984 research outputs found
Levantamento do potencial de comercialização de produtos orgânicos para o estado de Mato Grosso do Sul.
Na avaliação sobre o potencial de mercado consumidor de produtos orgânicos em Campo Grande, MS,conclui-se que a maioria das mulheres entrevistadas afirmou conhecer o produto orgânico, porém, apenas aproximadamente a metade realmente sabe seu significado. Cerca de 52% delas pagaria mais caro por esse produto e estariam dispostas a procurar local próprio de comercialização (63,23%). Após esclarecimentos sobre os benefícios do produto orgânico, quase a totalidade (99,35%) optaria por estes produtos
Doses de cálcio, rendimento e qualidade de feijão vagem
Calcium ions (Ca) play an important role in many biochemical processes, delaying senescence and controlling physiological disorders in fruits and vegetables. The objective of this experiment was to analyze the effect of increasing calcium concentrations in snap beans. Snap bean cultivar UEL 1 was sown in sand containing 80 mg L-1 of calcium supplemented with nutrient solution, plus calcium at different contents: 0, 75, 150 and 300 mg L-1. Ca was mainly recovered in the shoots, followed by roots and pods. Calcium concentrations in the pods were 130, 259, 349 and 515 mg 100 g-1dry matter on a dry weight basis, in relation to the enhancement of calcium contents in the nutrient solution, respectively. A negative relationship between nitrogen content in the pods and calcium concentration in the nutrient solution was observed. Pods from plants grown in a solution without Ca presented necrosis in their apical region. Dieback of roots, shoots and young leaves also occurred under low calcium supply. Dry matter of pods, roots and shoots, number of pods per plant, pod weight and pod length increased proportionally to calcium concentration in solution. Increasing rates of calcium improved biomass production in snap bean cultivar UEL 1.Os íons cálcio apresentam importante papel em muitos processos bioquímicos, retardando a senescência e controlando desordens fisiológicas em frutas e hortaliças. O objetivo deste experimento foi analisar o efeito de concentrações crescentes de cálcio em feijão vagem. A cultivar UEL 1 foi semeada em areia grossa contendo 80 mg L-1 de cálcio suplementada com solução nutritiva, acrescida dos seguintes teores de cálcio 0, 75, 150 e 300 mg L-1. A maior concentração de cálcio foi observada na parte aérea (ramos + folhas), seguida das raízes e, por fim, as vagens. A quantidade de cálcio nas vagens foi de 130, 259, 349 e 515 mg 100 g-1 matéria seca, respectivamente da menor para a maior dose de cálcio aplicada. Observou-se relação negativa entre a concentração de nitrogênio nas vagens e o teor total absorvido em função do aumento na quantidade de cálcio da solução nutritiva. Plantas cultivadas em solução nutritiva isenta de cálcio, apresentaram necrose da porção apical das vagens e morte apical de raízes, ramos e folhas jovens. A quantidade de matéria seca de vagens, raízes e parte aérea, número de vagens por planta, massa de vagens e comprimento de vagens aumentou proporcionalmente à maior disponibilidade de cálcio na solução nutritiva aplicada. O cultivo em maiores doses de cálcio proporcionou aumento da biomassa produzida pelas plantas de feijão vagem cv. UEL 1
Test of electric conductivity on the assessment of physiological quality of crambe seeds(Crambe abyssinica Hochst)
The study aimed to assess present the effects of water volume and imbibition periods on the application of electric conductivity test on crambe seeds. We used crambe (Crambe abyssinica Hochst) seeds of 5 lots, FMS Brilhante cultivar, provided by the MS Foundation, from properties located in different locations of Mato Grosso do Sul State, produced on the 2012 harvest. We used randomized block designs with four replicates. For the characterization of the lots, we conducted germination tests and emergence speed index. Posteriorly, we performed the electric conductivity test, using 25ºC as imbibition temperature, four volumes of water (20mL, 30mL, 40mL and 50mL) and 5 imbibition periods (30, 60, 120, 240 e 360 minutes). We observed that the higher the volume the lower the quantity of electrolytes liberated by the seeds. The electric conductivity test was efficient in order to assess the vigor of crambe seeds. The volumes of 20 and 30mL, with imbibition period of 240 minutes, were the most favorable conditions in the conduction of our test.O presente estudo teve como objetivo avaliar os efeitos do volume de água e períodos de embebição na aplicação do teste de condutividade elétrica em sementes de crambe.. Foram utilizadas sementes de 5 lotes de crambe (Crambe abyssinica Hochst), cultivar FMS Brilhante fornecidos pela Fundação MS, oriundos de propriedades localizadas em diferentes locais do Estado de Mato Grosso do Sul, produzidas na safra 2012. Foi utilizando delineamento em blocos casualizados com quatro repetições. Foram feitos, teste de germinação e índice de velocidade de emergência para caracterização dos lotes. Posteriormente foi efetuada a condução do teste de condutividade elétrica utilizando 25ºC como temperatura de embebição, quatro volumes de água (20mL, 30mL, 40mL e 50mL) e 5 tempos de embebição (30, 60, 120, 240 e 360 minutos). Foi observado que quanto maior o volume, menor a quantidade de eletrólitos liberados pelas sementes. O teste de condutividade elétrica foi eficiente para avaliação do vigor de sementes de crambe. Os volumes de 20 e 30mL, com período de embebição 240 minutos, foi a condição mais favorável a realização deste teste.Este estudio tuvo como objetivo evaluar los efectos de volumen de agua y los períodos de imbibición en la aplicación de la prueba de conductividad eléctrica en semilla de crambe. Se utilizaron semillas de 5 lotes de crambe (Crambe abyssinica Hochst) cultivar FMS brillante proporcionados