Neglected and underutilized crops are domesticated plant species used for food, medicine, trading or cultural practices that are significant within their local communities but are not widely commodified or studied as part of mainstream agriculture. Such crops may be in declining production. They are considered underutilized in scientific inquiry for their perceived potential to contribute to knowledge regarding nutrition, food security, genetic resistance, or sustainability. Other terms to describe such crops include minor, orphan, underused, local, traditional, alternative, minor, niche, or underdeveloped.

Reduction in use is partially due to supply or consumption constraints, poor shelf life, unrecognized nutritional value, poor consumer awareness, and its reputational perception as famine food ("poor people's food"), which is partially due to the modernization of agricultural practices. Some crops experienced genetic erosion of their gene pool due to this neglect, which resulted in them becoming regarded as lost crops.

As the demand for plant and crop attributes changes (reappraisal or discovery of nutritional traits, culinary value, adaptation to climate change, etc.), some previously neglected crops, such as oil palm, soybean, and kiwifruit, have overcome such constraints via more large-scale production and use, becoming regarded as globally significant crops.

For example, Cherimoya and Bambara crops produced in Colombia and Mozambique respectively, aid the local population in food security, allowing them physical and economic access to sufficient food for meeting their dietary needs, even during a famine.

Overview

While just three crops, maize, wheat, and rice, account for approximately 50% of the world's consumption of calories and protein,  about 95% of the world's food needs are provided by just 30 species of plants. 

Contrarily, names of crop species compiled as edible extend to around 12,650. Among these are neglected and underutilized plants that could be, and in many cases have been, used for food and other uses on a larger scale historically.

Definition
It is difficult to precisely define which attributes make a crop "underutilized", but often they display the following features:
 Linkage with the cultural heritage of their places of origin
 Local and traditional crops whose distribution, biology, cultivation and uses are poorly documented
 Adaptation to specific agroecological niches and marginal land
 Weak or no formal seed supply systems
 Traditional uses in localized areas
 Produced in traditional production systems with little or no external inputs
 Receive little attention from research, extension services, policy and decision makers, and consumers 
 May be highly nutritious and/or have medicinal properties or other multiple uses

Neglected crops are primarily grown by traditional farmers. These species may be widely distributed beyond their centers of origin but tend to occupy unique niches in the local production and consumption systems. They are critical for the subsistence of local communities yet remain poorly documented and neglected by mainstream research and development activities. Many staple crops, especially in the developing world, are poorly studied by researchers. For example, the Green Revolution saw massive changes in agricultural productivity in Asia, but African crops saw little benefit.

Importance
Underutilized crops continue to play a vital role in the subsistence and economy of poor people throughout the developing world, particularly in the agrobiodiversity-rich tropics. Despite their potential for dietary diversification and the provision of micronutrients such as vitamins and minerals, they continue to attract little research and development attention.

Alongside their commercial potential, many underused crops provide essential environmental services as they have adapted to marginal soil and climate conditions.

Constraints
The following are frequent constraints:
 limited germplasm available;
 lack of technical information;
 lack of national policy;
 lack of interest by researchers, agriculturists and extension workers;
 lack of producer interest.

Examples

Determination of the underutilized status of a crop varies among researchers. Different criteria and approaches are used to define this particular group of crops. Neglect refers to the attention the crop has received from research and development and can be evaluated by how well national and international policy and legal frameworks and research and development programs support the conservation and sustainable use of the crop. Underutilization is particular to the geography and potential for a crop to contribute to better diets and production systems. In any cases where exotic or diversified species are underutilized in a region, these are not necessarily underutilized in other parts of the world. Below is an example list of neglected and underutilized species that is not exhaustive.

Cereal and pseudocereal crops

Fruits and nuts species

Vegetable and pulse crops

Root and tuber crops

Other crops 

 Ensete ventricosum

Industrial underutilized crops

Oil seeds

International events that fostered underutilized crops

 1987 - Establishment of the International Centre for Underutilized Crops (ICUC)
 1996 - The FAO Global Plan of Action for Plant Genetic Resources for Food and Agriculture emphasized the importance of underutilized crops
 1999 - At an international workshop held in Chennai, India, the Consultative Group of International Agricultural Research (CGIAR) recognized the contribution that neglected and underutilized species make to food security, rural incomes and combating poverty
 2002 - Establishment of the Global Facilitation Unit of Underutilized Species (GFU) of the Global Forum on Agricultural Research (GFAR), and was housed within Bioversity International, Rome, Italy.
 2008 - Establishment of Crops for the Future (CFF) which is a merging of ICUC and GFU, based in Malaysia 
 2011 - Establishment of Crops for the Future Research Centre (CFFRC) in Malaysia 
 2012 - The international Crops for the 21st Century seminar held on 10–13 December 2012 in Córdoba, Spain aimed to discuss major topics related to underlining the role of neglected and underutilised species to address food and agriculture challenges in the future.
 2013 - Official launch of the International Year of Quinoa (IYQ-2013), intended to increase awareness, understanding and knowledge about quinoa and its importance on food security.
2013 - 3rd International Conference on Neglected and Underutilized Species, Accra, Ghana - to ensure that research on neglected and underutilized species (NUS) is demand-oriented and that results are better shared and applied, researchers, extension agents, the private sector and farmers must engage in more collaboration - in sub-Saharan Africa.

See also
 Food security
 Heirloom plant
 List of useful plants
 Slow Food
 Subsistence farming
Food biodiversity

References

External links

 Crops for the Future
 NUS Database Asia
 NewCROP the New Crop Resource Online Program
 NUS Community - Bioversity International
 CGIAR Research Program on Roots, Tubers and Bananas

Economic development
Crops