scholarly journals The low-volume technology of Fitopyramida type and the potential of tomato hybrids of various commodity groups

2021 ◽  
pp. 31-34
Author(s):  
М.Н. Аль-Рукаби ◽  
В.И. Леунов ◽  
Т.А. Терешонкова ◽  
А.К. Спасский

Качество урожая томатов обусловливается физиологическими и биохимическими характеристиками плодов, которые зависят от условий, обеспечивающих рост и развитие растений. Для создания этих условий производителям необходимо искать современные экологически дружественные и эффективные способы производства. Гидропонная система «Фитопирамида» обеспечивает рациональное использование пространства с наибольшим количеством растений на единицу площади за счет многоярусных установок. Технология «Фитопирамида» – альтернативное решение для получения экологически безопасных органических продуктов при одновременном снижении потребления воды, удобрений и пестицидов. Исследования проводили в 2020–2021 годах во ВНИИО – филиале ФГБНУ ФНЦО (д. Верея Московской области). Растения выращивали в поликарбонатной теплице ООО «Фитопирамида», площадь выращивания – 326,4 м2, общая площадь – 460 м2. В испытании участвовали 11 гибридов томатов с разным уровнем скороспелости и различных товарных групп. Растения томата формировали в один стебель, еженедельно проводили подкручивание, удаление пасынков, при формировании первой кисти регулярно удаляли нижние листья. Формировали на 3–4 кисти. Для лучшего завязывания плодов в теплице использовали шмелей. Опыт проводили в четырехкратной повторности, общее количество опытных единиц достигло 44. Определяли всхожесть (%) на 10 сутки от посева, общую продуктивность (г/куст), среднюю массу одного плода (г). Среди индетерминантных крупноплодных гибридов F1 Румяный шар был лучшим вариантом, подходящим для технологии «Фитопирамида» (его продуктивность достигала 1936,27 г/куст, а масса плода – 140,10 г). Из группы детерминантных раннеспелых гибридов выделился F1 Капитан, продуктивность которого достигала 1751,58 г/ куст, а масса плода – 86,84 г. Гибрид F1 Афродита был с точки зрения производства наименее пригоден для гидропоники. Гидропонное производство дает возможность повысить качество и продуктивность сельхозкультур, а также решать экологические проблемы, что позволит повысить конкурентоспособность такого типа производства, обеспечит экономию ресурсов и увеличит его доходность. The quality of the tomato harvest is determined by the physiological and biochemical characteristics of the fruit, which depend on the conditions that ensure the growth and development of plants. To ensure these conditions, manufacturers need to look for modern environmentally friendly and efficient production methods. The Fitopyramida hydroponic system ensures the rational use of the space with the largest number of plants per unit area due to multi-tiered installations. Fitopyramida technology is an alternative solution for obtaining environmentally friendly organic products, while reducing the consumption of water, fertilizers and pesticides. The research was carried out in 2020–2021 at the All-Russian Research Institute of Vegetable Growing – branch of Federal Scientific Centre of Vegetable Growing (Vereya village, Moscow region). The plants were grown in a polycarbonate greenhouse of Fitopyramida LLC, the cultivation area is 326.4 m2, the total area is 460 m2. The test involved 11 tomato hybrids with different levels of precocity and different product groups. Tomato plants were formed into one stem, twisting and removal of stepsons were carried out weekly, and the lower leaves were regularly removed during the formation of the first brush. They were formed into 3–4 brushes. Bumblebees were used for better fruit tying in the greenhouse. The experiment was carried out four times, the total number of experimental units reached 44. Germination (%) on the 10th day from sowing, total productivity, g/bush, average weight of one fruit (g) were determined. Among the indeterminate large-fruited F1 hybrids, the Rumyanyi shar was the best hybrid suitable for the Fitopyramida technology (its productivity reached 1936.27 g/plant, and the fruit weight was 140.10 g). F1Kapitan stood out from the group of determinant early-maturing hybrids, whose productivity reached 1751.58 g/plant, and the fruit weight was 86.84 g. The F1Afrodita hybrid was the least suitable for hydroponics from the point of view of production. Hydroponic production makes it possible to improve the quality and productivity of agricultural crops, as well as solve environmental problems, which will increase the competitiveness of this type of production, ensure resource savings and increase its profitability.

