scholarly journals Efficiency of choosing promising walnut forms in the case of Uzbekistan

2021 ◽  
Vol 939 (1) ◽  
pp. 012043
Author(s):  
H F Hamroev ◽  
KH T Mashrapov ◽  
O A Shaymatov ◽  
D B Tulaev

Abstract Walnut (Juglans regia L) is one of the most important tree species in Uzbekistan. Natural walnuts have a valuable gene pool, among which there are many forms with different bioecological properties. In particular, biodiversity in terms of kernel quality is highly variable within the species. This article provides information on the analysis of quality indicators of walnut kernels in natural and local nuts. Among the indicators of kernel quality in the selected forms, the yield of walnut kernels was of high importance as the main indicator, and in the selected forms this indicator was 38.2-63.3. According to international indicators, Parkent-2, Boysun-1 and Humson-5 forms are recommended for wide use, given that the form with a yield rate of more than 50% is promising.

Walnut (Juglans regia L) is one of the most important trees among the species with high nutritional value in Uzbekistan. Naturally grown nut orchards have a valuable gene pool, among which there are many forms with different bioecological properties. In particular, biodiversity in terms of fruit quality is highly variable within the species.This article outlines the analysis data on quality indicators of walnut fruits in natural and local nutorchards. Among the indicators of fruit quality in the selected forms, the yield of walnut kernels was of high importance as the main indicator, and it was 38,2-63,3in the selected forms. At the same time, this indicator constituted 54,9% in the forms selected from Gazalkent, 58,0% in the forms selected from Khumsan, and 63,3% in the forms selected from Parkent. According to international indicators, the form with a yield of walnut kernel above 53% is considered promising one, thus, the forms Parkent-2, Gazalkent-1 and Humson-5 are recommended for wide use.


Author(s):  
Е.Е. Ульянченко

Исследовано влияние приема прорезания средней жилки на основные качественные показатели табачного сырья. Исследования проводили на листьях основных сортотипов табака Трапезонд и Остролист по массовым ломкам. Прорезание жилки осуществляли на инновационном оборудовании экспериментальном образце линии подготовки листьев табака к сушке ЛПТС360 (ВНИИТТИ, Краснодар). Качество табачного сырья с прорезанной жилкой определяли по товарным сортам, технологическим и курительным свойствам, химическому составу по методикам лабораторного контроля ВНИИТТИ. Инновационный способ подготовки табака к сушке в едином потоке с применением технологического оборудования, включающего прорезатель, выявил положительный технологический результат. Установлена эффективность приема прорезания средней жилки: срок естественной сушки листьев с прорезанной жилкой сократился в 2,5 раза выход 1го товарного сорта сырья составил 74,60 87,93 выход волокна сырья с прорезанной жилкой превышает минимальное значение технологических норм (75) в 1,15 1,26 раз условный расход сырья на единицу курительных изделий меньше норматива на 6 25 улучшен основной показатель химического состава табачного сырья (число Шмука) в 1,6 4,6 раза у сортотипа Трапезонд, в 1,2 1,5 раза у сортотипа Остролист дегустационные свойства сырья не ухудшились. Инновационный способ подготовки листьев табака к сушке, включающий прием прорезания средней жилки, рекомендуется для применения в производстве табачного сырья. The influence of middle vein cutting method on the main quality indicators of tobacco raw materials is studied. Studies were carried out on the leaves of the main varieties of tobacco Trapezond and Ostrolist, on mass breakdowns. Vein cutting was carried out on the innovative equipment of the line of preparation of tobacco leaves for drying LPTS360 (GNU VNIITTI RAA, Krasnodar). The quality of tobacco raw materials with a cut vein was determined by commercial grades, technological and Smoking properties, chemical composition in accordance with the methods VNIITTI. An innovative method of preparing tobacco for drying in a single stream with the use of technological equipment, including a cutter, revealed a positive technological result. The period of natural drying of leaves with cut veins decreased by 2,5 times. The yield of the 1st commercial grade of raw materials was 74,60 87,93. The output of the fiber raw material with cut vein exceeds the minimum value of technological norms (75) in 1,15 1,26 times. Conditional consumption of raw materials per unit of Smoking products is less than the norm by 6 25. The method of cutting the middle vein of the leaves improves the main indicator in the chemical composition of tobacco raw materials (Schmuck ratio) 1,6 4,6 times in the variety Trapezond and 1,2 1,5 times in the variety Ostrolist. The tasting properties of raw materials have not deteriorated. Analysis of raw material quality indicators showed that the innovative method of cutting the middle vein is effective and recommended for use in the production of tobacco raw materials.


