Díaz López E¹, A Morales Ruíz¹, EJ Vargas Ramírez¹, P Hernández Herrera¹, RC Reséndiz Melgar¹, I Brena Hernández², JM Loeza Corte²

Phyton-International Journal of Experimental Botany, Vol.84, No.2, pp. 319-330, 2015, DOI:10.32604/phyton.2015.84.319

Abstract The effect of six phosphorus levels (0, 40, 80, 120, 160 and 200 kg/ha) on the duration of cumulative leaf area, biomass and agronomic yield was determined in the maize cultivars: Amarillo Almoloya, Cacahuacintle and Condor in 2010 and 2011. Such cultivars were sown in the Cerrillo Piedras Blancas Mexico. A completely randomized complete block design with factorial arrangement was utilized. High phosphorus levels (120, 160 and 200 kg/ha) positively affected the duration of cumulative leaf area; greatest values were obtained in Cacahuacintle. A greater duration of accumulated leaf area contributes to determine high values More >

Gutiérrez-Guzmán UN¹, E Castellanos-Pérez¹, JJ Q uiñones-Vera¹, JS Serrato-Corona¹, JJ Martínez-Ríos¹, I Orona-Castillo¹, I Chairez-Hernández²

Phyton-International Journal of Experimental Botany, Vol.84, No.2, pp. 312-318, 2015, DOI:10.32604/phyton.2015.84.312

Abstract A regression model was used to determine the relationship between aerial herbaceous biomass and vegetation coverage estimated by digital images. Four samplings (n=36 each date) of vegetation cover and herbaceous biomass were performed during the growing season in 2011 in a grassland dominated by Bouteloua gracilis in La Cieneguilla, Municipality of Villa Hidalgo, Durango. Average production of dry biomass was 37.36 ± 9.66 g/m², and mean vegetation cover 30.02%. Dry biomass data were tested for normality using the test of Kolmogorov Smirnov, finding a lack of fit. The data were subjected to a logarithmic transformation and the… More >

Morales-Nieto CR¹, C Avendaño-Arrazate², A Melgoza-Castillo¹, M Martinez-Salvador³, P Jurado-Guerra⁴

Phyton-International Journal of Experimental Botany, Vol.84, No.1, pp. 190-200, 2015, DOI:10.32604/phyton.2015.84.190

Abstract Plains bristlegrass (Setaria macrostachya Kunth) is a native grass with forage value. However, due to the lack of grazing management practices, populations and thus genetic diversity, have been reduced. Morphological and genetic variability were analyzed on 44 populations of plains bristlegrass in the State of Chihuahua. Plants were transplanted in a common area under natural conditions. Two years later, morphological characterization was evaluated measuring nine variables, and genetic variability using AFLP molecular markers. The principal components analysis (PC) showed that the three first principal components explained 73.74% of the variation. The variables with the greatest contribution… More >

Avendaño-Arrazate CH¹, L Iracheta-Donjuan¹, JC Gódinez-Aguilar², P López-Gómez¹, A Barrios-Ayala³

Phyton-International Journal of Experimental Botany, Vol.84, No.1, pp. 148-162, 2015, DOI:10.32604/phyton.2015.84.148

Abstract The agave papalote (Agave cupreata Trelease) which is endemic to the Guerrero state, Mexico, is propagated exclusively by seed, but it is overutilized and knowledge of its diversity is needed for its protection. Therefore, the study aimed to determine the morphological variation in wild and cultivated populations of Agave cupreata in five areas of Guerrero. Ninety one characters were evaluated in situ, and only 51 qualitative and quantitative morphological characters of the plant, leaf spine, flower, fruit, seed and flower stalk were selected. The work was carried out in five different altitudinal zones, according to the level of… More >

Alvarado-Vázquez MA, R Foroughbakhch, MA Guzmán- Lucio, A Rocha-Estrada, JL Hernández-Piñero, ML Cárdenas-Ávila, BM Soto-García

Phyton-International Journal of Experimental Botany, Vol.84, No.1, pp. 70-79, 2015, DOI:10.32604/phyton.2015.84.070

Abstract Candelilla (Euphorbia antisiphylitica Zucc.) is a very important plant resource in the arid lands of Northern Mexico. This is because the wax content coating the stem has unique properties which have been useful for multiple applications in the food industry, electronics, cosmetics, etc. However, the intensive exploitation of this resource has caused a great decrease in the populations of this species making necessary to consider strategies for their conservation and sustainable use. One of the primary needs with regeneration purposes is to know their reproductive processes, particularly the biotic and/or abiotic factors that determine the viability… More >