Author(s):  
Michael Machado ◽  
Raul Fangueiro ◽  
Daniel Barros ◽  
Luís Nobre ◽  
João Bessa ◽  
...  

Abstract With the recent advances in the additive manufacturing (AM) production technologies, AM is becoming more common in today’s industry, nowadays is a normal practice to use this solution either to test a new prototype or to manufacture a functional product. The increase application is mainly due to significant developments in the production solutions of the AM. These recent developments are resulting in an increase search for new and more efficient production solutions. This search is always focused in producing more efficiently, with a greater variety of materials and produce part with better quality and proprieties. From an industrial point of view, one of the types of additive manufacturing that is increasing the percentage of use is the selective laser sintering (SLS) technologies. Although this process was first used in the mid-80’s, it has shown great developments in the recent years. This evolution of the process allowed it to become a solid solution even if it is highly time consuming, especially when compared with other types of addictive manufacturing. From the several aspects that make the SLS a robust solution is the fact that it offers a consistent solution to produce high complex part with good mechanical properties, and also the ability to use many core materials, from polymers, metal alloy, ceramics or even composites materials. Due to the fact that the production of part using SLS technologies takes a long time, shows the relevance to study the entire process in order to quantify the time spent in each stage a very important step. This study can be conducted with two major goals, in one hand to be able to predict the build time needed to complete a predetermined task, and in other hand, to improve the overall efficiency of the process based on the knowledge acquired in the previous analysis. These two aspects are important because they allow the machine operator to choose the production plan more carefully and also to know all the parameters of the process to make it more efficient. In this paper will be presented a survey of the major stages of a SLS process in order to quantify the time consumed in each one of the stages, and if possible, determine solution to reduce the time spent. To better understand the topic the paper will be divided according to the proprieties and time consumed in each of the elements of the process. In other words, it will be divided accordingly to a machine, laser and material point of view. Furthermore, this paper will be focused in the SLS process and the productions based in a polymeric powder, therefore also containing aspects related to the power source used.


Author(s):  
David Novotný ◽  
Jana Brožová ◽  
Pavla Růžičková ◽  
Josef Sus ◽  
Martin Koudela ◽  
...  

In the years 2014 to 2016 the influence of apple tree wood chips and composted apple tree wood chips in which oyster mushroom grew and yielded which were supplemented into soil on strawberry field production and occurrence of grey mould at strawberry (cv. ‘Sonata’) was evaluated. Average weight and number of fruits per plant, average fruit weight, average weight and number of fruits affected by Botrytis cinerea per plant, percentage of weight and number of fruits affected by Botrytis cinerea was calculated. There were recorded differences concerning strawberry yield among the investigated variants of plots, but mainly there were not statistically significant. In 2015 and 2016 the highest average weight of yield and the highest number of fruits was reached at plants cultivated on plots with apple tree wood chips. Average weight of yield on plots with apple tree wood chips was 663.72 g and 822.41 g in 2015 and 2016, respectively. Number of fruits per plant on plots with apple tree wood chips was 67.88 pieces and 65.29 pieces in 2015 and 2016, respectively. Occurrence of grey mould caused by Botrytis cinerea on all variants of plots was similar and small differences was found out only but statistically significant difference was among the years. Grey mould was the most frequently found out in the year 2016. B. cinerea affected 48.27, 56.89 and 55.94 grams of fruits per plant from plots with composted apple tree wood chips, plots with apple tree wood chips and control plots in 2016, respectively.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
S. Kalaiselvan ◽  
S. Anuja

The present investigation consisted of 9 lines, 3 testers with their 27 F1 hybrids developed through line x tester mating fashion in randomized block design with three replications. Parents and hybrids differed significantly for gca and sca effects, respectively. Among the parents, maximum gca effect was found in EC 112241 and Aruna for inter node distance, EC 112241 and Arka Anamika for single fruit weight, EC 109454, EC 169344 and Arka Anamika for number of branches per plant, EC 169331 and Arka Anamika for number of fruits per plant, EC 109454 and Aruna for plant height at final harvest. The crosses exhibited maximum positive significant sca effect was observed in EC 112241 x Aruna, EC 109454 x Kashi Kranti and EC 112264 x Aruna were found as good specific combiners for single fruit weight, number of branches per plant and number of fruits per plant respectively. The hybrid EC 112264 x Aruna exhibited maximum significant negative sca effects for inter node distance and plant height at final harvest.


