scholarly journals Pursuing the potential of heirloom cultivars to improve adaptation, nutritional and culinary features in a changing climate

Author(s):  
Sangam Dwivedi ◽  
Irwin Goldman ◽  
Rodomiro Ortiz

The burdens of malnutrition, protein and micronutrient deficiency, and obesity cause enormous costs to society. Crop nutritional quality has been compromised by the emphasis on edible yield and through the loss of biodiversity due to the introduction of high-yielding uniform cultivars. Heirloom crop cultivars are traditional cultivars grown for a long time (> 50 years), and whose heritage has been preserved by regional, ethnic or family groups. Heirlooms are recognized for their unique appearance, names, uses and historical significance. They are gaining in popularity because of their unique flavors and cultural significance to local cuisine, and their role in sustainable food production for small-scale farmers. As a contrast to modern cultivars, heirlooms may offer a welcome alternative in certain markets. Recently, market channels have emerged for heirloom cultivars in the form of farmer-breeder-chef collaborations and seed savers organizations. There is therefore urgent need to know more about the traits available in heirloom cultivars, particularly for productivity, stress tolerance, proximate composition, sensory quality and flavor. This information is scattered and the intention of this review is to document some of the unique characteristics of heirloom cultivars that may be channeled into breeding programs for developing locally adapted high value cultivars.

Agronomy ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 441 ◽  
Author(s):  
Dwivedi ◽  
Goldman ◽  
Ortiz

The burdens of malnutrition, protein and micronutrient deficiency, and obesity cause enormous costs to society. Crop nutritional quality has been compromised by the emphasis on edible yield and through the loss of biodiversity due to the introduction of high-yielding, uniform cultivars. Heirloom crop cultivars are traditional cultivars that have been grown for a long time (>50 years), and that have a heritage that has been preserved by regional, ethnic, or family groups. Heirlooms are recognized for their unique appearance, names, uses, and historical significance. They are gaining in popularity because of their unique flavors and cultural significance to local cuisine, and their role in sustainable food production for small-scale farmers. As a contrast to modern cultivars, heirlooms may offer a welcome alternative in certain markets. Recently, market channels have emerged for heirloom cultivars in the form of farmer–breeder–chef collaborations and seed-saver organizations. There is therefore an urgent need to know more about the traits available in heirloom cultivars, particularly for productivity, stress tolerance, proximate composition, sensory quality, and flavor. This information is scattered, and the intention of this review is to document some of the unique characteristics of heirloom cultivars that may be channeled into breeding programs for developing locally adapted, high-value cultivars.


Author(s):  
Alexandria Brewer ◽  
Jose F. Alfaro ◽  
Tadeu Fabricio Malheiros

Abstract Aquaponics technology has recently been offered as a good option for sustainable food systems among small-scale farmers, particularly those seeking an organic production or dealing with land quality constraints, such as urban farmers. However, there is a lack of empirical evidence for the capacity of small farmers to adopt the technology. The unique requirements of aquaponics may create technical, economic and even cultural constraints and opportunities. This paper uses empirical evidence gathered with small-scale farmers in São Carlos, State of São Paulo, Brazil, to present the capacity of adoption for the technology, including possible limiting factors and incentives for farmers. The study conducted interviews with owners of ‘agriculturas familiares’ (Portuguese for small family owned farms) within 30 km of São Carlos. The interviews revealed that there is widespread interest in the potential profitability of aquaponics systems, significant interest in environmentally friendly practices, familiarity with organic production and hydroponics and a large base of agricultural knowledge in the community that can drive adoption. However, lack of initial financing, limited human power and concerns about product placement were significant barriers to adoption. For settlement farmers (those working on land formerly abandoned) poor soil quality and water scarcity are key issues that could be alleviated by the technology. The city of Sao Carlos present program for purchasing specific types of products from these farms could be used as a model for increasing aquaponics adoption and relieving success concerns.


