scholarly journals Development and quality of gladiolus stems with the use of vermicompost and Trichoderma sp. in substrate

2018 ◽  
Vol 24 (1) ◽  
pp. 70-77
Author(s):  
Fernanda Ludwig ◽  
Letícia Rutz Dewantier Da Cruz ◽  
Gerusa Pauli Kist Steffen ◽  
Joseila Maldaner

The gladiolus is an important cut flower that is cultivated in all parts of the world, and it is very appreciated to be used in floral arrangements. The growing concern with the environmental contamination and the look for production with higher quality have resulted in increasing the number of studies on the use of organic inputs and microorganisms in floriculture, in particular, the vermicompost and the Trichoderma sp. This work was conducted with the objective to evaluate the development and the quality of gladiolus floral stems in function of the use of vermicompost and Trichoderma sp. applied to the substrate. The experiment was conducted in a greenhouse during the period of August to December of 2015. It was done by utilizing four treatments: T1 = control substrate (50% soil and 50% commercial substrate Carolina Soil); T2 = vermicompost (40%) and control substrate (60%); T3 = Trichoderma sp. added to the control substrate; T4 = Trichoderma sp. added to the vermicompost (40%) and control substrate (60%). The gladiolus variety used was the Peter’s Pears. The variables analyzed were main plant height, Falker chlorophyll index, length and diameter of the main stem, tassel length, quantity of main stem florets, proportionality between tassel and stem, and time until the start of flowering. It was concluded that the development and the quality of the gladiolus floral stem were favored by the use of vermicompost in the concentration of 40% added to the substrate.

2018 ◽  
Vol 39 (6) ◽  
pp. 2325 ◽  
Author(s):  
Maria Yumbla-Orbes ◽  
José Geraldo Barbosa ◽  
Wagner Campos Otoni ◽  
Marcel Santos Montezano ◽  
José Antônio Saraiva Grossi ◽  
...  

Flowering induction and control is a limiting factor when commercially producing cut flowers of lisianthus and seed exposure to low temperatures, a physiological event called vernalization, induces the differentiation of vegetative buds to reproductive buds, contributing to a flowering that is uniform and has quality. The objective of this study was to evaluate the influence of seed vernalization in three cultivars of lisianthus (Excalibur, Echo and Mariachi) for 12, 24, 36 and 48 days at temperatures of 5, 10 and 15°C, in the production and quality of buds, making this technology feasible to large-scale production. During cultivation it was observed that the lower the temperature and higher the vernalization period, the lower the cycle and the greater the number of plants induced to flowering for all three cultivars, and those are important features in the context of flower production in a commercial scale. The seeds subjected to vernalization originated plants that produce flower stems within the standards required by the market, showing that vernalization was efficient to induce flowering without affecting the quality of the buds. To produce lisianthus as a cut flower of quality, it is recommended seed vernalization of Mariachi and Echo cultivars for 24 days at 5°C and Excalibur for 36 days at 5°C.


2016 ◽  
Vol 22 (2) ◽  
pp. 166
Author(s):  
Gláucia Moraes Dias ◽  
José Maria Monteiro Sigrist ◽  
Patricia Cia ◽  
Sylvio Luís Honório

Rosa sp. is the leading cut flower commercialized in Brazil and in the world; and to maintain stem quality it should be stored at 1 °C, however, there are still doubts about the storage of roses, especially whether the stems should be cold stored in water before marketing. In order to assess the feasibility of wet and dry storage, rose stems, ‘Avalanche’ were stored for 28 days in both conditions at 1 ± 2 °C / 95% RH. Weekly stems batches were transferred to 25 °C / 70% RH and kept in vessels containing tap water for postharvest assessment. It was observed that the decrease in the quality of the roses was inversely proportional to the storage time in both treatments. Although wet storage can occur for up to 21 days, when you need to store roses for a week or two, cold storage in dry condition is advised since it is more economical and viable for the producer.


Author(s):  
Suvarna Gaikwad ◽  
Parth Dode ◽  
Shubham Chhipa ◽  
Shubhangi Vaikole

<p>Vehicles being the most widely used machines need to get smarter compared to their current technology. The necessity described by the younger generation of users, the millennials, for their devices to be smart and their vision to have more computerized and smarter applications of various sensors. The invention and development of better-computerized systems for infotainment and control of vehicles have taken speed and research is done mainly in an open-source on Linux kernel-based operating systems. The Smart Bike System is a Raspberry pi based operating system(AGL) for bikes tracks the various components of the bike like Speed, Quantity of fuel, Distance covered in a single trip, Temperature, Date and Time. We make a note that the current system of dashboards for representing the various aspects of a bike is old. A significant improvement would be made in the quality of the bike and the way people use it if the current computer technology of the world embraces the vehicular system. Automotive Grade Linux(AGL) is an (open source tech) operating system for automobiles which when installed on a computer in synchronization with the parts of a motor-bike has an ability to display more information in a more colorful and animated format like a computer desktop but specifically for automobiles.</p>


2020 ◽  
Vol 13 (1) ◽  
pp. 62
Author(s):  
Magaiver Gindri Pinheiro ◽  
Clovis Arruda Souza ◽  
Elijanara Raissa Silva ◽  
João Francisco Costa Carneiro Junior ◽  
Alex Fernando Basilio ◽  
...  

