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

Life Sciences Commons

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

Plant Sciences

PDF

Selected Works

Food security

Articles 1 - 5 of 5

Full-Text Articles in Life Sciences

The Costs Of Photorespiration To Food Production Now And In The Future, Berkley J. Walker, Andy Vanloocke, Carl J. Bernacchi, Donald R. Ort Jan 2017

The Costs Of Photorespiration To Food Production Now And In The Future, Berkley J. Walker, Andy Vanloocke, Carl J. Bernacchi, Donald R. Ort

Andy VanLoocke

Photorespiration is essential for C3 plants but operates at the massive expense of fixed carbon dioxide and energy. Photorespiration is initiated when the initial enzyme of photosynthesis, ribulose-1,5-bisphosphate carboxylase/ oxygenase (Rubisco), reacts with oxygen instead of carbon dioxide and produces a toxic compound that is then recycled by photorespiration. Photorespiration can be modeled at the canopy and regional scales to determine its cost under current and future atmospheres. A regional-scale model reveals that photorespiration currently decreases US soybean and wheat yields by 36% and 20%, respectively, and a 5% decrease in the losses due to photorespiration would be worth approximately …


Current State Of Food Security: Research, Education And Outreach In Burkina Universities, Mamoudou H. Dicko Prof. May 2013

Current State Of Food Security: Research, Education And Outreach In Burkina Universities, Mamoudou H. Dicko Prof.

Pr. Mamoudou H. DICKO, PhD

Burkina Faso is a Sahelian West African country. Current population is about 16 millions and 43.9 % live below the poverty line. Burkina Faso is classified as both a least developed country and a low-income, food-deficit country. The nutritional quality is poor (1830 against 2000 Kcal/person/day). Food insecurity affects 50 % of households, and is increasing in the urban areas. However, Burkina Faso is one of the country that respect the 2003 Maputo’s declaration’s call to invest at least 10 percent of the budget in agriculture, in order to increase agricultural production and attain food self-sufficiency. Several training programs dealing …


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.


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.


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.