2019 ◽  
Vol 3 (1) ◽  
pp. 7
Author(s):  
Tyagita Hartady ◽  
Arvia Nisrina Praditha ◽  
Nabila Ayu Faza ◽  
Rini Widyastuti

Cardamom is known as a plant with millions of benefits and it is known to contain aphrodisiac substances. The role of cardamom as an aphrodisiac need to be studied more deeply from the scientific point of view. The experimental object is a 3-month-old male white mice (<em>Mus musculus albinus</em>) with an average weight of about 30-35 grams. After being acclimatized for approximately 2 weeks, 35 mice were divided into 3 groups based on the dose of cardamom extract. At the end of the experiment, the mice will be sacrificed and then the testes were weighed and cauda epididymis were isolated to collect the sperm. Our findings suggested that the dose of administration has important role in affecting the weight of testes and bodies of mice. However, further studies on sperm profiles and optimal administration doses of cardamom extract are highly recommended.


2021 ◽  
Vol 10 (19) ◽  
pp. 201-208
Author(s):  
Emilian Madoşă ◽  
Lavinia Sasu ◽  
Sorin Ciulca ◽  
Constantin Avădanei ◽  
Adriana Ciulca ◽  
...  

The aim of the research was to evaluate the variability value of the main characters that contribute to the achievement of plant production to a collection of hot pepper genotypes. The biological material was composed of 17 landraces of hot peppers collected from western Romania. The study was conducted for two years, with biometric measurements on the morphological characteristics of fruit production on the plant. Intra-population variability was assessed (mean, standard deviation of mean and coefficient of variability) and differences between populations for these characters. The results show that the variability within the collection is high. Within populations, fruit sizes (length, diameter) are uniform, but the number of fruits and their weight per plant show greater variability. Within the collection, variations in morphological characteristics are large, especially for fruit length, fruit weight, number and weight of fruit per plant. Among the landraces studied, some may be recommended for breeding programs, as parents or as material for the application of selection: for long fruits (Juliţa, Aldeşti I and Satchinez I), for short fruits (Satchinez III), but also the landraces Rieni III (17.07 g average weight of the fruit), Temerești II (89.82 fruits per plant), Aldești I (931.17 g fruits per plant).


2018 ◽  
Vol 28 (2) ◽  
pp. 154-165 ◽  
Author(s):  
Kelly Gude ◽  
Cary L. Rivard ◽  
Sara E. Gragg ◽  
Kimberly Oxley ◽  
Petros Xanthopoulos ◽  
...  

Specialty crop production in high tunnel systems has greatly expanded in the central United States. Strawberry (Fragaria ×ananassa) may be a viable high-value crop for high tunnel growers, but fall-planted production systems have a high opportunity cost in regard to winter production space. This study investigates the feasibility of spring-planted day-neutral strawberry cultivars in a high tunnel production system in Kansas. Furthermore, the goals of this report are to identify day-neutral cultivars that are successful in this production system and investigate the utility of evaporative cooling (EC), as they relate to fruit yield and marketability as well as incidence of gray mold (caused by Botrytis cinerea). High tunnel trials were conducted at the Kansas State University Olathe Horticulture Research and Extension Center during 2014 and 2015. Six commercially available cultivars were evaluated: Albion, Evie 2, Monterey, Portola, San Andreas, and Seascape in both years. Mature fruit (90% to 100% red) were harvested twice weekly for total and marketable (fruit with no defects) fruit yield. The results indicate that ‘Portola’ had the highest total fruit weight in both years at 0.60 and 0.51 kg/plant, respectively, and was significantly higher than ‘Monterey’, ‘Albion’, and ‘San Andreas’ in both years (P < 0.05). In 2014, ‘Portola’, ‘San Andreas’, and ‘Albion’ produced the largest total fruit average weight (grams/fruit) and were significantly larger than ‘Seascape’ and ‘Evie 2’ (P < 0.05). In 2015, ‘Portola’ had significantly larger fruit than all the other cultivars except San Andreas (P < 0.05). Marketability percent by weight ranged from 76.5% to 88.6% across both years and the highest marketability was observed with ‘Albion’ (89% and 83%) and ‘Monterey’ (85% and 84%) in 2014 and 2015, respectively. An examination of fruit production during the early, mid-, and late seasons was used to determine seasonal dynamics of each cultivar and the high tunnel system. The overall trend was that total fruit weight was highest during the midseason and total average fruit weight was largest in the early season. However, ‘San Andreas’ and ‘Seascape’ had similar levels of production between the early and midseason and had the lowest level of production in the midseason, particularly in the 2015 trial. In our trials, the use of EC did not affect fruit weight or gray mold incidence on strawberry fruit. Based on the crop productivity observed in our study, this production system has the potential to extend the season for strawberry growers in the central United States or provide a high-value rotational crop for existing high tunnel growers that does not require winter production space.


