Determination of optimal amount of cells for growing seedlings oak with closed root system

2015 ◽  
Vol 3 (2) ◽  
pp. 72-75
Author(s):  
M. Smishlyaeva ◽  
V. Krasnov
Keyword(s):  
Root System ◽  
Optimal Amount

scholarly journals Relationship Between Root and Yield Related Morphological Characters in Pea (Pisum Sativum L.)

2014 ◽  
Vol 66 (1) ◽  
pp. 3-15
Author(s):  
Sylwia Ciaglo-Androsiuk
Keyword(s):  
Root System ◽  
Morphological Traits ◽  
Lateral Roots ◽  
Morphological Characters ◽  
Yield Potential ◽  
Cultivated Plants ◽  
Genetic Determination ◽  
Canonical Correlations ◽  
Effect On Yield

AbstractRelation between morphological traits of the root system and yield related traits is an important issue concerning efforts aiming at improving of ideotype of cultivated plants species, including pea. In this paper, to analyse the dependency between traits describing the root system morphology and yield potential, Person’s andSpearman's_correlations as well as canonical correlations were used.Root system was analyzed in 14 and 21 day-old seedlings growing in blotting-paper cylinders. Yield potential of pea was analysed in a field experiment. Results of Person’s and Spearman's_correlations revealed that number of lateral roots and lateral roots density were correlated witch yield related traits. Correlation between root length and shoot length was observed only for 14 day-old seedlings. The result of canonical correlations revealed that number of lateral roots and lateral roots density had the largest effect on yield related traits. This work highlights, that in order to improve the yield of pea it might become necessary to understand genetic determination of morphological traits of the root system, especially number of lateral roots.

scholarly journals Determination of the biological efficiency of microbial transformation of organic substances of champignon substrates using biodestructors and their importance as organic fertilizer of plants

2020 ◽  
pp. 94-110
Author(s):  
T. Ivanova ◽  
K. Podmarkova ◽  
S. Gruzinsky ◽  
M. Patyka ◽  
I. Chabanyuk
Keyword(s):  
Winter Wheat ◽  
Root System ◽  
Organic Fertilizer ◽  
Microbial Transformation ◽  
Stem Length ◽  
Biological Efficiency ◽  
Organic Substances ◽  
Spent Mushroom Substrate ◽  
Model Object

Goal. Determination of the biological effect of microbial transformation of organic substances of mushroom substrates for the use of biodestructors. Methods. The subject of the study was the used waste substrate after growing mushrooms. The biodestructors Extrakon and Bionorma Destructor were used for the transformation of organic substances of champignon substrates. Winter wheat ‘Smuglyanka’ variety was used as a test object. Research methods: biotechnological, biochemical, microbiological, statistical, light microscopy. Results. Scientific research was carried out and the literature data on the study of waste mushroom substrates and their use as an organic fertilizer were summarized. The monitoring of the possibilities was carried out using substrates after mushroom cultivation. The influence of domestic Extrakon and the Bionorma Destructor on spent mushroom substrates was studied. Established the benefits of using microfertilizer Extrakon and Bionorma Destructor on spent champignon substrates when growing agricultural plants using the example of winter wheat. The research results showed that when using an extract from a spent mushroom substrate, the stem length of the model increases 43.15% longer, and the root length is 1.17% longer, compared to distilled water. When we used an extract from a spent mushroom substrate fermented by Extrakon, the stem length of the model object is 25.12% longer, in comparison with the control, it is 79.11% longer. The length of the roots is 35.66% more compared with the use of an extract from an unfermented spent mushroom substrate, compared with the control — 37.24% more. When Destructor Bionorma was used, the growth of the model object is inhibited. Conclusions. Preparation Extrakon with a spent mushroom substrate in plants, the root system increases due to this, and the feeding area increases. This is due to the fact that the preparation Extrakon is designed for introduction into the soil and for its use the beneficial microflora of the soil is activated, transforms the components of the spent liver substrate, which are then absorbed by the plants and positively affect the nutrition of the root system.

scholarly journals NORMALIZATION AND DETERMINATION OF THE EDUCATIONAL LOAD OF TEACHERS AS A METHOD FOR OPTIMIZING THE CALCULATION OF PAYMENT OF TS

2019 ◽  
Vol 2019 (3) ◽  
pp. 36-40 ◽  
Author(s):  
Ангелина Малюкина ◽  
Angelina Malyukina ◽  
Татьяна Геращенкова ◽  
Tatyana Gerashchenkova
Keyword(s):  
Higher Education ◽  
Higher Education Institutions ◽  
Faculty Members ◽  
Teaching Staff ◽  
Innovative Development ◽  
Optimal Amount ◽  
Teaching Load ◽  
The University

This article discusses the problems associated with the effectiveness of standardization and determination of all types of work of the teaching staff. The problem in this case lies not only in determining the optimal amount of funding for the university, but also in the search for approaches to its justification. Moreover, the literacy of these decisions directly affects the innovative development of higher education institutions and the calculation of salaries of faculty members. The influence of this factor on the payroll calculation of teaching staff, as well as the optimization of this process, is shown. The calculation of wages is influenced by a lot of factors that must be considered. Work on improving the system of standardization of the teaching load of a teacher should continue and develop.

scholarly journals Determination of the optimal amount of scattering in a wavelength conversion plate for white LEDs

2015 ◽  
Vol 23 (24) ◽  
pp. A1629 ◽  
Author(s):  
Jana Ryckaert ◽  
Sven Leyre ◽  
Peter Hanselaer ◽  
Youri Meuret
Keyword(s):  
Wavelength Conversion ◽  
Optimal Amount ◽  
White Leds

scholarly journals Comparison of Methodologies for Acid Buffering Capacity Determination—Empirical Verification of Models

2019 ◽  
Vol 9 (11) ◽  
pp. 2345
Author(s):  
Patryk Król ◽  
Piotr Borysiuk ◽  
Mariusz Mamiński
Keyword(s):  
Raw Materials ◽  
Chemical Properties ◽  
Bond Line ◽  
Buffering Capacity ◽  
Raw Material ◽  
Optimal Amount ◽  
Acid Buffering ◽  
Materials Used ◽  
Different Origins

Raw materials used in particleboard production may have different chemical properties as they have different origins, nature, and storage histories. One of the most important factors is the acidity of the wood which affects the process of bond line formation. Thus, determination of the acid buffering capacity (ABC) of a raw material helps to adjust the optimal amount of hardener in the adhesive. In the present study, three methods for pH-metric ABC determination in the presence of lignocellulosic material were compared. Models that correlate the hardener amount with the internal bonding of particleboards were built from the ABC results. The approach was tested on three materials of different acidity—pine, oak, and ammonia-treated oak. The developed models allowed the prediction of the optimal amount of hardener for the maximized internal bond of the boards. The experimental verification of the models showed a high convergence of the calculated and empirical results.

scholarly journals Determination of the interrelations between the apple root system and the physico-chemical soil properties

2019 ◽  
Vol 24 (3) ◽  
pp. 432-439
Author(s):  
VALERICA TUDOR ◽  
◽  
DUDU GEORGE ◽  
RAZVAN TEODORESCU ◽  
COSTEL MIHALASCU ◽  
...  
Keyword(s):  
Soil Properties ◽  
Root System ◽  
Physico Chemical ◽  
Chemical Soil
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