop, which occupies a significant place in the balance of concentrated feed. Therefore, our study is quite relevant today, given the trend towards the transition to organic farming and the development of biological fertilizers. The aim of the study was to determine the efficiency of inoculation with dominant strains of rhizosphere bacteria Phyllobacterium ifriqiyense 1 and Bacillus methylotrophicus 10 seeds of spring barley and physiological parameters of growth and development of the culture in model conditions. The task of the study is to determine the titer of viable bacteria, exposure of spring barley seeds in bacterial suspension, accounting for the growth of spring barley plants and fixing its biometric parameters after bacterization; determination of physiological parameters of plant growth and development in model conditions. Research methods – microbiological (direct calculation of viable colony-forming units using Goryaev's camera). Indicators of photosynthetic activity of the leaf were determined using the biophysical method of induction of chlorophyll fluorescence by a portable device "Floratest". The results of studies – the strain Phyllobacterium ifriqiyense 1 showed the maximum biological effect on the growth of test culture of barley (including dilution of culture fluid). It was found that treatment with bacterial suspensions of Phyllobacterium ifriqiyense 1 and Bacillus methylotrophicus 10 promotes the activation of the functions of the photosynthetic apparatus of barley plants in the laboratory. Prospects – rhizosphere microorganisms are important components of the environment in the early stages of ontogeny of cereals, so the use of dominant inoculating bacteria has scientific and practical significance in the optimization of agricultural production technologies.

CULTIVATION TECHNOLOGY ELEMENTS INFLUENCE ON NEW SPRING BARLEY BREWING VARIETIES YIELDS

1970 ◽  
pp. 21-25
Author(s):  
O. A. Artyukhova ◽  
O. V. Gladysheva ◽  
V. A. Svirina
Keyword(s):  
Growth And Development ◽  
Spring Barley ◽  
Photosynthetic Apparatus ◽  
Growing Season ◽  
Biological Indicators ◽  
Mineral Fertilizers ◽  
Mass Growth ◽  
Green Mass ◽  
Yield Structure ◽  
Cultivation Technology

The effect of applying various norms of mineral fertilizers on the biological indicators of crop plants during their growth and development in the Central non-black earth region in 2017-2019 was studied on the varieties of spring barley Vladimir, Reliable and Yaromir.such indicators as plant height, photosynthetic apparatus area, green mass growth, and elements of the yield structure were Studied. It was revealed that on average during the growing season, when the norms of mineral fertilizers were increased, the area of leaf plates increased and, as a result, the increase in green mass growth relative to the control variants increased by 56.3 % at (NРК)30, 82.3 % at (NРК)60, and 126.7 % at (NРК)90. The introduction of mineral fertilizers also influenced the formation of the crop structure. There was an increase in the tillering coefficient of varieties by 15.7%, 5.7 % and 21.3 % (Vladimir, Reliable and Yaromir, respectively) relative to the control, an increase in the number of grains in the ear from 15.1 to 22.4 PCs., the weight of 1000 grains from 48.0 to 55.7 g. and the weight of grain per ear from 0.7 to 1.2 g. There was a strong correlation between the doses of mineral fertilizers and the grain yield from + 0.80 to +1.0, and the variability was calculated.      

scholarly journals EFFECT OF BACILLUS GINSENGIHUMI M2.11 AND PANTOEA BRENNERI AS3 ON PLANT BIOMASS GROWTH AND SEED GERMINATION ENERGY

ÈKOBIOTEH ◽  
2021 ◽  
Vol 4 (1) ◽  
pp. 49-55
Author(s):  
D.L. Itkina ◽  
◽  
L.V. Sokolnikova ◽  
A.D. Suleimanova ◽  
M.R. Sharipova ◽  
...  
Keyword(s):  
Agricultural Development ◽  
Plant Biomass ◽  
Plant Protection ◽  
Average Length ◽  
Culture Fluid ◽  
Plant Protection Products ◽  
Practical Significance ◽  
Mineral Fertilizers ◽  
Bacterial Strains ◽  
Active Metabolites

In the modern conditions of agricultural development, the use of microbiological preparations as an alternative to mineral fertilizers and chemical plant protection products is gaining wide interest and practical significance. Soil microorganisms have the ability to interact with the root system of plants, optimize mineral nutrition, synthesize growth hormones and antimicrobial compounds that inhibit the development of phytopathogenic fungi and bacteria and have a stimulating effect on the growth and development of cultivated crops, increasing their resistance to phytopathogens and stress. The search for environmentally friendly technologies, the use of enzymes and active metabolites of bacterial origin, or the use of bacterial strains that promote plant growth is a promising direction. The effect of culture fluid of Bacillus ginsengihumi and Pantoea brenneri on the average length of the plant stem was studied. When processing wheat seeds of P. brenner AS3, the length of the first leaf increased by 50%, and B. ginsengihumi M2.11 by 25%.

