Search Results - "Javier López-Upton"

Taxus globosa Schltdl. (Mexican yew) and Taxus baccata L. (European yew): intra and interspecies analysis of taxol content and biological activity according to different sources by Osuna-Torres, Lidia, García-Martí, Xavier, Ventura-Zapata, Elsa, López-Upton, Javier, Zamilpa-Alvarez, Alejandro, González-Cortázar, Manases, Herrera-Ruiz, Maribel, Tapia-Barrera, Nadia

“…Aim of study: Taxus globosa is the only species of Taxus genus that grows in Mexico, and is a tree which is protected by the Mexican Government. This plant…”
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Survival of side grafts with scions from pure species Pinus engelmannii Carr. and the P. engelmannii × P. arizonica Engelm. var. arizonica hybrid by Pérez-Luna, Alberto, Wehenkel, Christian, Prieto-Ruíz, José Ángel, López-Upton, Javier, Hernández-Díaz, José Ciro

“…Grafting is one of the most widely used methods for vegetative propagation, particularly for multiplying trees considered important, but there has been little…”
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Adaptive Trait Variation in Seedlings of Rare Endemic Mexican Spruce Provenances under Nursery Conditions by Christian Wehenkel, José Marcos Torres-Valverde, José Ciro Hernández-Díaz, Eduardo Mendoza-Maya, Artemio Carrillo-Parra, Santiago Solis-González, Javier López-Upton

“…The distributions of the three Mexican spruces are fragmented, possibly leading to phenological, morphological and genetic differentiation, which is partly…”
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Some Factors Involved in the Success of Side Veneer Grafting of Pinus engelmannii Carr by Alberto Pérez-Luna, José Ángel Prieto-Ruíz, Javier López-Upton, Artemio Carrillo-Parra, Christian Wehenkel, Jorge Armando Chávez-Simental, José Ciro Hernández-Díaz

“…The establishment of clonal seed orchards is a viable option for the continuous production of improved seed of desired genotypes. Grafting is the main…”
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Diversity and Genetic Structure of Dioon holmgrenii (Cycadales: Zamiaceae) in the Mexican Pacific Coast Biogeographic Province: Implications for Conservation by Velasco-García, Mario Valerio, Ramírez-Herrera, Carlos, López-Upton, Javier, Valdez-Hernández, Juan Ignacio, López-Sánchez, Higinio, López-Mata, Lauro

“…Dioon holmgrenii De Luca, Sabato et Vázq.Torres is an endangered species; it is endemic and its distribution is restricted to the biogeographic province of the…”
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Intraspecific Variation in Pines from the Trans-Mexican Volcanic Belt Grown under Two Watering Regimes: Implications for Management of Genetic Resources by Andrés Flores, José Climent, Valentín Pando, Javier López-Upton, Ricardo Alía

“…Management of forest genetic resources requires experimental data related to the genetic variation of the species and populations under different climatic…”
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Priorities for Conservation and Sustainable Use of Forest Genetic Resources in Four Mexican Pines by Andrés Flores, Javier López-Upton, Cristobal D. Rullán-Silva, Adriana E. Olthoff, Ricardo Alía, Cuauhtémoc Sáenz-Romero, José M. Garcia del Barrio

“…The strategies for the conservation and sustainable use of forest genetic resources, which are essential for the future adaptation of forest species to…”
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Diversidad de morfotipos de hongos ectomicorrizógenos y adaptación al hospedero en poblaciones contrastantes de Pinus greggii var. australis (Pinaceae) by Rodrfguez-Gomez-Tagle, Gabriela, Vargas-Hernandez, J. Jesus, Lopez-Upton, Javier, Perez-Moreno, Jesus

“…Antecedentes y Objetivos: La compatibilidad entre hongos micorrizógenos y árboles es consecuencia de procesos coevolutivos en respuesta a presiones de…”
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El desafío para establecer especies arbóreas en suelos salinos del ex lago Texcoco by César Ortiz-Torres, Armando Gómez-Guerrero, Héctor Manuel Ortega-Escobar, Javier López-Upton, Francisca Ofelia Plascencia-Escalante, Tomás Martínez-Trinidad

“…Dado la presión por urbanizar áreas con presencia de suelos salino-sódicos (SSS) alrededor del ex lago de Texcoco, México, es importante encontrar estrategias…”
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Diversity and Genetic Structure Inferred with Microsatellites in Natural Populations of Pseudotsuga menziesii (Mirb.) Franco (Pinaceae) in the Central Region of Mexico by Paulina Montiel Castelán, Moisés Cortés-Cruz, Ma. del Carmen Mendoza-Castillo, Serafín Cruz-Izquierdo, Javier López-Upton, Isaac Sandoval Padilla, Vidal Guerra de la Cruz