Ocaña-de Jesús RL, AT Gutiérrez-Ibáñez, JR Sánchez-Pale, MD Mariezcurrena-Berasain, G Velázquez-Garduño, A Laguna Cerda, I Rojas Puebla

Phyton-International Journal of Experimental Botany, Vol.84, No.1, pp. 45-50, 2015, DOI:10.32604/phyton.2015.84.045

Abstract The aim of the current research was to determine tomato (Solanum lycopersicum L.) microbiological quality produced under greenhouse conditions in 5 municipalities of the State of Mexico. Studies were conducted during the 2013 production cycle to know the risks and apply prevention strategies prior to its consumption. A microbiological analysis of samples of irrigation water, soil and 100 tomato fruits variety cid was performed to determine Aerobic Mesophiles, Total Coliforms and Fecal Coliforms. The methodology used were those according to the Official Mexican Standards NOM- 109-SSA1-1994, NOM-110-SSA1-1994, NOM-092-SSA1-1994, NOM-113-SSA1-1994, and the Regulations of the National French More >

Jiménez-Juárez JA^1,2, G Arámbula-Villa³, E de la Cruz-Lázaro^1*, MA Aparicio-Trapala¹

Phyton-International Journal of Experimental Botany, Vol.84, No.1, pp. 1-7, 2015, DOI:10.32604/phyton.2015.84.001

Abstract Maize (Zea mays L.) tortilla is the major staple food for the Mexican population. Nine tropical maize genotypes were evaluated. All samples had white grains, a common characteristic in tropical maize, and therefore they were appropriate for nixtamalized flour industry. Grain, flour, masa and tortilla characteristics of each maize genotype were evaluated. Length, width, thickness, weight of 1000 grains and hardness of grain were determined. Moisture content, proteins, fat, ash, mean particle size, water absorption index, enthalpy, and flour temperature were also evaluated. Adhesiveness and cohesiveness were evaluated in masa. Moisture content, protein, capacity to puff… More >

Castellón Martínez E¹, JC Carrillo-Rodríguez¹, JL Chávez-Servia², AM Vera-Guzmán²

Phyton-International Journal of Experimental Botany, Vol.83, pp. 225-236, 2014, DOI:10.32604/phyton.2014.83.225

Abstract Farmers’ role is important for the selection and conservation of the local diversity of native peppers (Capsicum annuum L.), which are distinguished by pod shape, plant traits, and show high levels of biogeographic and cultural heterogeneity. Our objective was to evaluate the phenotypic variation and postharvest changes of fruits in six morphotypes of native peppers from the Central Valleys of Oaxaca, Mexico. This would contribute information on the diversity of pepper landraces. Collection and characterization of plant and fruits were undertaken for 52 samples grouped into six morphotypes, under a completely randomized block design with three… More >

Rubí-Arriaga M, A González-Huerta, I Martínez-De La Cruz, O Franco-Mora, JF Ramírez-Dávila, JA López-Sandoval, GV Hernández-Flores

Phyton-International Journal of Experimental Botany, Vol.83, pp. 203-211, 2014, DOI:10.32604/phyton.2014.83.203

Abstract Sultepec, State of Mexico, located on the central part of Mexico, belongs to the Physiographic province “Sierra Madre del Sur” and to the Subprovince “Depresión del Balsas”. Although it is known for its floristic richness, it lacks an inventory of vascular plants, including the fruit species. The aim of this work was to elaborate a database including family, scientific name, local name, biological form, origin, use, management, production and service of the fruit species. Plants were collected continuously from June 2010 to June 2011. Subsequently, they were determined in the herbarium “Eizi Matuda” (CODAGEM) from… More >

Ramírez-Dávila JF¹, RA Jiménez-Carrillo², JR Sánchez-Pale¹, M Rubí Arriaga¹, DK Figueroa-Figueroa¹

Phyton-International Journal of Experimental Botany, Vol.83, pp. 193-202, 2014, DOI:10.32604/phyton.2014.83.193

Abstract This study contributes to the knowledge of the biodiversity of the flora of the State of Mexico through an analysis of the distribution and abundance of Asclepias curassavica L., which is planted with ornamental and medicinal potential. The study was carried out in the municipalities of Temascaltepec, Malinalco and Valle de Bravo. The spatial statistical method was used to determine the distribution of A. curassavica based on the method SADIE (spatial analysis by remote indexes). Sampling transects of 200 m, marked every 10 m, were used in the three municipalities, during three times of the year, spring,… More >