Avena Sativa
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2020
(FIVE YEARS 575)

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48
(FIVE YEARS 15)

Author(s):  
Akihito Yokosuka ◽  
Keita Ishihara ◽  
Tsuyoshi Yamada ◽  
Tomoki Iguchi ◽  
Yoshihiro Mimaki

2021 ◽  
Vol 7 (10) ◽  
pp. 3041-3053
Author(s):  
Daniele Buraen Moreira ◽  
Taiala de Jesus Dias ◽  
Vagner da Costa Rocha
Keyword(s):  

O presente trabalho objetivou o conhecimento do teor de cinzas e umidade presente em duas distintas marcas de aveias e uma de amido de milho, e a interferência deste na saúde do indivíduo.  A preferência por esses alimentos, se deu pelo fato deles apresentarem apenas um mineral na sua composição, essa prerrogativa garante a precisão no resultado. A aveia (Avena sativa L.) A aveia é uma espécie de gramínea anual pertencente à família Poaceae e gênero Avena. Embora existam muitas espécies, as principais cultivadas são a aveia branca (Avena sativa L.), a aveia amarela (Avena byzantina C. Koch. Essa pesquisa foi realizada no Laboratório de Química da Universidade Salvador, foram escolhidas: uma amostra de amido de milho e duas amostras distintas de aveia. O processo de testagem foi realizado em amostras de matéria seca, elas foram identificadas e alocadas para incineração na mufla a 600 ºC por 6 horas, esse mecanismo possibilitou a queima da matéria orgânica presente nas amostras. A partir dos dados analisados, foi possível perceber que os teores de cinzas e umidades das amostras não tinham compatibilidade com os dados apresentados nos rótulos e nas análises, mostrando mais uma vez que, nem sempre existe veracidade das informações prestadas ao consumidor implicando assim em um baixo valor nutricional, e consequentemente danos à saúde do consumidor.


Plants ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2462
Author(s):  
Michaela Havrlentová ◽  
Katarína Ondreičková ◽  
Peter Hozlár ◽  
Veronika Gregusová ◽  
Daniel Mihálik ◽  
...  

An evaluation of polymorphism at the microsatellite loci was applied in distinguishing 85 oat (Avena sativa L.) genotypes selected from the collection of genetic resources. The set of genotypes included oats with white, yellow, and brown seeds as well as a subgroup of naked oat (Avena sativa var. nuda Koern). Variation at these loci was used to form potential heterotic groups potentially used in the oat breeding program. Seven from 20 analyzed microsatellite loci revealed polymorphism. Altogether, 35 microsatellite alleles were detected (2–10 per locus). Polymorphic patterns completely differentiated all genotypes within the subgroups of white, brown, and naked oats, respectively. Only within the greatest subgroup of yellow genotypes, four pairs of genotypes remained unseparated. Genetic differentiation between the oat subgroups allowed the formation of seven potential heterotic groups using the STRUCTURE analysis. The overall value of the fixation index (Fst) suggested a high genetic differentiation between the subgroups and validated a heterotic grouping. This approach can be implemented as a simple predictor of heterosis in parental crosses prior to extensive field testing or development and implementation of more accurate genomic selection.


2021 ◽  
Vol 5 ◽  
Author(s):  
Karen Enciso ◽  
Javier Castillo ◽  
Luis Orlando Albarracín ◽  
Luis Fernando Campuzano ◽  
Mauricio Sotelo ◽  
...  

