César López

César López
Universidad Nacional Lomas de Zamora | UNLZ · Facultad de Ciencias Agrarias

About

16
Publications
5,718
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371
Citations
Citations since 2016
0 Research Items
176 Citations
2016201720182019202020212022051015202530
2016201720182019202020212022051015202530
2016201720182019202020212022051015202530
2016201720182019202020212022051015202530
Introduction
Skills and Expertise
Additional affiliations
January 1991 - present
Universidad Nacional Lomas de Zamora
Position
  • Professor (Full)

Publications

Publications (16)
Article
Previous studies have documented that transgene introduction may alter the phenotypic expression of several traits (e.g., biomass production, grain yield). We hypothesized that genetic diversity could influence the phenotypic variation among hybrids of a same genetic background and also among plants of a hybrid. The objectives of this preliminary s...
Article
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Individual kernel weight is an important trait for maize yield determination. We have identified genomic regions controlling this trait by using the B73xMo17 population; however, the effect of genetic background on control of this complex trait and its physiological components is not yet known. The objective of this study was to understand how gene...
Article
Full-text available
Knowledge on the genetic bases of physiological processes determining maize kernel weight (KW) is relevant for maize yield improvement. However, little is known about the genetic control of KW and its component traits: kernel growth rate (KGR) and grain-filling duration (GFD). We phenotyped several grain-filling traits in 245 RILs from the IBM Syn4...
Article
Full-text available
Breeders recognize that the maize (Zea mays L.) germplasm base is narrow and consequently, it should be extended by the introgression of exotic germplasm. Several studies have explored the potential of open-pollinated populations to improve grain yield, disease resistances, and other traits, but few have considered traits related to forage yield an...
Article
Full-text available
Cryptic intergenomic pairing of genus Zea was induced by the use of a diluted colchicine solution in order to elucidate the phylogenetic relations and differentiation of the homoeologous genomes. Results indicate that in species and hybrids with 2n = 20, there was chromosome pairing between the homoeologous A and B genomes with a maximum of 5IV, wi...
Article
The use of transgenic maize (Zea mays L.) hybrids (Bt, RR, Bt-RR) has simplified crop husbandry, mainly due to a more effective control of pests and weeds. The effects of transgenes insertion on phenotypic traits of maize hybrids are not fully documented, especially without the incidence of pests and weeds. The objectives of this work were (i) to e...
Article
Full-text available
La poda es una práctica que beneficia no sólo la calidad y cantidad de los frutos, sino también favorece la preservación de la planta como unidad productiva. Tiene distintos objetivos dependiendo de su intensidad y del momento de realización. En la Argentina, no se conoce cuál es el tipo de poda más beneficiosa para el arándano (Vaccinium corymbosu...
Article
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In Argentina, southern highbush blueberry (Vaccinium sp.) exhibits two periods of vegetative growth in the same year, the first one in spring (spring growth, SpG), arising from vegetative buds on one-year-old wood, and the second in summer, from vegetative buds formed on spring growth, just after harvest (summer growth, SmG). Histological studies c...
Article
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En las provincias de Buenos Aires y Entre Ríos, las plantas de arándano de la var. O’Neal presentan dos períodos de crecimiento vegetativo: brotaciones de primavera (BP), de yemas vegetativas desarrolladas sobre ramas de un año, y brotaciones de verano (BV), a partir de yemas desarrolladas en los BP. A través de observaciones visuales y microscópic...
Article
Genomic formulae, fertility, chromosome pairing, and the cryptic intergenomic pairing (induced by using diluted colchicine solution) were analysed in the tri-hybrid (MDP), obtained by crossing DP40 (2n=40, which was inferred in previous studies to have originated from the fusion of an unreduced gamete of Zea diploperennis with a normal gamete of Z....
Article
Full-text available
The winter wheat (Triticum aestivum L.) producing region of the U.S. Pacific Northwest (PNW) is subject to periods of water deficit during sowing and grain filling. Improving the genetic adaptation of wheat to drought stress represents one of the main objectives of regional breeding programs. One biochemical response to dehydrative stress is the ac...
Article
The winter wheat (Triticum aestivum L.) producing region of the US Pacific Northwest (PNW) is often subject to water deficits at sowing and during grain filling. Improved genetic adaptation of wheat cultivars to drought stress is one objective of breeding efforts in the region. Consequently, there is interest in identifying molecular markers associ...
Article
The Pacific Northwest (PNW), an important region for wheat production in the USA, is often subject to water deficits during sowing and grain filling. These deficits reduce the quality and yield of the crop. As a consequence, an important objective of breeding programs in the region is improving the genetic adaptation of wheat cultivars to drought s...
Article
Cultivar mixtures are an alternative to monoculture for crop production. Methods for predicting the performance of cultivars in mixtures would facilitate the identification of the best cultivars for mixture formation. A prediction method [Theor. Appl. Genet. 81 (1991) 265] based on the combining ability analysis proposed by Gardner and Eberhart [Bi...

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Projects

Projects (4)
Project
The BIOCODE project aims to produce high--value extraction compounds (e.g. protein, oil and carotenoids), cellulose and hemicellulose products (nanocelluloses, soluble cellulosic macromolecules, sugars and lactic acid) and lignin based materials (biochar,soil additives, chemicals) based on main commercial grain crop residues (corn, rapeseed and wheat co-streams). A sequential fractionation concept based on extraction pre-treatment (fractionation of minor components) followed by hydrothermal destructuration (fractionation of major components) will be developed and integrated with conversion techniques based on lactic acid production (hemicellulose valorisation), deep eutectic solvents (cellulose valorisation) and hydrothermal carbonisation (lignin valorisation). The concept is envisioned to enable flexible and multi-feedstock processing in small--scale units which can be integrated with existing industries in the EU and Latin American regions (e.g. with bioethanol or pulp mills).
Archived project
One objective of this research was to establish the potential of elite maize landraces as a source of variability useful for maize breeders in traits in which more information is needed. A second objective was to determine the most suitable breeding strategy for the introgression of favorable alleles from the selected landraces.