Results 1 to 10 of about 922 (87)

Mercury Accumulation in Commercial Varieties of Oryza sativa L. Cultivated in Soils of La Mojana Region, Colombia [PDF]

Toxics, 2021
The Hg accumulation in different commercial varieties of Oryzasativa L. was evaluated in the region of La Mojana, Colombia, where rice cultivation has become the staple food of the population living in this area. The varieties studied were Fedearroz-473 (
Germán Enamorado-Montes, Brayan Reino-Causil, Iván Urango-Cardenas, Siday Marrugo-Madrid, José Marrugo-Negrete   +4 more
doaj   +2 more sources

Foliar Growth Regulator Sprays Induced Tolerance to Combined Heat Stress by Enhancing Physiological and Biochemical Responses in Rice [PDF]

Frontiers in Plant Science, 2021
Rice yield has decreased due to climate variability and change in Colombia. Plant growth regulators have been used as a strategy to mitigate heat stress in different crops. Therefore, this study aimed to evaluate the effect of foliar applications of four
Alvaro Daniel Pantoja-Benavides, Gabriel Garces-Varon, Hermann Restrepo-Díaz   +2 more
doaj   +2 more sources

Identification of new sources of resistance to RHBV- rice hoja blanca virus [PDF]

Acta Agronómica, 2018
With the aim to find new sources of resistance to rice hoja blanca (white leaf) disease, transmitted by the insect Tagosodes orizicolus, 660 genotypes were evaluated under greenhouse and field conditions.
Maribel Cruz-Gallego, Maria Camila Rebolledo, Juan B. Cuasquer, Daniel Felipe Cruz-Galvis, Alexandra Lorena Peña-Fernández, Constanza Quintero, Elkin Alexander Silva-Córdoba, María Fernanda Álvarez-V, Sebastián Jojoa-Cruz, Mathias Lorieux, Jeffrey J Stuart, Fernando José Correa-Victoria   +11 more
doaj   +7 more sources

Conformationally Restricted Peptides from Rice Proteins Elicit Antibodies That Recognize the Corresponding Native Protein in ELISA Assays [PDF]

Molecules, 2018
The rice hoja blanca virus (RHBV), transmitted by the planthopper insect Tagosodes orizicolus, is a disease that attacks rice and generates significant production losses in Colombia.
Nubia F. Barrera, Luz M. Melgarejo, Maribel Cruz-Gallego, Lina Jimena Cortés, Fanny Guzmán, Julio C. Calvo   +5 more
doaj   +2 more sources

Revealing the role of the AGO4 gene against rice hoja blanca virus: from transformation to protein structure [PDF]

Frontiers in Plant Science
Rice hoja blanca virus (RHBV), transmitted by the insect vector Tagosodes orizicolus, poses a significant threat to rice cultivation. Here, we use CRISPR/Cas9 technology to produce specific mutations in the AGO4 gene of Oryza sativa, using the Fedearroz ...
Johan Ñañez, Sandra Valdes, Maribel Cruz Gallego, Maribel Cruz Gallego, Maria Camila Rebolledo, Maria Camila Rebolledo, Mathias Lorieux, Mathias Lorieux, Maria Fernanda Alvarez, Paul Chavarriaga   +9 more
doaj   +2 more sources

Normalized difference vegetation index for rice management in El Espinal, Colombia [PDF]

Dyna, 2018
Aerial images and the Normalized Difference Vegetation Index (NDVI) of the stage after panicle initiation were evaluated as tools that help large-scale rice monitoring and decision-making that favors crop profitability. NDVI was used to identify problems
Mauricio Gonzalez Betancourt, Zaira Liceth Mayorga-Ruíz   +1 more
doaj   +4 more sources

Efecto de los elementos menores en la calidad molinera del arroz (Oryza sativa L.) variedad F-2000

Mutis, 2021
Esta investigación evaluó la aplicación de fertilizantes que contenían elementos menores como mejoradores de la calidad molinera del arroz (Oryza sativa L.) en un suelo clasificado como Typic Xerofluvents. Se valoró un área de 2,5 ha, divididas en cuatro
José Alirio Hernández Quiñónez , Seir Antonio Salazar Mercado, Edgar Alfonso Rodríguez Araújo   +2 more
doaj   +1 more source

Physiological response of on rice cultivars in different sowing times in Córdoba, Colombia

Temas Agrarios, 2017
A greater efficiency of rice cultivation is based on knowing its characteristics in terms of growth and yield according to the environmental supply. This research aimed at determining the dry mass (DM) g, leaf area (LA) cm2, absolute growth rate (AGR) g ...
José V. Villalba, Alfredo J. Jarma, Enrique M. Combatt   +2 more
doaj   +1 more source

Modelación del arroz en Latinoamérica: Estado del arte y base de datos para parametrización [PDF]

, 2018
El arroz en Latinoamérica y el Caribe (LAC) es un cultivo de gran importancia social y económica. El consumo de arroz en LAC ha aumentado significativamente durante los últimos años, registrando un promedio actual de 30 kg persona-1 año-1.
Graterol-Matute, Eduardo (ed.), Heinemann, Alexandre (ed.), Hernández-Varela, Camila Andrea (ed.), Petro-Páez, Eliel Enrique (ed.), Pinzon, Sara (ed.), Ramirez-Villegas, Julian (ed.), Rebolledo, Maria Camila (ed.), Rodríguez-Baide, Joysee Mariela (ed.), Rodríguez-Espinoza, Jeferson (ed.), Van Den Berg, Maurits (ed.)   +9 more
core   +1 more source

Optimization of an in vitro regeneration system for colombian indica rice varieties

Revista Colombiana de Biotecnología, 2014
Título en español: Optimization of an in vitro regeneration system for colombian indica rice varieties Título en ingles: Optimización de un sistema in vitro de regeneración para variedades colombianas de arroz indica Título breve sugerido ...
Iván Darío Barbosa Cepeda, Alejandro Chaparro Giraldo   +1 more
doaj   +1 more source