scholarly journals Evaluation of adaptive capacity of genotypes of spring cereals in arid conditions of the Astrakhan region

2019 ◽  
pp. 25-30
Author(s):  
Valentina Aleksandrovna Fedorova ◽  
Nina Alekseevna Naumova ◽  
Ekaterina Vasylyevna Yachmeneva ◽  
Yulia Pavlovna Tarasenkova
Keyword(s):  
Adaptive Capacity ◽  
Spring Wheat ◽  
Growth And Development ◽  
Spring Barley ◽  
Climatic Conditions ◽  
Grain Yields ◽  
Arid Conditions ◽  
Local Soil ◽  
Spring Cereals ◽  
Biological Plasticity

Objects of research were: spring wheat Saratovskaya 70-st, Cardinal, 3 Curenta, Madam, Nil avocet yr7's, Angarida; spring barley Ratnik-st, Medium 135, grace, Vakula, Brassa; spring oats Showjumping-st, Leo, Bulan, Kuranin. As a result of the study of these varieties of spring crops, the most adapted to local soil and climatic conditions samples were identified. The selected samples were distinguished by high biological plasticity, growth and development rates, maximum use of moisture, as well as the ability to form high grain yields.

scholarly journals Clusters as an innovative organizational and economic form of efficient agricultural production in the system of sustainable development

Ekonomika APK ◽  
2020 ◽  
Vol 311 (9) ◽  
pp. 86-94
Author(s):  
Yurii Kernasiuk
Keyword(s):  
Sustainable Development ◽  
Agricultural Production ◽  
Cluster Model ◽  
Agricultural Development ◽  
Agricultural Sector ◽  
Scientific Basis ◽  
Practical Significance ◽  
Development Economic ◽  
Industrial Complex ◽  
Research Results

The purpose of the article is to highlight the conceptual understanding of the cluster as an innovative organizational and economic form of production in the system of sustainable development on the example of the agricultural sector and substantiate the scientific basis for ensuring its implementation at the regional level. Research methods. When carrying out the research, a set of general scientific methods and techniques was used; monographic - in the study of domestic and foreign publications and the above-mentioned problems; a systematic approach based on the principles of systems analysis and synthesis - to substantiate the relationship between sustainable development, the efficiency of agricultural production and the cluster model; abstract-logical - for the theoretical generalization of research results and determination of measures to ensure the implementation of the cluster model of agricultural development; economic analysis - to study the efficiency of agricultural production. Research results. The essence of the cluster in modern economic theory in the context of the concept of sustainable development has been studied and analyzed. Globalization, climate change and the aggravation of socio-economic and environmental problems in many countries of the world necessitate the search for new models of economic development. It has been established that one of the most optimal organizational and economic forms of effective agricultural production in the system of sustainable development is clusters. On the example of the Kirovograd region, a scientifically grounded regional model of the development of agro-clusters in the agro-industrial complex. Scientific novelty. Based on the synthesis of scientific theories of cluster and sustainable development, further study of theoretical and methodological approaches to the definition of the essence of clusters as a promising organizational and economic form of effective agricultural production in the system of sustainable development was obtained. Practical significance. The research results will find practical use in substantiating regional strategies for the development of agro-industrial production. They can be used in educational and educational programs, when providing consulting services for the creation of projects of agricultural clusters and in further scientific research.

scholarly journals Effects of Drought Stress on Photosynthetic and Physiological Parameters of Tomato

2020 ◽  
Vol 145 (1) ◽  
pp. 12-17 ◽  
Author(s):  
Guoting Liang ◽  
Junhui Liu ◽  
Jingmin Zhang ◽  
Jing Guo
Keyword(s):  
Soil Moisture ◽  
Drought Stress ◽  
Crop Yields ◽  
Physiological Parameters ◽  
Practical Significance ◽  
Horticultural Crop ◽  
Photosynthetic Gas Exchange ◽  
Moisture Contents ◽  
Effects Of Drought ◽  
Nonstomatal Limitation

Drought has become an important factor limiting crop yields in China. As an important greenhouse horticultural crop in China, the research of tomato (Solanum lycopersicum L. cv. Jinpeng No.10) is of great theoretical and practical significance. In the study, four different relative soil moisture contents (74% to 80%, 55% to 61%, 47% to 52%, and 25% to 30%) were used to induce drought stress. We investigated changes in photosynthetic gas exchange, chlorophyll fluorescence, and other related physiological parameters in response to different relative soil moisture contents. Drought inhibited the photosynthesis of tomato significantly, as shown by a clear decline in the net photosynthetic rate. Our results indicated stomatal limitation and nonstomatal limitation were responsible for the photosynthesis reduction.

scholarly journals Yield and Profitability of Crop Production in Mountain Less Favoured Areas