2020 ◽  
Vol 23 (1) ◽  
Author(s):  
Carolina Zuluaga-Mazo ◽  
David Arango-Bermudez ◽  
Walter Alfredo Salas-Zapata

The use of microorganisms as part of environmental management action, aimed at dealing with environmental issues, results in an interesting and more environmentally friendly alternative to the conventional physicochemical decontamination methods. In this sense, a profile of the use of microorganisms in environmental management would prove helpful for people and organizations to make their processes more sustainable. However, the publications that describe the use of microorganisms within environmental management tend to show their author’s point of view, rather than the results of a systematic study in this field of knowledge. Consequently, descriptions of microorganisms, environmental issues and economic sectors involved do not necessarily reflect how developed research in microbiology and environmental management is. Therefore, the aim of this study was to describe the use given to microorganisms within environmental management, providing a profile related to the environmental issues tackled, natural resources affected, and economic sectors involved. A systematic review of scientific literature published between 2012 and 2017 led us to the description of three types of use given to microorganisms, six types of natural resources protected through such uses, ten types of environmental issues, and eight economic sectors in which the uses mentioned are applicable.


1970 ◽  
Vol 27 (1) ◽  
pp. 125-146 ◽  
Author(s):  
N. V. Martin

From 1936 to 1965 food content was examined in 17,171 Lake Opeongo lake trout (Salvelinus namaycush). The diet is analysed from the point of view of frequency of occurrence of foods, their weight, feeding activity of trout, size of trout and size of food, and seasonal and annual changes in food habits.In the late 1940's and early 1950's perch, Perca flavescens, largely disappeared from the diet. The lake trout initially turned to lake whitefish, Coregonus clupeaformis, and then to the cisco, Coregonus artedii, introduced into Lake Opeongo in 1948.As a result of these dietary changes lake trout are now heavier and rate of growth has improved. Age and size at maturity is later and there are fewer infertile fish. Egg counts, egg size, and ovary weights are now greater, particularly in the medium-sized lake trout.In the fishery the average weight of individual trout taken has almost doubled. About 25% more of the immature stock is exploited by the recent fishery. The harvest and catchability of lake trout has remained generally constant on a numerical basis but show an improvement on a poundage basis in the more recent years. The possible effects of these changes on the character of the fishery are discussed.


2014 ◽  
Vol 1044-1045 ◽  
pp. 1549-1552 ◽  
Author(s):  
Otakar Cigler ◽  
Karel Kubečka ◽  
Petr Waldstein

The construction and rehabilitation of buildings and structures are intervention in the environment of people. Therefore, we are always looking for new technologies that are not only environmentally friendly but also acceptable from the point of view. Speed, flexibility, minimum limit for residents and transport, and also a high efficiency is the reason why more and more in recent years carried out the rehabilitation of sewerage using remediation sleeves. One of the systems of trenchless rehabilitation of sewerage systems used in Western Europe is a system company RELINEEUROPE Alphaliner Liner GmBH & co., the company's Technicians have developed one of the most important practices in the area of trenchless rehabilitation of sewerage systems. A large proportion of the development also has operators and owners of the pipeline. Technology offers very high quality of carried out restorations. This article describes the procedures for ensuring the quality of the used in Germany, which is a world leader in the development, production and use of this technology.


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