A5074824573- Wheat and Barley Genetics and Pathology
- Genetics and Plant Breeding
- Crop Yield and Soil Fertility
- Genetic Mapping and Diversity in Plants and Animals
- Genetically Modified Organisms Research
- Bioenergy crop production and management
- Plant tissue culture and regeneration
- Spectroscopy and Chemometric Analyses
- Weed Control and Herbicide Applications
- Allelopathy and phytotoxic interactions
- Plant Genetic and Mutation Studies
- Stress and Burnout Research
- Irrigation Practices and Water Management
- Horticultural and Viticultural Research
- Agricultural Productivity and Crop Improvement
- Forest Insect Ecology and Management
- Health and Medical Education
- Leaf Properties and Growth Measurement
- Remote Sensing in Agriculture
- Insect and Pesticide Research
- Rabbits: Nutrition, Reproduction, Health
- Food composition and properties
- Plant Molecular Biology Research
- Sugarcane Cultivation and Processing
- Sunflower and Safflower Cultivation
National University of Northwestern Buenos Aires
2016-2025
Consejo Nacional de Investigaciones Científicas y Técnicas
2013-2025
National Agricultural Technology Institute
2015-2025
Agencia Nacional de Promoción de la Investigación, el Desarrollo Tecnológico y la Innovación
2024
Instituto Nacional de Tecnologia
2024
Centro Científico Tecnológico - San Juan
2015
University of Buenos Aires
2001-2008
Instituto de Fisiología Vegetal
2003
Abstract Key message Here, we provide an updated set of guidelines for naming genes in wheat that has been endorsed by the research community. The last decade seen a proliferation genomic resources wheat, including reference- and pan-genome assemblies with gene annotations, which new opportunities to detect, characterise, describe influence traits interest. expansion genetic information supported growth community catalysed strong interest control agronomically important traits, such as...
Further improvements to wheat yield potential will be essential meet future food demand. As is related the number of fertile florets and grains, an understanding basis their generation instrumental raising yield. Based on (i) a strong positive association between or grains spike dry weight at anthesis; (ii) finding that floret death occurs when spikes grow maximum rate, it was always assumed survival depends growth spike. However, this assumption recently questioned, suggesting assimilates...
The wheat spikelet meristem differentiates into up to 12 floret primordia, but many of them fail reach the fertile stage at anthesis. We combined microarray, biochemical and anatomical studies investigate development in plants grown field under short or long days (short extended with low-fluence light) after all spikelets had already differentiated. Long accelerated spike greening, expression genes involved photosynthesis, photoprotection carbohydrate metabolism. These changes started while...
Abstract Further improvements in wheat yields are critical, for which increases grain number would be required. In the recent past, higher was achieved through increased growth of juvenile spikes before anthesis, due to reduction stem growth. As current cultivars have already an optimum height, alternatives must identified further increasing number. One them is fruiting efficiency (grains set per unit spike dry weight at anthesis). Fruiting final outcome fate floret development and...
Abstract To accelerate genetic gains in breeding, physiological trait (PT) characterization of candidate parents can help make more strategic crosses, increasing the probability accumulating favorable alleles compared to crossing relatively uncharacterized lines. In this study, crosses were designed complement “source” with “sink” traits, where at least one parent was selected for expression biomass and/or radiation use efficiency—source—and other sink-related traits like harvest-index,...
HaHB4 is a sunflower transcription factor belonging to the homeodomain-leucine zipper I family whose ectopic expression in Arabidopsis triggers drought tolerance. The use of PCR clone coding sequence for wheat transformation caused unprogrammed mutations producing subtle differences its activation ability yeast. Transgenic plants carrying mutated version were tested 37 field experiments. A selected transgenic line yielded 6% more (P<0.001) and had 9.4% larger water efficiency (P<0.02) than...
ABSTRACT The identification of physiological traits that determine grain number (and yield) in modern cultivars, and the possible tradeoffs among them, may help to detect promising for breeding increase yield potential. High‐yielding Argentinean wheat ( Triticum aestivum L.) cultivars were grown under irrigated high‐input conditions during two seasons study (i) m −2 (GN) as a result stover biomass at harvest (SH) index (HI); (ii) spike dry weight anthesis (SDW ; g ) fertility (SFI; per gram...
Wheat breeding has improved yield potential increasing floret survival through higher dry matter partitioning to the spikes during stem elongation phase (from terminal spikelet initiation anthesis). We studied of primodia in different positions along spike relation dynamics growth, when was altered by photoperiod and shading treatments applied phase. The cultivar Buck Manantial exposed (1) NP+0 un-shaded (natural incoming radiation growing season), (2) shaded but only 33% radiation), (3)...
Abstract While numerous wheat phenology prediction models are available, most of them constrained to using variety-dependent coefficients. The overarching objective this study was calibrate a gene-based model predict heading date that allows breeders select specific gene combinations would head within the optimal window for given environment independently varietal genetic background. A dataset with total 49 Argentine cultivars and two recombinant inbred lines chosen cover wide range allelic...
Increasing duration of stem elongation by exposure to short photoperiod would result in higher spike dry weight at anthesis, which is positively associated with the number fertile florets and grains wheat. However, it not easy determine whether effects on are only mediated assimilate supply growing when variation attained treatments. The aim this study was may be direct, that is, supply, comparing magnitude those shading canopy. Spike anthesis changed through factorial combination different...
ABSTRACT Improving wheat ( Triticum aestivum L.) yield potential via higher grain number per unit area (GN) may reduce average weight and consequently the increment would be low. Thirty‐nine high‐yielding modern cultivars differing in spike fruiting efficiency (FE) (number of grains gram no‐grain spike) were grown under conditions during two temperature‐contrasting years to study level source limitation filling rank main physiological determinants (PGW) actual weight. The response a 100%...
Research, production, and use of genetically modified (GM) crops have split the world between supporters opponents. Up to now, this technology has been limited control weeds pests, whereas second generation GM is expected assist farmers in abiotic stress tolerance or improved nutritional features. Aiming analyze subject holistically, presentation we address an advanced for drought-tolerant crops, upscaling from molecular details obtained laboratory extensive network field trials as well...
Lengthening the pre-anthesis period of stem elongation (or late-reproductive phase, LRP) through altering photoperiod sensitivity has been suggested as a potential means to increase number fertile florets at anthesis (NFF) in wheat. However, little is known about effects that Ppd-1 genes modulating plant response may have on reproductive development. Here, five genotypes with either sensitive (b) or insensitive (a) alleles were grown chambers under contrasting photoperiods (12 h 16 h) assess...