In the Colombian high-altitude tropics (2,200–3,000 m.a.s.l.), Kikuyu grass (Cenchrus clandestinus) is the main feed source for the dairy system. This grass species has good characteristics regarding adaptability and productivity, but is affected by frost, grass bugs (Collaria spp.) and precipitation-related production seasonality. Forage deficits might thus be a problem at several times in a year. As a strategy to maintain production stable, dairy farmers use commercial feed concentrates increasing their production costs. Agrosavia, as a response to this, started in 2005 with the evaluation and selection of new forage species for the Colombian high-altitude tropics. The oat Avena sativa AV25-T was identified as promising alternative to supply the requirements of dry matter in times of deficit and released as cultivar in 2018 under the name Altoandina. The objective of this study was to evaluate the economic viability of Altoandina in Colombia's high-altitude dairy systems. Altoandina (Aa) was provided as silage in two different diets: 35%Aa−65% Kikuyu (Yellow Diet) and 65%Aa-35% Kikuyu (Red Diet). The diet for comparison was traditional grazing with 100% Kikuyu grass (Blue Diet). All diets were supplemented with 6kg commercial feed concentrate, 0.5 kg cotton seeds and 0.5 kg Alfalfa meal per cow/day, respectively. To estimate economic indicators, we used a cashflow model and risk assessment under a Monte Carlo simulation model. Including Altoandina incremented productivity per hectare by 82.3 and 220% in the Yellow and Red Diets, respectively. According to the results of our economic model, the Yellow Diet is the best alternative. Its average Net Present Value (NPV) was superior in >80% and showed a lower variability. The indicators Value at Risk (VaR) and probability (NPV < 0) show the Yellow Diet to have the lowest risk for economic loss under different yield/market scenarios. The Yellow Diet also has the lowest unit production costs and uncertainty of productive parameters. According to our findings, supplementation with Altoandina at 35%, i.e., during critical times, has high potential to improve efficiency and profitability. This information is key for the decision-making process of dairy farmers on whether to adopt this technology.


2021 ◽  
pp. 44508
Author(s):  
Luis Fernando Campuzano-Duque ◽  
Edwin Castro-Rincón ◽  
Javier Castillo-Sierra ◽  
Daniel Torres-Cuesta ◽  
David Nieto-Sierra ◽  
...  
Keyword(s):  

Introducción. Utilizar ensilaje de avena forrajera (Avena sativa L.) en la ganadería de leche en épocas deficitarias de alimento, permite mitigar pérdidas de biomasa por sequía en el trópico alto colombiano. Objetivos. 1) Determinar el rendimiento en materia seca (RMS) de cinco genotipos de avena forrajera y la estabilidad fenotípica y la calidad bromatológica de su ensilaje, y 2) evaluar la inclusión de ensilaje del genotipo AV25-T en dietas para ganado lechero. Materiales y métodos. Se realizaron en el trópico alto colombiano dos experimentos: 1) prueba de evaluación agronómica (octubre de 2016 a febrero de 2017) en un diseño de bloques completos al azar con cinco genotipos, ocho localidades y cuatro repeticiones; se determinó el rendimiento en materia seca (RMS) y en ensilaje los contenidos de proteína, fibra en detergente neutro (FDN) y nutrientes totales digestibles (NTD) y 2) estudio de respuesta animal (enero 2018) con la inclusión del genotipo AV25-T en dietas, en un diseño Crossover simple con dos factores: animal (5) y dietas (3); las dietas fueron: D1: solo pradera; D2: 35 % de ensilaje AV25-T + pastoreo y D3: 65 % de ensilaje AV25-T + pastoreo. Se determinó en la leche la producción, la proteína, la grasa y los sólidos totales, y en el animal el cambio de peso. Resultados. AV25-T presentó adaptación con el mayor RMS. La inclusión de ensilaje de AV25-T en la dieta animal, mostró un cambio significativo en el peso del animal (0,1 y 0,25 kg con D2 y D3), el rendimiento de leche (27,2 - 29,7 L/vaca/día con D3 y D2) y el contenido de grasa (3,2 - 3,9 % con D3 y D2), sin detrimento en proteína y sólidos totales. Conclusión. El uso del ensilaje de avena forrajera AV25-T permitió en vacas lecheras Holstein incrementos en el peso animal, el rendimiento de leche y el contenido grasa sin afectar la proteína y los sólidos totales.


Author(s):  
Mohammad Ihsan ◽  
Mohammad Nisar ◽  
Nausheen Nazir ◽  
Muhammad Zahoor ◽  
Atif Ali Khan Khalil ◽  
...  