Author(s):  
Connor J. Fitzmaurice ◽  
Brian J. Gareau

Without abandoning the practical idea of farming as a business, the small-scale farmers in this book foster connections between consumer experiences and expectations and farming practices that support their visions of organic. They try to build new, alternative markets to challenge the watering down of “organic” that the full-force entrance of corporate market logics ushered in. However, there are limitations to how sustainable such farming operations can be without further changing the relationships the modern food system is based upon. This chapter begins by recognizing the many limitations of localism, including the potentially neoliberal aspects of such efforts. However, the neoliberal notion that individuals can and should bring forth their own interests and engage in political contestation could (paradoxically) be the very kernel that further popularizes small-scale food production networks that provide safer, more healthful food and a better sense of community than the isolating conventional shopping experience. Finally, the chapter considers how deepening consumer involvement in the process of agriculture, incorporating concerns about social justice into local food systems, and addressing the inefficiencies of decentralized food production could push local agriculture to be even more alternative.


2010 ◽  
Vol 25 (3) ◽  
pp. 181-188 ◽  
Author(s):  
Stephen R. Moore

AbstractModern agriculture relies heavily on fossil energy for food production. Reducing fossil energy and replacing that energy with renewable energy is critical in attaining a sustainable food system. Hand-scale intensive food production offers a reduction in fossil energy and an increased use of renewable human-based energy. Using biointensive production techniques, onions (Allium cepa) were grown in Pennsylvania, USA. A life-cycle analysis was performed to monitor energy utilization. Individual human labor tasks were evaluated using the factor method. This method accounts for the type and duration of physical activity. The average yield of eight onion varieties utilizing biointensive production in standard-sized beds (9.3 m2;100 ft2) was 160.2 kg. The US average for mechanical onion production is 46.1 kg/9.3 m2 (100 ft2). The energy efficiency ratio, specific energy and energy productivity were 51.5, 0.03 MJ kg−1 and 32.2 kg MJ−1 (MJ=megajoule), respectively. When defined within common boundaries, these three relationships: energy input, energy output and yield productivity allow researchers, farmers and policy-makers to select production systems and/or practices that better manage fossil and renewable energy for food production. Current mechanized agriculture has an energy efficiency ratio of 0.9. With most energy being supplied by fossil fuels. The energy efficiency for biointensive production of onions in our study was over 50 times higher than this value (51.5) and 83% of the total energy required is renewable energy. Biointensive production offers a viable energy use alternative to current production practices and may contribute to a more sustainable food system.


2016 ◽  
Vol 32 (5) ◽  
pp. 403-416 ◽  
Author(s):  
Analena B. Bruce ◽  
Rebecca L. Som Castellano

AbstractAlthough alternative food networks (AFNs) have made strides in modeling socially just and environmentally sound agrifood system practices, the next step is to make these innovations available to more people, or to increase participation in AFNs. However, there are several barriers to expanding the impact of AFNs. The labor intensity of producing and consuming foods in AFNs is sometimes overlooked but poses a significant challenge to alternative agrifood systems’ long-term viability. This paper brings together two independently conducted empirical research studies, one focused on sustainable food production and one focused on food provisioning in the sphere of consumption. Farmers engaged in small-scale alternative food production are investing significantly more time in maintaining the health of their soils by practicing crop rotation, growing a greater diversity of crops and building organic matter with cover crops and compost. Because much of this work is unpaid, the added labor requirements pose an obstacle to the financial viability and social sustainability of alternative production methods. On the consumption side, the labor intensity of food provisioning for women engaged in AFNs, combined with other socio-demographic factors, at times, constrains AFN participation. By identifying the ways in which labor may limit the ability of AFNs to expand to a larger portion of the population, this paper helps shed light on ways of increasing the environmental, social and health benefits of AFNs.


2000 ◽  
Vol 29 (1) ◽  
pp. 31-37 ◽  
Author(s):  
Brian Ilbery ◽  
Moya Kneafsey ◽  
Mike Bamford

Despite the increasingly globalized nature of food production and consumption patterns, the demand for regional speciality food and drink products is also increasing. Yet little research exists that examines the link between specific products and particular places. This paper reports on an EU regulation aimed at ‘protecting’ and ‘promoting’ food and drink products with a recognizable geographical origin. Results indicate quite marked national and regional variations in patterns of uptake, reflecting differences in both the cultural significance of regional foods in Europe and the importance of producer cooperatives. There is a real danger that the regulation will benefit larger producers and retailers, rather than genuine small-scale businesses.


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