2010 ◽  
Vol 62 (4) ◽  
pp. 1119-1124 ◽  
Author(s):  
N. Stavretovic ◽  
M. Vuckovic ◽  
B. Stajic

The study was performed in Mali Park, in the town of Obrenovac. Our findings are based on the data obtained after direct measurements of elements of growth and the derived indicators of tree vitality and ornamentalness. Cluster analysis was applied to determine the relatively homogeneous groups of tree species. The results show that the group with the best functional characteristics includes Platanus acerifolia, Tilia grandifolia and Fraxinus ornus, and the group of species with inferior characteristics includes Betula verrucosa, Juglans regia, Celtis australis, Acer platanoides, Cedrus atlantica and Acer negundo.


ÈKOBIOTEH ◽  
2021 ◽  
Vol 4 (2) ◽  
pp. 101-106
Author(s):  
N.S. Anokhina ◽  
◽  
V.F. Konovalov ◽  
E.R. Khanova ◽  
◽  
...  

Methodological aspects of microclonal reproduction of valuable tree species – triploid aspen and Karelian birch, which are important for enriching the gene pool of the main forest-forming tree species in the Republic and obtaining high-quality wood raw materials in the form of ornamental and decorative wood, are proposed.


Author(s):  
Sabrina Alica Meisen ◽  
Jamila Smanalieva ◽  
Zhyldyz Oskonbaeva ◽  
Janyl Iskakova ◽  
Dietrich Darr ◽  
...  

Abstract Kyrgyz walnut-fruit forests harbour a unique walnut diversity, which has rarely been investigated concerning nut properties and the influence of environmental conditions on these. We evaluated the influence of soil properties and altitude on physical and some chemical walnut properties at three sampling sites differing in altitude by 200 m. Walnut samples were collected from 15 randomly chosen trees. Soil samples from two depths under each tree were analysed for plant available mineral nutrients and soil chemical properties. In contrast to our hypothesis, physical nut and chemical kernel quality parameters did not differ between sampling sites at different altitude and were not affected by soil properties. Only pH showed a relationship with manganese availability in soil and kernel content, and was related to amino acid content of kernels. Tree and site-specific variability overrides abiotic influence caused by different altitude or soil properties and reflect the high genetic variability in these forests.


Author(s):  
М.Ю. Сергеев ◽  
Т.И. Сергеева ◽  
Н.И. Гребенникова

Рассмотрен подход к оценке результатов разработки веб-ориентированных систем в рамках экспертных систем на основе применения лингвистического подхода. Рассмотрены особенности формирования интегральных показателей качества функционирования и эксплуатации веб-ориентированных систем. Показан способ формализации требований экспертов к веб-ориентированным системам. Оценка эксплуатационных характеристик строится на основе формирования лингвистических шкал, позволяющих оценить качественные показатели, не имеющиe количественной оценки. Приведены примеры лингвистических термов для оценки разнообразных показателей работы веб-ориентированных систем. Приведено соответствие между уточняющими показателями качества разработанной системы и лингвистическими термами. Рассмотрен подход к переходу от качественных показателей к количественным частотным характеристикам. Экспертная система обеспечивает учет неопределенности в оценке веб-проектов и базируется на формализации неточной и нечеткой информации. Предложенный подход к формированию экспертной системы оценки разработанной веб-ориентированной системы обеспечивает согласованную оценку разработанной системы с помощью группы интегральных показателей качества. Экспертная оценка позволит определить соответствие реализации проекта поставленным целям разработки, что, в свою очередь, даст возможность установить, насколько будет успешной финансовая составляющая деятельности компании, что является главным показателем эффективности The article considers an approach to evaluating the results of the development of web-oriented systems in the framework of expert systems based on the use of a linguistic approach. It discusses the features of the formation of integral indicators of the quality of functioning and operation of web-oriented systems. We show the method of formalizing the requirements of experts for web-based systems. The evaluation of operational characteristics is based on the formation of linguistic scales that allow one to evaluate qualitative indicators that do not have a quantitative assessment. We give examples of linguistic terms for evaluating various performance indicators of web-oriented systems and also we give the correspondence between the clarifying quality indicators of the developed system and the linguistic terms. We considered an approach to the transition from qualitative indicators to quantitative frequency characteristics. The expert system takes into account the uncertainty in the evaluation of web projects and is based on the formalization of inaccurate and fuzzy information. The proposed approach to the formation of an expert evaluation system of the developed web-based system provides a consistent assessment of the developed system with the help of a group of integral quality indicators. The expert assessment will determine the compliance of the project implementation with the set development goals, which, in turn, will make it possible to determine how successful the financial component of the company's activities will be, which is the main indicator of efficiency