Agronomy ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 700 ◽  
Author(s):  
Kazimierz Klima ◽  
Angelika Kliszcz ◽  
Joanna Puła ◽  
Andrzej Lepiarczyk
Keyword(s):  
Agricultural Production ◽  
Crop Production ◽  
Spring Barley ◽  
Policy Issue ◽  
Field Bean ◽  
The European Union ◽  
Mountainous Areas ◽  
Climate Conditions ◽  
Wheat Field ◽  
Crucial Part

Agricultural production is a crucial part of policy issue in preventing depopulation of mountainous areas across Europe. However, soil and climate conditions are limiting yields and profitability of crop production in these regions. The European Union (EU) subsidizes agriculture in mountains by special payments (Less Favoured Area (LFA) subsidy) when areas match law-specified natural handicaps. This study aims to assess whether LFA subsidy in Poland is sufficient to cover losses caused by lower yields of crops cultivated in a mountainous region of Poland (Low Beskid Mountains in Carpathians) compared to lowland regions (non-LFA areas). The results indicated that LFA subsidy was adequate for crops (facultative wheat, winter wheat, field bean and spring barley) grown in the years 2015–2018.

The Growth and Development of Five Waterhemp (Amaranthus tuberculatus) Populations in a Common Garden

Weed Science ◽  
2017 ◽  
Vol 65 (2) ◽  
pp. 247-255 ◽  
Author(s):  
Joseph M. Heneghan ◽  
William G. Johnson
Keyword(s):  
United States ◽  
Agricultural Production ◽  
Growth And Development ◽  
Crop Production ◽  
Common Garden ◽  
Common Garden Experiment ◽  
Common Environment ◽  
Amaranthus Tuberculatus ◽  
Production Areas ◽  
Seed Yields

Waterhemp is a weed indigenous to the midwestern United States and is problematic in agronomic crop production. This weed is well suited to inhabit minimally tilled environments and is increasing in prevalence across many agricultural production areas and systems. A common garden experiment was established in Indiana in 2014 and 2015 with waterhemp populations from Indiana, Illinois, Missouri, Iowa, and Nebraska to compare the growth and development of waterhemp from these regions. Three establishment dates (May, June, and July) were used each year to simulate discontinuous germination. Mean biomass accumulations from the May (1,120 g plant−1) and June (1,069 g plant−1) establishment dates were higher than from the July (266 g plant−1) establishment date. There were no differences in biomass accumulations between the five populations in the May and June establishments, but biomass accumulations ranged from 195 to 338 g plant−1in the July establishment. Mean seed yields were higher from the May (926,629 seeds plant−1) and June (828,905 seeds plant−1) establishment dates compared with the July (276,258 seeds plant−1) establishment. In the May and June establishments, seed yields ranged from 469,939 seeds plant−1to 1,285,556 seeds plant−1. The Illinois population flowered the latest of all the populations yet also grew the tallest. The July establishment flowered the most rapidly after establishment, accumulated less biomass, and also had the largest seeds. This study demonstrated differences among waterhemp populations when grown in a common environment and the effect of establishment timing on waterhemp growth and development.

scholarly journals Phenology of the genetic model Setaria viridis (Poaceae) according to the BBCH-scale of development

2019 ◽  
Vol 192 (1) ◽  
pp. 224-241 ◽  
Author(s):  
Nicia E G Junqueira ◽  
Ana C M Bezerra ◽  
Marcus V O Cattem ◽  
Leonardo O Medici ◽  
Márcio Alves-Ferreira ◽  
...  
Keyword(s):  
Agricultural Production ◽  
Growth And Development ◽  
Genetic Model ◽  
Plant Biotechnology ◽  
Growth Stages ◽  
Setaria Viridis ◽  
Phenotypic Analysis ◽  
Morphological Attributes ◽  
Analysis Process ◽  
Development Data

Abstract Setaria viridis, a genetic model for C4 monocots, has potential to provide information of relevance for plant biotechnology, contributing to an understanding of how genetic engineering can affect phenotype and agricultural production. The BBCH growth scale for the A10.1 accession of S. viridis consists of a detailed phenotypic analysis process, based on defined growth stages. Measurements of morphological attributes complementing the scale were also made, supporting the identification of growth and development stages. Phenotypic stages were grouped into three major stages of development: vegetative (BBCH 0 to 4), reproductive (BBCH 5 to 8) and senescence (BBCH 9). Observation and interpretation of the growth and development data of accessions A10.1 and Ast-1 showed that the former presents phenotypic homogeneity, which makes it suitable for the construction of the BBCH-scale and improves our understanding of the phenology of this model plant. This methodological framework facilitates the comparison of genotypes and phenotypes among natural accessions and future mutants and the study of the evolution of tolerance to abiotic stress.

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