A5037393480- Crop Yield and Soil Fertility
- Genetics and Plant Breeding
- Rice Cultivation and Yield Improvement
- Bioenergy crop production and management
- Wheat and Barley Genetics and Pathology
- Genetic Mapping and Diversity in Plants and Animals
- Soybean genetics and cultivation
- Peanut Plant Research Studies
- Agronomic Practices and Intercropping Systems
- Plant Genetic and Mutation Studies
- Plant responses to elevated CO2
- Plant nutrient uptake and metabolism
- Greenhouse Technology and Climate Control
- Leaf Properties and Growth Measurement
- Remote Sensing in Agriculture
- Climate change impacts on agriculture
- Plant Stress Responses and Tolerance
- Plant tissue culture and regeneration
- Genetically Modified Organisms Research
- Plant and soil sciences
- Plant Reproductive Biology
- Spectroscopy and Chemometric Analyses
- Plant Molecular Biology Research
- Plant responses to water stress
- Latin American rural development
University of Buenos Aires
2016-2025
Consejo Nacional de Investigaciones Científicas y Técnicas
2016-2025
Centro Científico Tecnológico - San Juan
2016-2024
National Agricultural Technology Institute
2017-2023
Agricultural Plant Physiology and Ecology Research Institute
2007-2016
Instituto de Fisiología Vegetal
2011-2016
In maize ( Zea mays L.), the negative effects of increased stand densities on final kernel weight (KW) are attributed to reductions in effective grain‐filling period, and not growth rate. This suggests that competition for assimilates among kernels only occurs at last stages grain filling. To test this hypothesis, two commercial hybrids different KW were grown (3 9 plants m −2 ) during 1998 1999 2000. Pollination treatments performed order modify number per plant (KNP) obtain a range...
Heat stress around flowering has negative effects on maize ( Zea mays L.) grain yield. Most research this topic focused the response of pollen viability and pollination constraints, little is known about relative to heat plant yield (PGY) components [kernel number per (KNP) individual kernel weight (KW)] physiological determinants [light interception efficiency (e i ), radiation use (RUE), harvest index (HI)]. Field experiments were performed study traits contrasting air temperature regimes...
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 In commercial crops, maize (Zea mays) plants are typically grown at a larger distance between rows (70 cm) than within the same row (16–23 cm). This rectangular arrangement creates heterogeneous environment in which receive higher red light (R) to far-red (FR) ratios from interrow spaces. field hybrid Dekalb 696 (DK696) showed an increased proportion of leaves toward spaces, whereas experimental 980 (Exp980) retained random leaf orientation. Mirrors reflecting FR were placed close...
Abstract Shoot dry weight of maize ( Zea mays L.) depends on the amount photosynthetically active radiation intercepted by crop (IPAR). The present work was conducted to analyze variation in shoot production and its partitioning reproductive sinks when seasonal changes temperature solar occur during growing cycle crop. Four commercial hybrids were grown at 8 plants m −2 four sowing dates (20 Aug., 20 Sept., Oct., Nov.) Rojas (34° 08' S, 60° 59' W), Argentina, a silty clay loam soil (Typic...
Maize ( Zea mays L.) grain yield increase in narrow rows (0.35–0.50 m) may be related to the improvement of light interception around silking, but percentages are generally lower than those interception, suggesting a efficiency convert amount intercepted photosynthetic active radiation (IPAR) into aboveground phytomass. We analyzed effects plant population and row spacing on its components (kernel number kernel weight) underlying processes, IPAR silking during effective filling period, use...