Trinexapac-ethyl (henceforth referred to as trinexapac) is a growth regulator that can mitigate some undesirable vegetative growth in Poaceae plants, reducing lodging and optimizing the distribution of photoassimilates to reproductive organs. The objective of this research was to evaluate the morphophysiological and productive responses of rye cultivars and trinexapac doses applied at different phenological stages of plants. Two field experiments were performed in two different seasons. In the 2015 growing season, 8 doses of trinexapac were evaluated: 0, 75, 85, 100, 115, 130, 150, 200 g ha-1 of active ingredient (a.i.), applied at the plant growth stage with the 4th node visible on the main stem (GS34). In the 2018 growing season, two cultivars (IPR 89 and BRS Serrano) and five doses of trinexapac were evaluated: 0, 50, 100, 150 and 200 g a.i. ha-1, applied at the plant growth stage with the 6th node visible on the main stem (GS36). The morphophysiological, productive and qualitative characteristics of grains were evaluated. In the 2015 season, trinexapac applied to shoot plants at GS34 only have low response in decreased plant lodging from around 20% to 10%. However, in the 2018 season, the application of trinexapac on plants at GS36, resulted in lower plant height, associated with reduced lodging and better quality of rye grains. Cultivar IPR 89 showed higher values for yield components and grain quality in comparison to cultivar BRS Serrano. Reduced lodging is dependent on speed of resumption of plant height growth, and the magnitude of response to trinexapac is also stage-cultivar-dose-dependent; in rye, the best response to trinexapac was found at GS 36 in comparison to GS 34, and for IPR 89 in comparison to BRS Serrano cultivar, respectively, with a dose range from 100 to 150 g ai ha-1. In conclusion, trinexapac (around 150 g a.i. ha-1), when applied to plants at GS36, reduces plant height, reduces the lodging index and enables the harvest of high-quality grains.


2009 ◽  
Vol 57 (2) ◽  
pp. 165-174
Author(s):  
F. Hassan

This investigation was carried out to study the effect of 100, 200 and 300 ppm 8-hydroxyquinoline sulphate (8-HQS) and 5 and 10% sucrose treatments on the vase life and post-harvest quality of cut flowers of Strelitzia reginae Ait. and Hippeastrum vittatum Herb. cv. Apple Blossome. All possible combinations of 8-HQS and sucrose were tested. The treatments were applied as holding solutions, and control flowers were held in distilled water till the end of the experiment. All the treatments significantly increased the vase life and number of open florets of Strelitzia reginae cut flowers compared to the control. Applying 8-HQS and sucrose treatments in both seasons improved the vase life and floret longevity of Hippeastrum vittatum cut flowers. In addition, the percentage of fresh weight gain from the initial weight and the carbohydrate content were also enhanced in both cut flower crops. In order to obtain the highest post-harvest quality of Strelitzia reginae Ait. and Hippeastrum vittatum Herb. cv. Apple Blossome cut flowers, treatment with 200 ppm 8-HQS + 10% sucrose was recommended.


2017 ◽  
Vol 23 (3) ◽  
pp. 351 ◽  
Author(s):  
Jean Carlos Cardoso

Orchids are considered one of the most important potted-flowering in the world. Oncidium genus, as well their hybrids group (OHGs) has used for the flower market as pot or cut flower.  However, some horticultural characteristics require improvements, e.g. the production of precocious cultivars, independent-season blooming or easy flowering induction, high quality and durability of flowers and variations in color of flowers, to compete with Phalaenopsis and Dendrobium orchids, as other flower groups. Aiming this purpose there were used hand-crossing pollination between the Oncidium ‘Sweet Sugar’ and Ionopsis utricularioides, a Brazilian wild species, for evaluate the capacity of crossing and to select progenies with interest of use in floriculture as new cultivar. The seeds obtained from this cross were seeded on in vitro conditions, followed by acclimatization and cultivation on greenhouse conditions until de flowering time. One of the plants obtained presented interesting characteristics, as good and rapid vegetative development and high quality of blooming. This hybrid obtained from an intergeneric crossing resulted in a plant with vegetative and flower type characteristics and color similar of Oncidium female parent, but with larger number of ramifications in inflorescence and number of flowers (60% and 219,4%, respectively) than Oncidium parent (♀), and with more similarity with Ionopsis (♂). This hybrid cultivar, called Ionocidium ‘Cerrado 101’ is one more option of OHGs in this competitive market and can be used either for pot and also for cut orchid flowers production, main because it longer inflorescence (83 cm).