por la Fundación MS, provenientes de las granjas ubicadas en diferentes lugares del Estado de Mato Grosso do Sul, producidas en 2012. Fue utilizado diseño de bloques al azar con cuatro repeticiones. Se hicieron prueba de germinación e índice de velocidad de emergencia para la caracterización de los lotes. Posteriormente se efectuó la conducción de la prueba de conductividad eléctrica usando 25 °C como temperatura de imbibición, cuatro volúmenes de agua (20 ml, 30 ml, 40 ml y 50 ml) y 5 tiempos de imbibición (30, 60, 120, 240 y 360 minutos). Se observó que cuanto mayor el volumen, menor será la cantidad de electrolito liberado por la semilla. La prueba de conductividad eléctrica fue eficiente para la evaluación del vigor de las semillas de crambe. Los volúmenes de 20 a 30 ml, con tiempo de imbibición de 240 minutos, fue la condición más favorable para la realización de esta prueba
Study of the proteins in the defatted flour and protein concentrate of baru nuts (Dipteryx alata Vog)
EVALUATION OF ORGANIC FERTILIZERS ON CROP LETTUCE IN CAMPO GRANDE, MS
Objetivou-se investigar a eficiência de fertilizantes na cultura da alface em sistema orgânico, nas condições edafoclimáticas da região de Campo Grande, MS. As cultivares Verônica e Regina foram pulverizadas, aos 10 e 20 dias do transplante, com os fertilizantes orgânicos: Biofertilizante enriquecido (supermagro) a 1% e 3%, EM5 (produto comercial) a 0,1%; Microgeo (produto comercial) 3%, Extrato Pirolenhoso 0,2% e testemunha. Constatou-se que os produtos testados como fertilizantes nas cvs Verônica e Regina, não alteraram os valores de massa fresca, massa seca (%), teor de umidade nas cultivares avaliadas em relação à testemunha.This work aimed to evaluate the efficiency fertilizers on lettuce crop grown with organic system at environmental local conditions. The cultivars Verônica and Regina were sprayed at 10 and 20 days after planting, with organic biofertilizers: 1 and 3% enriched biofertilizer (supermagro); 0,1% EM5; 3% Microgeo; 0,2% pirolenhoso extract, and control (lettuce without application of any product). Fresh weight, dry matter (%) and moisture did not show difference among all treatments for the assayed cultivars
Increase in oil content and changes in quality of macauba mesocarp oil along storage
Macauba is an oleaginous palm species from Latin America. It is a rich source of vegetable oil with diverse benefits. However, there are several gaps in assuring post-harvest oil quality of the mesocarp. Thus, ripe fruits were stored at room temperature for 60 days before oil extraction to evaluate fruit and mesocarp oil quality attributes. Physical (decay incidence, water activity), biochemical (specific activity of lipase), physicochemical (acidity and peroxide indices, molar absorptivity at K232 and K270, oxidative stability, total carotene content and mesocarp colour) analyses were carried out. Results show that nonlinear sigmoid response was obtained for most of the parameters evaluated. Decaying reactions related to microorganism’s growth, free fatty acid release and oxidation took place along storage. However, the overall oil quality was in the acceptable limits up to 20 days of storage. It is much further than palm oil, the main source of oil in the world
Thermal properties of defatted meal, concentrate, and protein isolate of baru nuts (Dipteryx alata Vog.)
Advanced Virgo Plus: Future Perspectives
While completing the commissioning phase to prepare the Virgo interferometer for the next joint Observation Run (O4), the Virgo collaboration is also finalizing the design of the next upgrades to the detector to be employed in the following Observation Run (O5). The major upgrade will concern decreasing the thermal noise limit, which will imply using very large test masses and increased laser beam size. But this will not be the only upgrade to be implemented in the break between the O4 and O5 observation runs to increase the Virgo detector strain sensitivity. The paper will cover the challenges linked to this upgrade and implications on the detector's reach and observational potential, reflecting the talk given at 12th Cosmic Ray International Seminar - CRIS 2022 held in September 2022 in Napoli
Virgo Detector Characterization and Data Quality: results from the O3 run
The Advanced Virgo detector has contributed with its data to the rapid growth
of the number of detected gravitational-wave (GW) signals in the past few
years, alongside the two Advanced LIGO instruments. First during the last month
of the Observation Run 2 (O2) in August 2017 (with, most notably, the compact
binary mergers GW170814 and GW170817), and then during the full Observation Run
3 (O3): an 11-months data taking period, between April 2019 and March 2020,
that led to the addition of about 80 events to the catalog of transient GW
sources maintained by LIGO, Virgo and now KAGRA. These discoveries and the
manifold exploitation of the detected waveforms require an accurate
characterization of the quality of the data, such as continuous study and
monitoring of the detector noise sources. These activities, collectively named
{\em detector characterization and data quality} or {\em DetChar}, span the
whole workflow of the Virgo data, from the instrument front-end hardware to the
final analyses. They are described in details in the following article, with a
focus on the results achieved by the Virgo DetChar group during the O3 run.
Concurrently, a companion article describes the tools that have been used by
the Virgo DetChar group to perform this work.Comment: 57 pages, 18 figures. To be submitted to Class. and Quantum Grav.
This is the "Results" part of preprint arXiv:2205.01555 [gr-qc] which has
been split into two companion articles: one about the tools and methods, the
other about the analyses of the O3 Virgo dat
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