Academic literature on the topic 'Maïs (Zea mays subsp. mays)'
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Journal articles on the topic "Maïs (Zea mays subsp. mays)"
Gallavotti, Andrea, and Clinton J. Whipple. "Positional Cloning in Maize (Zea mays subsp. mays, Poaceae)." Applications in Plant Sciences 3, no. 1 (January 2015): 1400092. http://dx.doi.org/10.3732/apps.1400092.
Full textGonzalez, G., V. Confalonieri, C. Comas, C. A. Naranjo, and L. Poggio. "GISHGenomic in situ hybridization reveals cryptic genetic differences between maize and its putative wild progenitor Zea mays subsp. parviglumis." Genome 47, no. 5 (October 1, 2004): 947–53. http://dx.doi.org/10.1139/g04-038.
Full textSundberg, Marshall D., and Alan R. Orr. "INFLORESCENCE DEVELOPMENT IN TWO ANNUAL TEOSINTES: ZEA MAYS SUBSP. MEXICANA AND Z. MAYS SUBSP. PARVIGLUMIS." American Journal of Botany 77, no. 2 (February 1990): 141–52. http://dx.doi.org/10.1002/j.1537-2197.1990.tb13541.x.
Full textGonzález, Graciela Esther, and Lidia Poggio. "Genomic affinities revealed by GISH suggests intergenomic restructuring between parental genomes of the paleopolyploid genusZea." Genome 58, no. 10 (October 2015): 433–39. http://dx.doi.org/10.1139/gen-2015-0081.
Full textAdhikari, Sneha, Anjali Joshi, Amarjeet Kumar, and Narendra Kumar Singh. "Diversification of maize (Zea mays L.) through teosinte (Zea mays subsp. parviglumis Iltis & Doebley) allelic." Genetic Resources and Crop Evolution 68, no. 7 (March 31, 2021): 2983–95. http://dx.doi.org/10.1007/s10722-021-01170-z.
Full textAlmeida, Cícero, Adriane leite do Amaral, José fernandes Barbosa Neto, and Maria Jane Cruz de Melo Sereno. "Conservação e germinação in vitro de pólen de milho (Zea mays subsp. mays)." Brazilian Journal of Botany 34, no. 4 (December 2011): 493–97. http://dx.doi.org/10.1590/s0100-84042011000400003.
Full textAlmaraz-Abarca, Norma, Diana María Rivera-Rodríguez, David Arráez-Román, Antonio Segura-Carretero, José De Jesús Sánchez-González, Amanda Delgado-Alvarado, and José Antonio Ávila-Reyes. "Los fenoles del polen del género Zea." Acta Botanica Mexicana 1, no. 105 (October 1, 2013): 59. http://dx.doi.org/10.21829/abm105.2013.225.
Full textOrozco-Ramírez, Quetzalcóatl, Hugo Perales, and Robert J. Hijmans. "Geographical distribution and diversity of maize (Zea mays L. subsp. mays) races in Mexico." Genetic Resources and Crop Evolution 64, no. 5 (April 22, 2016): 855–65. http://dx.doi.org/10.1007/s10722-016-0405-0.
Full textMano, Y., and F. Omori. "Flooding tolerance in maize (Zea mays subsp. mays) F1 hybrids containing a QTL introgressed from teosinte (Zea nicaraguensis)." Euphytica 205, no. 1 (April 23, 2015): 255–67. http://dx.doi.org/10.1007/s10681-015-1449-5.
Full textMano, Y., and F. Omori. "Flooding tolerance in interspecific introgression lines containing chromosome segments from teosinte (Zea nicaraguensis) in maize (Zea mays subsp. mays)." Annals of Botany 112, no. 6 (July 21, 2013): 1125–39. http://dx.doi.org/10.1093/aob/mct160.
Full textDissertations / Theses on the topic "Maïs (Zea mays subsp. mays)"
Almeida, Cícero Carlos de Souza. "Análise citogenética e molecular em milho (Zea mays subsp. mays), teosinto (Zea mays susp. mexicana) e em seus híbridos." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2003. http://hdl.handle.net/10183/4419.
Full textTerra, Tatiana de Freitas. "Variabilidade genética em populações de teosinto (Zea mays subsp. mexicana) visando a contribuição para o melhoramento genético do milho (Zea mays subsp. mays)." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2009. http://hdl.handle.net/10183/32373.
