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Selection of shade tree species for agroforestry systems must take the complexity of these systems into account. Tree species selection should maximiz...
Read moreA. albida, which grows along seasonal watercourses in this region, flushes and flowers at the beginning of the dry season and is leafless during the r...
Read moreIn a cocoa plantation in Costa Rica, T. jaty was a common visitor to the flowers; on 70% of observed visits, the bees collected pollen. However, fruit...
Read moreSeed germination in Agrostis capillaris, Holcus lanatus, Poa trivialis, Cynosurus cristatus and Festuca rubra was investigated in the dark at temp. ra...
Read moreShallow lakes are important components of the biosphere, but they are also highly vulnerable to damage from human activities in their catchments, such...
Read moreAnalysis of weather data for 20 years indicated that toxicity was related to low sunlight hours, and shading experiments confirmed this belief. Round ...
Read moreWheat cv. Concorde, Chenopodium album, Agropyron repens [Elymus repens] and Spergula arvensis were grown in pure stands and in mixtures of weeds with ...
Read moreMonthly totals of arthropods found killed by pathogenic fungi in collections from 5 X 4 quadrats in three forest types in Ghana were shown to be inver...
Read moreThe foliage areas exposed to direct sunlight, or shaded from it by other foliage, can be calculated for any particular foliage-area index given the in...
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