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Mostrando ítems 21-40 de 49
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First report of spot lesion of wheat caused by Pyrenophora teres f. sp maculata observed in Argentina
(2019-08)Pyrenophora tritici-repentis, causal agent of tan spot, is the species commonly associated with leaf spotting symptoms on wheat (Triticum aestivum L.) worldwide and in Argentina. On the other hand, P. teres is a major ... -
First report of Xanthomonas prunicola causing bacterial leaf streaks on wheat in Argentina
(American Phytopathological Society, 2022-06-13)Since 2018, bacterial-like symptoms, such as leaf streaks were observed on wheat plants (Triticum aestivum L.) in Córdoba province in Argentina, with 1 to 5% of disease incidence. Samples of wheat stem and spike collected ... -
Fruiting efficiency : an alternative trait to further rise wheat yield
(2015-07)Further improvements in wheat yields are critical, for which increases in grain number would be required. In the recent past, higher grain number was achieved through increased growth of the juvenile spikes before anthesis, ... -
Fusariosis de la espiga : incidencia y severidad en distintos cultivares de trigo según fechas de siembra. Oliveros, campaña 2016-2017
(EEA Oliveros, 2017)El objetivo del presente trabajo fue caracterizar el comportamiento de algunos cultivares comerciales de trigo frente a la fusariosis de la espiga según fechas de siembra. -
Geographical distribution and first molecular detection of an Emaravirus, High Plains wheat mosaic virus, in Argentina
(Springer, 2017-11)High Plains wheat mosaic virus (HPWMoV) has recently been assigned to genus Emaravirus and is the causal agent of High Plains disease. In this work the geographical distribution and first molecular detection of HPWMoV in ... -
Has climate change opened new opportunities for wheat cropping in Argentina?
(Springer, 2013-03)As a result of climate change, and in particular rainfall changes, agricultural production is likely to change across the globe. Until now most research has focused on areas which will become unsustainable for agricultural ... -
Identificación del agente causal de infección en nudo del trigo
(EEA Reconquista, 2017-05)El trigo que se produce en la región noreste de santa Fe, tiene a la roya de la hoja como principal enfermedad foliar. Excepcionalmente, suelen observarse enfermedades emergentes, influenciadas entre otros factores, por ... -
Identification and characterization of Rht25, a locus on chromosome arm 6AS affecting wheat plant height, heading time, and spike development
(2018)Understanding genes regulating wheat plant height is important to optimize harvest index and maximize grain yield. In modern wheat varieties grown under high-input conditions, the gibberellin-insensitive semi-dwarfing ... -
Increasing grain yield in bread wheat (Triticum aestivum) by selection for high spike fertility index
(Wiley, 2021-06-28)Spike fertility index (SF) has been proposed as a promising selection criterion for increasing grain yield (GY) in bread wheat. Here, changes in GY and related traits after simulated selection (10% intensity) for high SF ... -
Influencia de la textura del grano de trigo (Triticum aestivum L.) sobre la calidad industrial de galletitas dulces y crackers
(2016-11-25)El sistema de comercialización de trigos establece una clasificación de los trigos hexaploides (Triticum aestivum L.) basada en la textura del endosperma que junto con la fuerza del gluten determinan sus potenciales usos ... -
Interacción genotipo por ambiente sobre caracteres de calidad comercial e industrial en trigo pan (Triticum aestivum L.)
(Facultad de Agronomía, Universidad de Buenos Aires, 2011-08)El genotipo (G), el ambiente (A) y la interacción G x A pueden influir de manera diferente sobre las característica que definen la calidad comercial e industrial de trigo pan. Los objetivos de esta tesis fueron: 1) ... -
Low temperature differentially affects tillering in spring and winter wheat in association with changes in plant carbon status
(Wiley, 2015-03)The higher tillering potential of winter wheat cultivars as compared to spring ones has been attributed to an earlier tillering onset in the former. Tillering in grasses is known to depend on temperature and light environment, ... -
Mapping a region within the 1RS.1BL translocation in common wheat affecting grain yield and canopy water status
(Springer, 2014-12)The translocation of the short arm of rye (Secale cereale L.) chromosome one (1RS) onto wheat (Triticum aestivum L.) chromosome 1B (1RS.1BL) is used in wheat breeding programs worldwide due to its positive effect on yield, ... -
Mapping causal mutations by exome sequencing in a wheat TILLING population: a tall mutant case study
(Springer, 2018-04)Forward genetic screens of induced mutant plant populations are powerful tools to identify genes underlying phenotypes of interest. Using traditional techniques, mapping causative mutations from forward screens is a lengthy, ... -
Mapping QTL for resistance to new virulent races of wheat stripe rust from two Argentinean wheat cultivars
(Crop Science Society of America, 2018)During the last two decades, new virulent and aggressive races of Puccinia striiformis Westend. f. sp. tritici (Pst) have spread worldwide, causing devastating epidemics and prompting the search for new sources of resistance ... -
Mejores prácticas de manejo de la fertilización de trigo : dos experiencias de INTA 9 de Julio
(2013-03)Las mejores prácticas de manejo (MPM) de uso de fertilizantes involucran aplicar la fuente de nutriente correcta, en la dosis, el momento y el lugar correctos. Estas decisiones son críticas para alcanzar una óptima eficiencia ... -
MITE Tracker : an accurate approach to identify miniature inverted-repeat transposable elements in large genomes
(BioMed Central, 2018)Background: Miniature inverted-repeat transposable elements (MITEs) are short, non-autonomous class II transposable elements present in a high number of conserved copies in eukaryote genomes. An accurate identification ... -
New insight into the wheat chromosome 4 D structure and virtual gene order, relead by survey pyrosequencing
(2015)Survey sequencing of the bread wheat (Triticum aestivum L.) genome (AABBDD) has been approached through different strategies delivering important information. However, the current wheat sequence knowledge is not complete. ... -
¿Nueva problemática sanitaria asociada a bacteria fitopatógena gram-positiva en trigo? [resumen]
(Sociedad Argentina de Biología, 2020-09-09)A nivel mundial, se han descripto numerosas bacterias fitopatógenas en trigo (Triticum aestivum L.) responsables de ocasionar mermas en el rendimiento de este cultivo. Si bien la mayoría de ellas pertenecen a géneros de ... -
Occurrence and distribution of soil Fusarium species under wheat crop in zero tillage
(2013)The presence of Fusarium species in cultivated soils is commonly associated with plant debris and plant roots. Fusarium species are also soil saprophytes. The aim of this study was to examine the occurrence and distribution ...