Forests ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 645
Author(s):  
Marius Aleinikovas ◽  
Iveta Varnagirytė-Kabašinskienė ◽  
Aistė Povilaitienė ◽  
Benas Šilinskas ◽  
Mindaugas Škėma ◽  
...  

Treatment of wood with various physical and chemical factors can change the number of wood parameters, which can also lead to changes in resistance to wood-destroying fungi. This study evaluates the effects of hydrothermal treatments (additives Fe2O3 or FeCl3 with and without commercial tannins, also without additives and fresh wood) on decay and mould fungi resistance of modified wood of Scots pine (Pinus sylvestris), Norway spruce (Picea abies), Douglas fir (Pseudotsuga menziesii), walnut (Juglans regia), and Norway maple (Acer platanoides). For wood samples, the resistance against wood decay fungi Trametes versicolor (white rot) and Coniophora puteana (brown rot) and the resistance against mould fungi Aspergillus niger and Penicillium sp. were assessed. The study findings showed that wood modified with iron compounds could cause a higher resistance to wood-destroying fungi. The weight losses of the modified and control wood, caused by T. versicolor and C. puteana, differed for coniferous and deciduous: the average weight loss of treated pine, spruce, and fir wood caused by C. puteana was higher than that caused by T. versicolor, while these differences on maple and walnut wood were not significant. The wood hydrothermal treatment with Fe2Cl3 with and without tannins significantly reduced the weight loss caused by T. versicolor and C. puteana, and the treatment with Fe2O3 slightly improved the decay resistance. For the wood, hydrothermally modified with FeCl3 and FeCl3 + tannins, the mould area for both tested Aspergillus niger and Penicillium sp. was smallest for the wood of all tested tree species compared to other treatments. A different response was obtained for coniferous and deciduous tree species wood. The spruce wood, followed by fir wood, treated with FeCl3 with and without tannins, was the most resistant against the mould fungi. Relatively low resistance against the mould fungi was fixed for the maple wood treated by various iron compounds, except the treatment with Fe2O3 + tannins, which gave a very positive response against the Penicillium sp.


Author(s):  
Vojtěch Řezníček ◽  
Petr Salaš

Within the gene pool collected at the Department of Breeding and Propagation of Garden Plants of the Faculty of Horticulture, Mendel University of Agriculture and Forestry in Brno, in Lednice we established experimental plots with some selected less known tree species - quince (Cydonia oblonga Mill.), sea buckthorn (Hippophäe rhamnoides L.), Cornelian cherry (Cornus mas L.) and honeysuckle (Lonicera caerulea subsp. edulis Turcy. ex Freyn.). The experimental plots were established in successive steps according to the availability of planting material and using conventional methods of cultivation. Evaluations are focused on selected growth parameters, phenology and commercial use of the fruit.The evaluations of the crown of quince showed differences in the size and shape. The variety Hemus had the largest crown volume (5.70 m3); the variety Blanár gave the highest harvest yields. The sea buckthorn varieties Polmix, Dar Katuni and Novosť Altaja produced the longest increments. The average weight of the fruit of the variety Leicora was 0.74 g. The varieties of Cornelian cherry also differed in the growth parameters; the highest shrubs were those of the variety Vyšegorodskij, which also produced the largest fruit – the average weight of the fruit was 4.85 g. The initial growth of selected varieties and genotypes of honeysuckle is different when compared to the fruit-bearing shrubs. Harvest data are in direct proportion to the size of the shrub. Fruit harvest began in mid-May and vegetation ended on 15 October.


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