Results 61 to 70 of about 47,757 (294)

Inheritance of Early Maturity in Some Cowpea (Vigna unguiculata (L.) Walp.) Genotypes under Rain Fed Conditions in Northern Ghana

open access: yesAdvances in Agriculture, 2018
A field experiment was conducted at Savanna Agricultural Research Institute in 2015 cropping season to examine the inheritance of early maturity among an extra-early maturing landrace Sanzi and a medium maturing variety Padi-Tuya and their progenies. The
Emmanuel Yaw Owusu   +5 more
doaj   +1 more source

Factors that Determine Aflatoxin Infestation in Ghana: Application of Cragg's Double Hurdle Model

open access: yesSustainable Futures, 2020
In our application of Cragg's (double hurdle) model, we explicitly address functional form misspecification by first using nonparametric regression to identify the functional relationship between aflatoxin infestation and a vector of agronomic and ...
Prince Maxwell Etwire, Edward Martey
doaj   +1 more source

Savanna burning methodology for fire management and emissions reduction: a critical review of influencing factors [PDF]

open access: yes, 2016
Savanna fire is a major source of global greenhouse gas (GHG) emissions. In Australia, savanna fire contributes about 3% of annual GHG emissions reportable to the Kyoto Protocol.
Griffiths, Greg   +7 more
core   +2 more sources

Late Quaternary lake filling and drying in northern Australia's largest freshwater lake

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT Lake Woods, Jurrkulu, is northern Australia's largest freshwater lake filled today in strong Indo–Australian summer monsoons (IASM) to maximum depths of ~5 m. On the western margins of the lake, two large arcuate ridges occur 20 to 40 m above the lake floor and inset within these are other mid‐elevation lake deposits, such as depositional ...
Tim J. Cohen   +14 more
wiley   +1 more source

Multi‐environment trials and participatory validation identify soybean genotypes with mechanized harvest‐enabling traits in Ghana

open access: yesAgrosystems, Geosciences & Environment
Soybean (Glycine max [L.] Merr.) harvesting in Ghana is predominantly manual, and labor shortages frequently delay harvest beyond physiological maturity, exacerbating shattering losses.
Charles Nelimor   +10 more
doaj   +1 more source

The pyrethroid knock-down resistance gene in the Anopheles gambiae complex in Mali and further indication of incipient speciation within An. gambiae s.s.

open access: yes, 2003
In Mali the Anopheles gambiae complex consists of An. arabiensis and Mopti, Savanna and Bamako chromosomal forms of An. gambiae s.s. Previous chromosomal data suggests a complete reproductive isolation among these forms. Sequence analysis of rDNA regions
Touré, YT   +20 more
core   +1 more source

Landscape drivers of scaled quail occurrence across a broad spatiotemporal scale: implications for habitat management

open access: yesThe Journal of Wildlife Management, EarlyView.
Combining large‐scale avian surveys with remote sensing products revealed landscape variables that likely limit scaled quail occurrence at the ecoregion scale in Texas. Promoting management practices that address ecoregion‐specific limiting factors may be key to averting further declines.
Benjamin W. Hoose   +5 more
wiley   +1 more source

Divergent Responses of Fungal Communities to Vegetation Structural Complexity in Degraded Roadside Slopes Across Climatic Gradients

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Understanding how climate and vegetation structural complexity jointly shape fungal communities is essential for effective roadside slope restoration. To address this, we examined restoration effects on fungal diversity, community composition, and ecological networks across three climatically distinct regions: dry‐hot valley, subalpine, and ...
Min Wang   +5 more
wiley   +1 more source

Growth and Fruit Yield of Okro as Influenced by Genotypes and Mulch in the Guinea Savannah Conditions of Ghana

open access: yesInternational Journal of Agronomy, 2017
The experiment was carried out to assess the suitability of different mulch materials in enhancing the growth and fruit yield of okro. Ten okro genotypes were evaluated in a split plot design with 3 replications. Three treatments of mulch (black plastic,
Richard Yaw Agyare   +5 more
doaj   +1 more source

Mapping major types of hunting across the South American Dry Chaco and Chiquitano forests

open access: yesPeople and Nature, EarlyView.
Abstract Hunting is a central, culturally embedded relationship between people and nature, yet also drives wildlife declines with far‐reaching consequences for ecosystems and people. It is also a highly diverse practice, involving a wide range of actors and hunting techniques, both of which determine the social‐ecological impacts of hunting.
Julia Martinez‐Pardo   +23 more
wiley   +1 more source

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