2021 ◽  
Vol 923 (1) ◽  
pp. 012086
Author(s):  
Kadhm K.A. Alabdalsayid ◽  
Lamiaa M.S. Al-Freeh

Abstract A field experiment was conducted during the agricultural season 2020-2021 at the Agricultural Research Station/College of Agriculture/University of Basra (Al-Haritha site) (20 km from the center of Basra Governorate). To study the effect of four levels of phosphate fertilizer (P0=0, P1=50, P2=100 and P3=150 Kg ha-1) and four concentrations of iron spray(F0=0, F1=1000, F2=2000 and F3=3000 PPM). on the growth, yield and quality of oats (Avena sativa L.) Janzania cultivar the experiment was carried out in a split-plot arrangementusinga randomized complete block design (RCBD) with three replications. Phosphate fertilizer levels occupied the main plot, and iron concentrations occupied the sub-plots. The results showed that the P3 level was significantly superior in all the studied traits, which gave the highest grain yield of 6.13 mcg ha-0. The concentration F2 was significantly superior in all the studied traits, which gave the highest grain yield of 5.29 mcg ha-0. The interaction also showed the superiority of the combination P3*F2 in plant height, flag leaf area, number of branches and grain yield, while the interaction was not significant in the trait of leaf area index and Net Assimilation rate and crop growth rate


2021 ◽  
Vol 47 (4) ◽  
pp. 677-688
Author(s):  
Paulo Sergio F. Ferreira ◽  
Nancy Barreto-Triana ◽  
Pablo Andrés Osorio-Mejía ◽  
Fagner de Souza ◽  
Luciano Santana Fiuza Ferreira

The bug Cynodonmiris corpoicanus inhabit the Cundiboyacense High Plateau in Colombia feeding on grasses (Poaceae). The authors carry out their life cycle in greenhouse and characterize the damage on oat (Avena sativa) leaves. The duration egg – adult last 49.3 days and undergo five nymphal stages. The morphometric study was conducted by principal component analysis (PCA) and 2.03 PAST software. This method let to determine measures for nymphal stages separation, furthermore we consider coloration, morphology and morphometric description. A key for nymphal stages determination was developed by morphometric and morphology diagnostic characters. Also, we include illustrations of the C. corpoicanus nymphal stages.


2021 ◽  
Vol 32 (5) ◽  
pp. e21339
Author(s):  
Alberto Arias A. ◽  
Juancarlos Cruz L. ◽  
Cesar Pantoja A. ◽  
José Contreras P. ◽  
Melina Lopez R.
Keyword(s):  

El estudio se realizó en el Centro Experimental Alpaicayán, Universidad Nacional Daniel Alcides Carrión, Pasco, Perú, con el objetivo fue determinar la producción forrajera y calidad nutricional de la avena asociada con vicia. Se determinó la producción forrajera en contenidos de materia verde (MV), materia seca (MS) y el porcentaje de materia seca (%MS). Para el valor nutricional se determinaron la proteína cruda (%PC), fibra detergente neutro (%FDN), fibra detergente ácido (%FDA), calcio (%Ca) y fósforo (%P). Los tratamientos fueron T-1 (avena criolla, 150 kg/ha), T-2 (avena Mantaro 15, 110 kg/ha), T- 3 (avena Mantaro 15 más vicia, 110 y 30 kg/ha) y T-4 (avena criolla más vicia, 150 y 30 kg/ha). La producción de MV indicó que T-1 y T-4 fue similar, pero significativamente superior a T-2 y T-3 (p<0.05); sin embargo, sin diferencias significativas en producción de MS entre tratamientos. T-4 obtuvo mayor contenido de %PC, T-2 y T-4 presentaron los mayores rendimientos de %FDN y %FDA. T-4 presentó el mayor contenido de %P, en tanto que no hubo diferencias entre tratamientos para el contenido de %Ca. Se concluye que el tratamiento Mantaro 15 +vicia tiene una mejor producción forrajera y es de mejor calidad nutricional en referencia a los otros tratamientos.  


2021 ◽  
Vol 8 (4) ◽  
pp. 1187-1197
Author(s):  
Yüksel KAYA ◽  
Mevlüt AKÇURA
Keyword(s):  

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