Author(s):  
Микола Васильович Нечипорук ◽  
Олена Олексіївна Поліщук ◽  
Антон Сергійович Полупан

The article deals with the issues of improving the methods of forming accounting for ultralight aircraft. The article provides information on the identification of ultralight aircraft according to the classification of the International Aviation Federation (IAF) and the laws of Ukraine. It is analyzed the market for ultralight aircraft , the main manufacturers of ultralight aircraft in the world are identified. It is identified the main categories of consumers of ultralight aircraft. It is highlighting the perspectives and main problems of the development of ultralight aviation in Ukraine and the world and  stages of the design of ultralight aircraft. Attention is focused on the practice of global aviation industry, which suggests that gaining new positions and supporting competitiveness of production in the market requires continuous improvement of aircraft quality and the creation of innovative technologies in the face of stringent requirements for scientific, technical, technological, organizational, economic, personnel and investment support for design and aircraft manufacturing. The solution to this problem is primarily related to the effectiveness of the steps taken by the designer, the improvement of production processes and manufacturing technology. Determined by the most promising solution to reduce economic risks and control the level of demand is to attract the customer (consumer) in the process of designing aircraft products. The research objectives are defined and solutions are proposed for improving the design quality of ultralight airplanes by introducing consumer criteria into the design process of ultralight airplanes to meet a wide range of applications. The use of the obtained solutions will allow the manufacturer to make more effective design decisions on the design of ultralight aircraft. Research will further improve the methods of forming ultra-light aircraft in the early design stages


Author(s):  
K. P. Raverkar ◽  
Navneet Pareek ◽  
Ramesh Chandra ◽  
Swati Chauhan ◽  
S. T. Zodape ◽  
...  

Seaweeds are marine macro algae, which form an important component of the marine living resources of the world. To evaluate the efficiency of seaweed (<italic>Kappaphycus</italic> and <italic>Gracilaria</italic>) saps on growth, yield and nutrition of <italic>Vigna radiata</italic>, an experiment was conducted during <italic>spring</italic> 2012 under field conditions. The ten treatments comprised two seaweed saps (K-sap & G-sap), four concentrations of each sap (2.5, 5, 10 and 15%), 7.5% of K-sap + 50% RDF (recommended dose of fertilizers) and control. The highest grain yield of 557 kg ha<sup>−1</sup> was harnessed due to two foliar applications of 10% K-sap + RDF. Increase in yield due to K-sap ranged between 29.32 to 33.81% while due to G-sap it was 25.74 to 26.15%. Foliar application of K-sap influenced the number and dry weight of root nodules at flowering. Application of seaweed saps also enhanced quality of grains in terms of protein, P and K content.


2016 ◽  
Author(s):  
Brian A. Nosek

Beliefs help humans make sense of the world, allowing us to understand our past and present and to predict and control our future. Our most elaborate beliefs are explanations of ourselves — who we are, what we are like and why we do the things we do. Forty years of psychological research reveal that humans are superb at generating explanations for their behavior but not accurate explanations. Self-explanations appear to say more about human capacity for telling a good story than the quality of self-insight. But identifying and giving up false beliefs is not so simple. Like possessions, we hold on to beliefs about ourselves long past their usefulness.


MicroRNA ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 41-48
Author(s):  
Supat Chamnanchanunt ◽  
Saovaros Svasti ◽  
Suthat Fucharoen ◽  
Tsukuru Umemura

Neglected Tropical Diseases (NTDs) are a common health problem and require an efficient campaign to be eradicated from tropical countries. Almost a million people die of NTDs every year in the world, and almost forty percent of the patients are under 20 years. Mass Drug Administration (MDA) is an effective tool for eradication of this health condition. However, a monitoring system is required to evaluate treatment-response and early detection of the re-emerging NTD. The relevance of current tests depends on good quality of the specimen. Thus, new molecular methods with high sensitivity and specificity are required. In this review, we focus on microRNAs (miRNAs) as biomarkers of NTDs through a narrative review on human research. We searched for reliable search engines using a systematical literature review algorithm and included studies that fit the criterion. Five NTDs (lymphatic filariasis, onchocerciasis, schistosomiasis, soil-transmitted helminthiases, and trachoma) were set as our target diseases. Later on, the data were extracted and classified as monitoring response and early detection. Four miRNAs were studied in filariasis as a monitoring response. There were 12 miRNAs related to onchocerciasis infection, and 6 miRNAs with schistosomiasis infection. Six miRNAs showed a link to soil-transmitted helminths. Only 3 miRNAs correlated with trachoma infection. In conclusion, circulating miR is a less invasive and promising approach to evaluate NTDs. Further field study may translate those candidate miRs to clinical application of the prevention and control of NTDs.


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