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Production pressure and environmental change in the forest-savanna zone of Southern Ghana
Abstract This study confirms the view that changes in the biophysical environment are significantly related to production pressure. The scattered concentrations of forest species in Ghana'sExpand
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Changes in Abscisic Acid in the Embryo and Covering Structures of Acer saccharum during Stratification
Summary Abscisic acid content in fruits of Acer Saccharum (Marsh.) was analyzed by gas-liquid chromatography at 5-day intervals during stratification under cold moist conditions. All tissuesExpand
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Changes in Phenolic Inhibitors in Seeds of Acer saccharum during Stratification
Phenolics in sugar maple seeds were identified by colour reactions, u.v. spectroscopy and gas-liquid chromatography. Changes in their inhibitory activity during stratification were also followedExpand
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Isotopic tracers for net primary productivity for a terrestrial esocystem: A case study of the Volta River basin
The coupling effect of vapour release and CO2 uptake during photosynthesis plays an important role in the carbon and hydrologic cycles. The water use efficiency (WUE) for transpiration was used inExpand
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Effect of pre-sowing 'hydration-dehydration' on germination, vegetative growth and fruit yield of Abelmoschus esculentus grown under two soil mositure regimes
Uniformly-sized seeds of Abelmoschus esculentus (L.) Moench were divided into two batches. One batch was imbibed for 24 h, followed immediately by air-drying to 50% of its moisture contentExpand
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