“…The amount and structure of the genetic diversity in Mexican populations of Pseudotsuga menziesii (Mirb.) Franco, is almost unknown, since most genetic studies…”
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Cedrela odorata L.: oportunidades para su conservación y mejoramiento genético by Gálvez López, Lorena, Vallejo Reyna, Miguel Angel, Méndez Espinoza, Claudia, López Upton, Javier

“…Cedrela odorata, conocida comúnmente como cedro rojo, es una especie forestal tropical de alto valor comercial en el mercado internacional de la madera. La…”
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Extinction Risk of Pseudotsuga Menziesii Populations in the Central Region of Mexico: An AHP Analysis by Javier López-Upton, J. René Valdez-Lazalde, Aracely Ventura-Ríos, J. Jesús Vargas-Hernández, Vidal Guerra-de-la-Cruz

“…Within the Analytic Hierarchy Process (AHP) framework, a hierarchical model was created considering anthropogenic, genetic and ecological criteria and…”
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Growth and frost damage variation among Pinus pseudostrobus, P. montezumae and P. hartwegii tested in Michoacán, México by Viveros-Viveros, Héctor, Sáenz-Romero, Cuauhtémoc, López-Upton, Javier, Vargas-Hernández, J. Jesús

“…To study the variation in growth traits, survival, and frost damage between four taxa, Pinus pseudostrobus typical (represented by four provenances) and its…”
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Comparative genetic responses to climate for the varieties of Pinus ponderosa and Pseudotsuga menziesii: Realized climate niches by Rehfeldt, Gerald E., Jaquish, Barry C., López-Upton, Javier, Sáenz-Romero, Cuauhtémoc, St Clair, J. Bradley, Leites, Laura P., Joyce, Dennis G.

“…•We model the climate niche of Pinus ponderosa and Pseudotsuga menziesii varieties.•Classification errors were less than 5% and were mostly false…”
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Genetic variation and phenotypic plasticity in the seasonal shoot growth pattern of Pinus pseudostrobus by Escobar-Alonso, Sebastián, Vargas-Hernández, J. Jesús, López-Upton, Javier, García-Campusano, Florencia, Jiménez-Casas, Marcos, Cruz-Huerta, Nicacio

“…Global warming has increased the stress conditions faced by natural populations of forest species. Genetic variation (GV) and phenotypic plasticity (PP) of…”
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Comparative genetic responses to climate in the varieties of Pinus ponderosa and Pseudotsuga menziesii: Reforestation by Rehfeldt, Gerald E., Jaquish, Barry C., Sáenz-Romero, Cuauhtémoc, Joyce, Dennis G., Leites, Laura P., Bradley St Clair, J., López-Upton, Javier

“…•Climate change will impact reforestation strategies.•We assess impacts to Pinus ponderosa and Pseudotsuga menziesii varieties.•Few populations should remain…”
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Seed production potential of Pinus montezumae Lambert in central Mexico by Herrera-Hernández, Raquel, López-Upton, Javier, Muñoz-Gutiérrez, Liliana, Ramírez-Herrera, Carlos

“…ABSTRACT The forests that surround the cities of Mexico, Puebla and Tlaxcala are a source of environmental services for 25 million people. Pinus montezumae…”
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Comparative genetic responses to climate in the varieties of Pinus ponderosa and Pseudotsuga menziesii: Clines in growth potential by Rehfeldt, Gerald E., Leites, Laura P., Bradley St Clair, J., Jaquish, Barry C., Sáenz-Romero, Cuauhtémoc, López-Upton, Javier, Joyce, Dennis G.

“…•We use data from 10 Pinus ponderosa and 17 Pseudotsuga menziesii provenance tests.•Climatic clines within sub-specific varieties were assessed with mixed…”
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CRECIMIENTO MADERABLE Y BIOMASA AÉREA EN PLANTACIONES JÓVENES DE Pinus patula Schiede ex Schltdl. et Cham. EN ZACUALPAN, VERACRUZ by Romo Guzmán, Domingo, Navarro Garza, Hermilio, De los Santos Posadas, Héctor Manuel, Hernández Romero, Oliverio, López Upton, Javier

“…La superficie de bosques nativos a escala mundial disminuye en proporciones alarmantes, pues cada año se deforestan 13 millones de ha, y para México, en…”
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Sustratos y tamaños de contenedor en el desarrollo de Hevea brasiliensis Müll. Arg. en vivero by Santiago Trinidad, Olga, Vargas Hernández, José de Jesús, Aldrete, Arnulfo, López Upton, Javier, Fierros González, Aurelio Manuel

“…La producción tradicional de Hevea brasiliensis en bolsa de plástico presenta varios problemas operativos y de calidad de planta. Con el fin de generar…”
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