Full textMaize (Zea mays subsp. mays) was domesticated about 8000 years ago, from teosinte. Genetic variability of domesticated maize populations may have been reduced due to genetic drift and early farmer’s selection. There is scientific indication that the cultivated maize genome presents a loss of variability when compared with its wild ancestral. The variability present in teosinte germplasm, which was not selected during domestication, can be used to identify alleles for important agronomic traits for maize, such as related with biotic and abiotic stress tolerance. Although teosinte is closely related to maize, there are few works on characterization of this subspecies. The objectives of this study were to analyze the genetic variability of two populations of teosinte (Zea mays subsp. mexicana), through phenotypic, biochemic and molecular analysis, and to evaluate the compatibility of oriented crosses between maize and teosinte from segregant populations and of pollen grains viability. The genotypes were analyzed through eight phenotypic traits, 12 isozymes bands and 25 microsatellites loci. The phenotypic data indicated high genetic variability (0.84) between the teosinte populations, agreeing with the average similarity (0.24) of esterases data. Amongst 25 analyzed SSR loci, 88 % presented polymorphism, with an average of 2.5 alleles/locus, and reduced genetic distance between the populations (0.14). The genetic structure of the populations was considered to be moderately high, presenting a coefficient of endogamy of 0.44. Also was observed moderate genetic differentiation (0.15) and reduced gene flow between the populations. It was observed a high frequency of viable pollen grains (above of 90%), suggesting absence of cytological barriers between maize and teosinte. The crossings had indicated incompatibility between the two subspecies and presence of genetic barriers. This work represents a contribution for the characterization of the genetic variability in teosinte and indicates the potential of this wild germplasm as genetic resource for maize breeding.
Longchamp, Mélanie. "Etude biogéochimique du transfert du sélénium dans un système eau-plante-atmosphère : conséquences sur la physiologie du Zea mays subsp. mays (L.)." Paris 6, 2012. http://www.theses.fr/2012PA066418.
Full textSelenium is an antioxidant and an oligo-element for animals and humans. However, the concentration range between deficiency and toxicity is particularly narrow. This metalloid allotropic is introduced indirectly in the food chain via its accumulation in food plants. The literature on this subject is still restricted and incompleted, and traditionally realised on model plants and in presence of selenium in high concentrations. This thesis is about selenium transfer in a plant crop, Zea mays, and consequences of this accumulation on physiological plant through essential cations accumulation study (calcium, magnesium, iron, zinc, manganese, copper). For this, experiments in a controlled atmosphere chamber (hydroponic conditions) were performed to obtain samples then analyzed by appropriate analytical and sensitive techniques (HPLC, CRC-ICP-MS, ICP-OES or AAS-GF). Various factors influencing selenium transfer in plants have been studied: concentration and form of selenium source and stage of plant development. The results of this study showed that root absorption, concentration within the plants and their tissues, degree of selenium metabolization and volatilization, and therefore selenium intake in animals and humans, are strongly influenced by those three factors. Furthermore, this study showed that accumulation and distribution of cations within the plants depend on selenium -mainly at high concentrations. These effects may be associated with the system imbalance of reactive oxygen species detoxification in plant cells, consistent with the ambivalent nature of selenium mentioned in the literature: antioxidant or prooxidant depending on its concentration
Blancon, Justin. "Identification des déterminants génétiques de la tolérance à la sècheresse chez le maïs par l'étude de l'évolution de l'indice foliaire vert au cours du cycle de la plante et le développement d'une méthode de phénotypage innovant." Thesis, Université Clermont Auvergne (2017-2020), 2019. http://www.theses.fr/2019CLFAC026.
Full textBy the end of the century, climate forecasts predict a decrease in the quantity and regularity of rainfall with an increasing risk of drought in Europe and in many regions of the world. Breeding for more tolerant varieties will be an essential lever to face these future constraints. The main objective of this work is to characterize the genetic determinisms of drought tolerance in maize. To this aim, it is proposed to dissect this complex trait into underlying physiological traits whose genetic determinism is supposed to be simpler. Green Leaf Area Index (GLAI) dynamics throughout the plant cycle, through its major role in light interception, transpiration and CO2 exchange, is a promising secondary trait to identify and better understand the genetic basis of drought tolerance. During this thesis, we developed a high-throughput method for phenotyping maize GLAI dynamics in the field. This method combines UAV multispectral imagery and a simple GLAI model. It makes possible the estimation of the dynamics of GLAI continuously throughout the whole plant cycle with good accuracy, while reducing the phenotyping time twentyfold. This method was used in two well-watered and two water-deficient trials to characterize the GLAI dynamics of 324 lines from a MAGIC population (Multi-parent Advanced Generation Inter-Cross). The estimated dynamics have a high heritability and explain a significant part of grain yield under well-watered and water-stressed conditions. To characterize the genetic basis of GLAI dynamics, three longitudinal GWAS (Genome Wide Association Study) approaches were compared: a univariate two-step approach, a multivariate two-step approach and a random regression one-step approach. These three approaches, combined with the high density of available genotyping data (nearly 8 million markers), have revealed many QTL (Quantitative Trait Loci), some of which were co-localized with yield QTL. Finally, we demonstrated that the GLAI QTL identified in this study could explain nearly 20 % of the grain yield variability observed in a large network of water-stressed experiments. This work provides methods that will enable a better characterization and understanding of the genetic determinisms of GLAI dynamics, a trait that was out of reach in large populations until now. This trait presents all the characteristics required to improve the effectiveness of selection programs under water stress conditions
Longchamp, Melanie. "Etude biogéochimique du transfert du sélénium dans un système eau-plante-atmosphère : conséquences sur la physiologie du Zea mays subsp. mays (L.)." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2012. http://tel.archives-ouvertes.fr/tel-00833227.
