[PDF] Top 20 Seed germination of Opuntia species from an aridity gradient in Central Mexico
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Seed germination of Opuntia species from an aridity gradient in Central Mexico
... that seed coat (testa) functions as regulator in imbibition (Souza and Marcos– Filho, 2001), and that a rapid and high percentage of germination is associated with a thin testa (Maiti et ... See full document
19
Effect of biological soil crusts on the germination of three plant species under laboratory conditions
... grasslands in northeastern Mexico contain endemic plants and animals, and are an important refuge for resi- dent and migratory ...as in other semiarid areas, biological soil crusts (BSC) are a ... See full document
8
Avian gut passage effects on seed germination of shrubland species in Mediterranean central Chile
... advantages of faster germination or shorter dormancy periods for shrub seeds under Mediterranean climate are not fully ...understood. An advantage of faster seed germination is ... See full document
10
Distribución y correlación espacial de especies arbóreas por gradiente altitudinal en la Selva Lacandona, Chiapas
... variation in the distribution patterns in the different AS is related to the clearings generated by the intermediate and higher categories, since, having been affected by some disturbance (such as the ... See full document
25
Reforestation with Bombacopsis quinatum (Jaq ) Dugand (Bombacaceae) in Costa Rica by means of vegetative reproduction
... structure of the soil is excellent but the chemical composi tion is strongly in the direction of pedalfers with little in the way of base exchange capaci ...Except in fresh ... See full document
7
Efecto de la densidad de semillas en la germinación de tres especies del género astrophytum (Cactaceae)= Effect of seed density in the germination of three species of astrophytum (Cactaceae)
... obtained from wild populations of Astrophytum capricorne, ...ornatum in Coahuila, Durango and Hidalgo, respectively, in order to evaluate the effect of grouping on seed ... See full document
5
Effects of the first thinning on the growth and cone production of stone pine (Pinus pinea L ) stands in the Northern Plateau (Spain)
... 2009). In order to avoid over-parameterization an iterative sequential procedure was proposed to define the appropriate model for each response ...Inclusion of random effects and selection of ... See full document
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... Podocarpus angustifolius es un árbol endémico de los bosques lluviosos de la región de Pinar del Río y la parte central de Cuba, que se encuentra en peligro de extinción. En este estudio se evaluó la germinación ... See full document
10
A new species of Alsobia (Gesneriaceae) from Chiapas, Mexico
... Depresión Central y de los límites de las Montañas del Norte de Chiapas de acuerdo con la clasificación fisiográfica para Chiapas propuesta por Müllerried ...Depresión Central y las Montañas del ... See full document
6
Comparing the sexual reproductive success of two exotic trees invading spanish riparian forests vs a native reference
... starch seed content as well as the lower fiber content in ...plant species is introduced to a region that contains closely related native con- geners, host switching by specialist oligophagous ... See full document
16
Modelling seed germination in forest tree species through survival analysis. The Pinus pinea L. case study
... concern in seed ecology research (Chambers et ...2001). In the case study presented here it was not possible to test dormancy processes, since the seed lots were exposed to natural conditions ... See full document
11
Aquatic insect diversity of Costa Rica: state of knowledge
... found in a wide variety of aquatic and semi-aquatic habitats. In Costa Rica, groups of medical interest early received special attention, for example the families Simuliidae ...survey ... See full document
24
Inland dunes fauna and flora from Paleolake Irritila in the Comarca Lagunera, Coahuila, northern Mexico
... rich in mollusk species. The dunes of the Comarca Lagunera, Coahuila, Mexico, are of major importance due to the well-preserved remains of animals and plants in a ... See full document
11
An arc ankaramite occurrence in central Mexico
... derivation from a high-field strength elements (HFSE) depleted source, within an island-arc ...series of this segment of the Guerrero ... See full document
11
HOW DOES EVOLUTIONARY VARIATION IN BASAL METABOLIC RATES ARISE? A STATISTICAL ASSESSMENT AND A MECHANISTIC MODEL
... evolution of resid- ual BMR in natural populations, the present study has found support for three predictions derived from the “obligatory” heat ...tests of new predictions derived from ... See full document
15
Foliage colour influence on seed germination of Bienertia cycloptera in Arabian deserts
... the germination of seeds, both with and without pulp, and from both reddish and yellowish ...soil seed bank as they require light for germination (Bowers 2000, Rojas-Aréchiga et ...on ... See full document
7
La biofertilización con rizobacterias y hongos micorrízicos arbusculares en la producción de posturas de tomate (Lycopersicon esculentum Mill.) y cebolla (Allium cepa L.). II. Colonización radical y estado nutricional
... Results of both species through the application of rhizobacteria showed differences between ...results of other authors (12), who explained the increase of plant development by means ... See full document
9
New species of Euglossa from Mexico and Central America
... abundant species of Euglossa in Mexico and Central America were described by Moure (1965, 1968, 1969, 1970) if they had not been named by earlier ...authors. Of the abundant ... See full document
19
Bacterias diazótrofas asociadas con leguminosas tropicales con capacidad para tolerar condiciones de estrés ambiental
... condiciones in vitro, prácticamente cualquier célula viva, puede, después del período de diferenciación y bajo la influencia de promotores de crecimiento y diferenciación un medio de cultivo adecuado puede iniciar ... See full document
61
Spatial distribution of pollen along an altitudinal gradient in Michoacán, Mexico
... producción in situ puede deberse a que estos granos habrían sido depositadas antes de la transformación de los bosques en potreros y cultivos en la zona de estudio, lo que indicaría que el musgo puede estar ... See full document
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