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103  Articles
1 of 11 pages  |  10  records  |  more records»
Seasonal timing of prescribed fire and alterations to the structure and composition of fuels in savannas and woodlands can release understory hardwoods, potentially resulting in a global increase of closed-canopy forest and a loss of biodiversity. We hypo... see more

El género Aristida está constituido por aproximadamente 330 especies, se encuentra en las regiones tropicales y subtropicales del mundo. Para México se distinguen cerca de 50 especies, principalmente en las zonas áridas, semiáridas y subtropicales. El nor... see more

AbstractChemical control efforts, the introduction of Cactoblastis cactorum and attempted releases of Dactylopius opuntiae Cockerell into the expanding infestation of Opuntia stricta in the Skukuza region of the Kruger National Park (KNP) have had limited... see more

AbstractThe alien invader weed, Opuntia stricta Haw (family Cactaceae), is seriously threatening biodiversity in veld habitats of the Kruger National Park. Basic biological and ecological information on the establishment, growth and reproduction of the sp... see more

The study of the floristic composition of Nardus stricta grasslands improved through fertilisation, amendment and re-sowing for 18 years points out a structural change of the vegetal cover compared to the initial state of the floristic composition. Durin... see more

The nutritive value of the fodder from Nardus stricta grasslands improved through fertilisation, amendment, and re-sowing was pointed out by some quality indices as ADF, NDF, ADL, DDM, DMO, and DMI. The values of these nutrition indices allowed the determ... see more

Reportamos por primera vez la presencia de Aristida asplundii Henrard (Poaceae, Aristidoideae) para Perú basada en colectas de la región Puno (sur del Perú). Incluimos una clave que permite diferenciar las especies de Aristida que habitan en Perú.

?????? ????? ??? ????? ??? Corydalis yazgulemica Mikhailova et Sochivko ?? ?????? Strictae (Fedde) Wendelbo. ???????? ?????? ? ????????????, ?? ??????????? ?????? ????????? ??????. ?? C. rarissima Mikhailova ????? ??? ?????????? ????????? (? ?? ?????... see more

El nopal forrajero (Opuntia stricta Haw.) es un cultivo de gran importancia para la región semiárida de Brasil que se ha propagado a través de cultivo in vitro mediante la activación de areolas. Este trabajo tuvo como objetivo determinar la respuesta de p... see more

1 of 11 pages  |  10  records  |  more records»