Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons™

Open Access. Powered by Scholars. Published by Universities.®

Plant Sciences

Selected Works

Agriculture

Articles 1 - 6 of 6

Full-Text Articles in Life Sciences

Beta Diversity Of Urban Floras Among European And Non-European Cities, Frank A. La Sorte, Myla F.J. Aronson, Nicholas S.G. Williams, Laura Celesti-Grapow, Sarel Cilliers, Bruce D. Clarkson, Rebecca W. Dolan, Andrew Hipp, Stefan Klotz, Ingolf Kühn, Pter Pyšek, Stefan Siebert, Marten Winter Mar 2015

Beta Diversity Of Urban Floras Among European And Non-European Cities, Frank A. La Sorte, Myla F.J. Aronson, Nicholas S.G. Williams, Laura Celesti-Grapow, Sarel Cilliers, Bruce D. Clarkson, Rebecca W. Dolan, Andrew Hipp, Stefan Klotz, Ingolf Kühn, Pter Pyšek, Stefan Siebert, Marten Winter

Rebecca W. Dolan

Aim- Cities represent an ideal study system for assessing how intensive land-use change and biotic interchange have altered beta diversity at broad geographic extents. Here we test the hypothesis that floras in cities located in disparate regions of the globe are being homogenized by species classified as invasive (naturalized species that have spread over a large area) or as a European archaeophyte (species introduced into Europe before ad 1500 from the Mediterranean Basin). We also test the prediction that the global influences of European activities (colonization, agriculture, commerce) have supported this outcome. Location- One hundred and ten cities world-wide. Methods- …

Go to article

Some Cultivated Plants In Ndumba, Eastern Highlands Province, Terence E. Hays Nov 2012

Some Cultivated Plants In Ndumba, Eastern Highlands Province, Terence E. Hays

Terence Hays

This paper reports on the cultivation and uses of 47 species of minor food crops and other useful plants in Habi'ina village, a Tairora speaking community in the Eastern Highlands Province of Papua New Guinea.

Go to article

A Comparison Of Canopy Evapotranspiration For Maize And Two Perennial Grasses Identified As Potential Bioenergy Crops, Andy Vanloocke, George C. Hickman, Frank G. Dohleman, Carl J. Bernacchi Jul 2010

A Comparison Of Canopy Evapotranspiration For Maize And Two Perennial Grasses Identified As Potential Bioenergy Crops, Andy Vanloocke, George C. Hickman, Frank G. Dohleman, Carl J. Bernacchi

Andy VanLoocke

In the Midwestern US, perennial rhizomatous grasses (PRGs) are considered one of the most promising vegetation types to be used as a cellulosic feedstock for renewable energy production. The potential widespread use of biomass crops for renewable energy production has sparked numerous environmental concerns, including the impacts of land-use change on the hydrologic cycle. We predicted that total seasonal evapotranspiration (ET) would be higher for PRGs relative to maize resulting from higher leaf area and a prolonged growing season. We further predicted that, compared with maize, higher aboveground biomass associated with PRGs would offset the higher ET and increase water-use …

Go to article

Home Grown School Feeding Programmes In Africa, Emmanuel Ohene Afoakwa Apr 2009

Home Grown School Feeding Programmes In Africa, Emmanuel Ohene Afoakwa

Professor Emmanuel Ohene Afoakwa

No abstract provided.

Go to article

School Feeding Programmes In Africa - A Case Study, Emmanuel Ohene Afoakwa Jul 2008

School Feeding Programmes In Africa - A Case Study, Emmanuel Ohene Afoakwa

Professor Emmanuel Ohene Afoakwa

No abstract provided.

Go to article

Building Sustainable Agricultural Development Through Home-Grown School Feeding - The African Approach, Emmanuel Ohene Afoakwa, Linley Chiwona-Karltun Apr 2008

Building Sustainable Agricultural Development Through Home-Grown School Feeding - The African Approach, Emmanuel Ohene Afoakwa, Linley Chiwona-Karltun

Professor Emmanuel Ohene Afoakwa

Proper nutrition is critical for optimal growth, cognitive development, general well-being and academic performance of children. Access to good nutrition either at home or through the educational system can contribute to the elimination of malnutrition and its associated health and developmental problems. In this regard, The 2005 UN World Summit recommended the expansion of local school feeding programmes, using home-grown foods where possible as one of the “Quick impact initiatives” to achieve the Millennium Development Goals, especially for rural areas facing the dual challenge of high chronic malnutrition and low agricultural productivity.

Go to article