Full textSobottka, Renata Pinheiro. "Moduladores naturais na proteção genética de trigo (Triticum turgidum L. subsp. durum) contra Fusarium spp. por técnica molecular e LC-MS. Aplicação de tecnologia NIR na predição de composição química de milho (Zea mays L.)." Universidade Estadual de Londrina. Centro de Ciências Agrárias. Programa de Pós-Graduação em Ciência de Alimentos, 2014. http://www.bibliotecadigital.uel.br/document/?code=vtls000189591.
Full textWheat (Triticum sp.) and maize (Zea mays L.), belonging to the Poaceae family, are important cereals on the global socio-economy, being widely used for human and animal consumption. The study evaluated the fungal growth and trichothecene production (deoxynivalenol, DON) in wheat cultivars on the genetic protection context (Chapter 1). In parallel, it was evaluated the application of NIR technology for prediction of water activity, protein, moisture and ash contents in maize, seeking the application of this rapid method being capable for subsidizing the classical technique (Chapter 2). Chapter 1 was executed in France and evaluated four wheat cultivars with different sensitivity to Fusarium infection, with and without inoculum of Fusarium culmorum, followed by analysis of grains in two stages of development (five days after inoculation and at maturity stage). The analysis of wheat grains was the determination of DON, phenolic acids composition (soluble and bound to the cell wall) by LC/MS and the Tri5 gene determination by real-time PCR. The resistant wheat cultivar significantly limited the development of Fusarium culmorum and DON contamination (p <0.05). Glumes of resistant wheat cultivar showed high content on chlorogenic acid and flavones, suggesting involvement on resistance against Fusarium sp. and DON production. Study on natural modulators with potential inhibitor on the biosynthesis of trichothecenes should be pursued in order to ensure food safety, also focused on reduction of pesticide application. Chapter 2 evaluated the application of NIR technology for prediction of water activity (aw), protein, moisture and ash contents in maize from four different plant density (60, 75, 90 and 105 thousand plants ha-1) with five doses of nitrogen (0, 60, 120, 180 and 240 kg ha-1). Maize samples from the same plant density had their protein content increased with levels of fertilization (doses of nitrogen, p <0.05). However, no significant difference was observed among maize treated with the same dose of nitrogen, but with different plant density (p <0.05). The maize samples were scanned in the visible / NIR range of 400 - 2500 nm. The best coefficient of prediction was obtained for protein (R2cv=0.90), which revealed a strong relationship between spectral information and protein content. The models for three parameters (protein, moisture and aw) showed the ratio of standard error of calibration and standard deviation (RPD) between 2.4 and 4.2. Except for ash, the models obtained showed satisfactory for screening purposes of constituents - protein, aw and moisture - in maize, under the context of rapid monitoring of industrial processing plant.
La, Hovary Christophe. "Le désherbage mécanique complet dans le maïs, Zea mays L." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ49031.pdf.
Full textMoulia, Bruno. "Etude mécanique du port foliaire du maïs (Zea mays L. )." Bordeaux 1, 1993. http://www.theses.fr/1993BOR10576.
Full textLauga, Béatrice. "Etude génétique et moléculaire de déficiences polliniques chez Zea mays L." Pau, 1996. http://www.theses.fr/1996PAUU3040.
Full textLejeune, Pierre. "Etude physiologique de l'initiation de l'inflorescence femelle chez le maïs (Zea mays L. )." Lyon 1, 1995. http://www.theses.fr/1995LYO10286.
Full textBook chapters on the topic "Maïs (Zea mays subsp. mays)"
"Maize (Zea mays subsp. mays)." In Safety Assessment of Transgenic Organisms, 47–78. OECD Publishing, 2008. http://dx.doi.org/10.1787/9789264053465-4-en.
Full text"Section 3 - Maize (ZEA MAYS SUBSP. MAYS)." In Safety Assessment of Transgenic Organisms, Volume 1, 47–78. OECD, 2006. http://dx.doi.org/10.1787/9789264095380-6-en.
Full textConference papers on the topic "Maïs (Zea mays subsp. mays)"
Kopecký, Marek, Jaroslav Bernas, Ladislav Kolář, and Pavlína Hloucalová. "MONITORING OF ENERGY GAIN AND EROSION PROTECTION OF CORN AND TALL WHEATGRASS CROPS IN THE CONDITIONS OF THE CZECH REPUBLIC." In RURAL DEVELOPMENT. Aleksandras Stulginskis University, 2018. http://dx.doi.org/10.15544/rd.2017.084.
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